{"id":382,"date":"2013-10-28T14:30:19","date_gmt":"2013-10-28T14:30:19","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/?p=382"},"modified":"2013-10-28T14:30:19","modified_gmt":"2013-10-28T14:30:19","slug":"scratch-variables","status":"publish","type":"post","link":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/","title":{"rendered":"Scratch &#8211; Variables"},"content":{"rendered":"<div id=\"_mcePaste\">These are storage locations in RAM, controlled by the programming language.<\/div>\n<div id=\"_mcePaste\">The data types we will be using are<\/div>\n<div id=\"_mcePaste\">\n<ul>\n<li>Numeric (numbers)<\/li>\n<li>String (text)<\/li>\n<\/ul>\n<\/div>\n<p><a href=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/2-Variables.ppt\">Slides<\/a><\/p>\n<p><!--more--><div data-carousel-extra='{&quot;blog_id&quot;:12638,&quot;permalink&quot;:&quot;https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/&quot;}' id='gallery-1' class='gallery galleryid-382 gallery-columns-3 gallery-size-thumbnail'><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide01.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide01-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f6e88d7cc143a256e48e03354cccd750f56b4e35e8926771a237e9660f2b1d7c\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide01-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=f6e88d7cc143a256e48e03354cccd750f56b4e35e8926771a237e9660f2b1d7c 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide01-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3e68442b2533b87ca6beef8755859fd5736c43963aa30881510dd98952f920f0 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide01.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"383\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide01-4\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide01.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide01\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide01-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3e68442b2533b87ca6beef8755859fd5736c43963aa30881510dd98952f920f0\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide01.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide02.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide02-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=102e66c00975d4a4affe53749c8fcd3976e3e9416f4e9cc0f996816ed9859c62\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide02-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=102e66c00975d4a4affe53749c8fcd3976e3e9416f4e9cc0f996816ed9859c62 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide02-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9d89a807fbe23d2b69e1cf53110d074e500f5784679bd873ef8a32d77491e8e8 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide02.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"384\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide02-4\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide02.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide02\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide02-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9d89a807fbe23d2b69e1cf53110d074e500f5784679bd873ef8a32d77491e8e8\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide02.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide03.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide03-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=532b5012d9f5f1b7b8ba57fc90eb8813d3aa5d801bd10a284c2182877b61cdb6\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide03-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=532b5012d9f5f1b7b8ba57fc90eb8813d3aa5d801bd10a284c2182877b61cdb6 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide03-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4d21c834f5a8e069a94ee1cb49afc0a366e436e4f136e3112a540f66c7365ca2 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide03.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"385\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide03-4\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide03.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide03\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide03-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4d21c834f5a8e069a94ee1cb49afc0a366e436e4f136e3112a540f66c7365ca2\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide03.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide04.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide04-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=bcd680814badf8116e3a5a9c0ae3e32cb0c8924038a3bb64493291e9b695b15f\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide04-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=bcd680814badf8116e3a5a9c0ae3e32cb0c8924038a3bb64493291e9b695b15f 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide04-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5d05edfa5fc4642cdb7a78ce7b702b139720227f5a275e3a69dac29559263795 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide04.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"386\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide04-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide04.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide04\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide04-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5d05edfa5fc4642cdb7a78ce7b702b139720227f5a275e3a69dac29559263795\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide04.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide05.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide05-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=ab0b5329a0b61a18f01385f3a0ccce4a865d20cc8e0f5b1970bbe874d1930346\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide05-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=ab0b5329a0b61a18f01385f3a0ccce4a865d20cc8e0f5b1970bbe874d1930346 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide05-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=8664a297cc44ad920f5c9386f94cf4ca7fa78520a799979ddcc04bad98b72ccf 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide05.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"387\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide05-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide05.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide05\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide05-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=8664a297cc44ad920f5c9386f94cf4ca7fa78520a799979ddcc04bad98b72ccf\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide05.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide06.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide06-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=33ebbded8809d99f2288dd42a18d36b766ed5b781142affdf2ab85d2b231e355\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide06-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=33ebbded8809d99f2288dd42a18d36b766ed5b781142affdf2ab85d2b231e355 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide06-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=37c848c44eb9beef8ee8d4f100b0b0a5ca12af48c97e80b6a96b921c49aeb0e7 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide06.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"388\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide06-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide06.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide06\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide06-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=37c848c44eb9beef8ee8d4f100b0b0a5ca12af48c97e80b6a96b921c49aeb0e7\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide06.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide07.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide07-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4a79cf5d24238cf3c119e10c777700d810f3d6ff5bb7d2fad6a9107791b75053\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide07-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4a79cf5d24238cf3c119e10c777700d810f3d6ff5bb7d2fad6a9107791b75053 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide07-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=d136542fb0bc8b744c5a6ac9e3ee6546cd681e1c32fc6f69372cc9c3cf257b07 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide07.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"389\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide07-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide07.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide07\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide07-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=d136542fb0bc8b744c5a6ac9e3ee6546cd681e1c32fc6f69372cc9c3cf257b07\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide07.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide08.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide08-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e1ea58495f3cfe61061e3cc11c219c86c6be21171fe81368b6577e9adb1d84a1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide08-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e1ea58495f3cfe61061e3cc11c219c86c6be21171fe81368b6577e9adb1d84a1 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide08-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=7fadf7ca33a4b8f1d60977196a0f46f1ceb4938f3d9302b82e3cf79bec745c32 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide08.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"390\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide08-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide08.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide08\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide08-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=7fadf7ca33a4b8f1d60977196a0f46f1ceb4938f3d9302b82e3cf79bec745c32\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide08.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide09.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide09-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=114a34cf950b434bfef1e07c53e865f941cdc918f7996a52cef3434f34f1873b\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide09-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=114a34cf950b434bfef1e07c53e865f941cdc918f7996a52cef3434f34f1873b 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide09-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=85a99b73253f7df8c2b997e5c8954d5ee53b2d276b291199692e63d9fc4c5d37 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide09.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"391\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide09-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide09.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide09\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide09-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=85a99b73253f7df8c2b997e5c8954d5ee53b2d276b291199692e63d9fc4c5d37\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide09.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide10.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide10-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b9f0e8e4c817f59b777bcd7c62a51d8c53f2a97f1dfbe237637f141b48a8e486\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide10-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b9f0e8e4c817f59b777bcd7c62a51d8c53f2a97f1dfbe237637f141b48a8e486 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide10-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3a773fb3fe80d36ab06a560c99e27520a8513827029e8102299eccb3eb76ca18 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide10.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"392\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide10-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide10.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide10\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide10-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=3a773fb3fe80d36ab06a560c99e27520a8513827029e8102299eccb3eb76ca18\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide10.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide11.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide11-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=38674a3cacbbf6210c601dd594b725f4a032d8fcfa51f3d8bac0189e54fffd09\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide11-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=38674a3cacbbf6210c601dd594b725f4a032d8fcfa51f3d8bac0189e54fffd09 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide11-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e38b964ca5495f9c79ff29050f61b212f05acf787d2470c9e64e017d15cea11e 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide11.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"393\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide11-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide11.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide11\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide11-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=e38b964ca5495f9c79ff29050f61b212f05acf787d2470c9e64e017d15cea11e\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide11.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide12.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide12-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=abb7a7e27c886d0d3449afca2dc81670f1858f7263c73fdb9a21d8b9c3c0f6e2\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide12-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=abb7a7e27c886d0d3449afca2dc81670f1858f7263c73fdb9a21d8b9c3c0f6e2 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide12-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=767576ab61ce79f163a0cf4c091a63618367cd17cab8702a04b90b3cbe0d7f1c 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide12.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"394\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide12-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide12.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide12\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide12-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=767576ab61ce79f163a0cf4c091a63618367cd17cab8702a04b90b3cbe0d7f1c\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide12.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide13.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide13-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b564f079a717c3c20334ea1c94bafab0ac9fcf9263cb8f7cf6258e4156a84fa2\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide13-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=b564f079a717c3c20334ea1c94bafab0ac9fcf9263cb8f7cf6258e4156a84fa2 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide13-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a0f6b26156cf39f98bdb6a04ff8d9f144afcc35881ce34db62a0f0968c287029 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide13.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"395\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide13-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide13.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide13\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide13-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a0f6b26156cf39f98bdb6a04ff8d9f144afcc35881ce34db62a0f0968c287029\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide13.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide14.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide14-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5f233a332e36ef9a779a18cf6cfdf0e8192963dc9dd3b881b5f30a3aa8909999\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide14-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=5f233a332e36ef9a779a18cf6cfdf0e8192963dc9dd3b881b5f30a3aa8909999 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide14-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=aa17bcb631c071913195601047ff6948c3b456226117192e086b1fa03def153e 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide14.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"396\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide14-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide14.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide14\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide14-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=aa17bcb631c071913195601047ff6948c3b456226117192e086b1fa03def153e\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide14.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide15.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide15-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a8adc6f28690ade26d6634dadcdd4bc6da2576f274ce628c21da2d391233fe8d\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide15-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=a8adc6f28690ade26d6634dadcdd4bc6da2576f274ce628c21da2d391233fe8d 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide15-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=6695b170d76b248a92cedfc5c3c6b06b5cfdc515535cd69cb0a3e3e4abf4de7b 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide15.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"397\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide15-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide15.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide15\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide15-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=6695b170d76b248a92cedfc5c3c6b06b5cfdc515535cd69cb0a3e3e4abf4de7b\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide15.png\" \/><\/a>\n\t\t\t<\/div><\/figure><figure class='gallery-item'>\n\t\t\t<div class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide16.png'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"112\" src=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide16-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=cde2c1bd6675dca1e413d78ff0e2741446ed427948bfa1c6411b896f2bf79fc1\" class=\"attachment-thumbnail size-thumbnail\" alt=\"\" srcset=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide16-150x112.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=cde2c1bd6675dca1e413d78ff0e2741446ed427948bfa1c6411b896f2bf79fc1 150w, https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide16-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=de0ca440d6e3b9acd21e01ef219c9ecce2f229267ad3e72e1937790e008b8738 300w, https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide16.png 800w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" data-attachment-id=\"398\" data-permalink=\"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/2013\/10\/28\/scratch-variables\/slide16-5\/\" data-orig-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide16.png\" data-orig-size=\"800,600\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;}\" data-image-title=\"Slide16\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/glow-prod-nl.s3.eu-west-1.amazonaws.com\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide16-300x225.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEIP%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIQDxAveiSw13Ij%2B%2FBLZ1npaeeXpA08eN2HHrFhcCpRkVRwIgEJypkVL%2F9ET2SqzkbZAp%2FVwpqJ6i%2FiZ3wbJOu%2BQ5b6squQUISxAFGgwyNzM1NzAxOTU0MzMiDHNCWGYyUZG55P7FXCqWBWiCxOojX%2FAvTLcEe9UPYLgW7Uenv5FopqGgqrsvBsUUYSYXls5Bg38AjbxYXj87dgOYj1m2MA0WnUjivGbmTJuamMrvMDN4miK2waw5X2pqMIegirD%2Fxsj24fTlduBzptpFAXpefJu9e5kRfF1TFXkEElTghVwemkwT99vVo3s3688ytEqy%2B8VFoElDuFBUyrGYEBiegpC1pJKHGGjjtQhniL4lcaQOacTqBVNLDiJQGrjJw5cvuczyufbao3m1Pj6id7IZQhRasW%2BtgZqOtlRBTL9ai%2F7jpsKnl6I6HG3CzSIdTonQ4swstLtOVMp%2F7XYXs22%2FtiR6HZRGbHFuVufYR0KIGVIXGYQ8JXxVV%2FhTzupLv3qZSMV%2BXeDz4KUTqI0iItdwSugKu5fkY5VQxvAQX8rp0l5L5u50QXZyGQaKw98OgOkQn9riGdfBSCK1h5Nu%2FHolllsaNwn0%2FBmSe26f1LTmWqyGrx8Q0We%2B1NXlyiuLhFLpon4B0tvrpDbKpW7VLoKFZzFGBSlHluLDzoVgPfzcO7505wJVItlL2mqVyc0RwnLdFw%2BWT3tFE3yI2xN3w3iH3YANjNfuOyYQgjrZSt8Rcg7yv3SkINcQJMmaJ4qugm26840%2BRuFM2FXp%2BSYBZtKVnRoFuORy%2BGRmXKu83xiJnrCRR8Wj76Ka9UP7vonnzrr%2Bn1S9FNCWHWAl3bkX09LffZ5Ily6j0nu3u2I27tpOx5aWcEnvIT0hKJZ0n%2FqthgpTFHeNAGl0S%2BNlgHTZTyK2B2BBn%2FJmx9s7%2BaXKB2ORQIr6tlaOdWZpwzt%2F2HsyxNSezCh7RGS0aH5E9MaGjM5WMdPY8LqjMCpz60qoBE6jR2wywyLEV1DgWg1fRpPR3%2BvDMKaAk9AGOrEBJw0owlw49ZZ%2FHf7qwOA%2B%2FrAaiF5oI%2BYE10MDGlTu9jvpbMYF6akcdpc2gHSI0msWtgIRO3xtzuHVq77%2Bu6Y76O0TVgmfCd6H4anxtrclffkqOcse8LaegMNlb6G3il2Rhe3vjMTIWs8p98Jhk2vutzqzb7j35tjiCSkQOecom4sJjtp0uQonWxgF2ssSZJbHvyDmWNDrPOlegfIF1Fll8hIr%2F7UbJyWPw4bZFo4LKmCg&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UX3J7M72X%2F20260513%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260513T190448Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=de0ca440d6e3b9acd21e01ef219c9ecce2f229267ad3e72e1937790e008b8738\" data-large-file=\"https:\/\/blogs.glowscotland.org.uk\/nl\/public\/ColtnessHS-ComputingScience\/uploads\/sites\/12638\/2013\/10\/Slide16.png\" \/><\/a>\n\t\t\t<\/div><\/figure>\n\t\t<\/div>\n<\/p>\n","protected":false},"excerpt":{"rendered":"<p>These are storage locations in RAM, controlled by the programming language. The data types we will be using are Numeric (numbers) String (text) Slides<\/p>\n","protected":false},"author":32,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17933,17012,17009],"tags":[],"class_list":["post-382","post","type-post","status-publish","format-standard","hentry","category-data-types-and-structures","category-national-4","category-software-design-devlopment"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/users\/32"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/comments?post=382"}],"version-history":[{"count":2,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/382\/revisions"}],"predecessor-version":[{"id":401,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/posts\/382\/revisions\/401"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/media?parent=382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/categories?post=382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/nl\/ColtnessHS-ComputingScience\/wp-json\/wp\/v2\/tags?post=382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}