Category Archives: Discovering Maths

Final Thoughts on Discovering Mathematics

At the beginning, I was unsure if this module would be beneficial for me. This was because during the first session we were asked to put up our hands if we have maths anxiety. For me, this is something I had never really considered as I loved maths throughout school and I started to feel like I had picked the wrong module. However, I was wrong.

This module has opened my eyes to the world of mathematics. I always knew maths featured in the real world but hadn’t ever really been taught that. In school, it was all about textbook work and learning to pass exams rather than how these methods can be applied to the real world and the history of mathematics and how these topics came about. It had also never occurred to me that we need to have basic knowledge of mathematical concepts in order to understand further mathematics topics and make these links to our daily lives. From medicine to playing hockey, playing Monopoly to making a patchwork quilt, it is undeniable that mathematics features in many places.

As a trainee teacher, I believe it is important to consider Liping Ma’s ideas on the key processes to make a good mathematics teacher. These are [inter]connectedness, multiple perspectives, basic principles and longitudinal concepts as previously discussed in my blogs. By making these key processes a part of learning and knowing the mathematical concepts ourselves, we are able to successfully and effectively educate the future doctors, artists and teachers of this world. By grasping basic concepts early on, pupils are able to progress into more complex processes and discover the importance of these basic areas to explore further mathematics. If pupils are able to make links between mathematics and their daily living, they are more likely to find mathematics an enjoyable and worthwhile subject which is not limited to textbooks and exams but extends to infinity and beyond!

For me, this module has truly opened my eyes and encouraged me to look for mathematics everywhere. I had never thought about the mathematics behind taking a photo, tuning a piano or the formation of plants. It is incredible that no matter where we look, there will be mathematics nearby. I believe it is important for children to learn this at an early stage and hope to be a teacher who encourages the exploration of mathematics both inside and outside the classroom on a daily basis. I want to have pupils come up to me and tell me of their new mathematical discoveries from playtime and home as well as in the classroom.

 

Maths in Time, Computing and Gaming

Before this lecture, I had never really considered the link between maths, time, computing and gaming. Whilst I have always known that time obviously requires maths, I hadn’t thought much about what life was like before mechanical clocks.

Before clocks existed, many people relied on nature to grasp the concept of the passing of time. For example, the movement of the sun across the sky would indicate day and night. It is believed that in the past, ancient people divided the sun’s cycle into different timekeeping periods. For example, the ancient Egyptians built tall obelisks that would cast shadows to help divide the day into sections (Wonderopolis, 2017). We watched an interesting video on an elephant water clock in class (Luppino, 2015). I was fascinated by the mechanics and level of maths behind this to make everything work at the right time.

Isn’t it just incredible how many different units of time we have? From milliseconds to centuries, minutes to years, it is so vast. We also looked at the idea of other planets and how their idea of time is different to ours e.g. 1 day on earth is 24 hours whilst 1 day on Venus is equivalent to 116 days 18 hours on earth. This all depends on how long it takes the planet to rotate on its own axis. A year on a planet depends on how long it takes for the planet to complete one full orbit around the sun. This is something which could be explored within the classroom where pupils investigate the idea of time on different planets and compare them.

Whenever I was younger, I used to think that the whole world was at the same time of day as me. Obviously, I later discovered this was incorrect. The idea of time zones is just amazing and very relevant for me. I have several family members in Canada including my brother and friends in places such as New Zealand. It is therefore necessary for us to consider each other’s time differences before we Facetime. This is especially strange with Kiwis as they are 13 hours ahead which means they are often a day ahead in a sense.

Maths is crucial in timetabling as you need to schedule different lectures for different times and ensure that no room or lecturer is double booked. This is a complex process and something I don’t think I could do! The idea of sitting with pages of names, subjects, rooms and lecturers to sort into a timetable just freaks me out! Would it be easier to use computer timetabling to get an automatic timetable for all students and lecturers? Whilst it would probably be a lot easier and quicker, there would be a lack of personal touch in that nobody wants a 4-5pm lecture on a Friday! Furthermore, a lecture could finish at 11am in the Tower Building and the next one start at 11am in Dalhousie. There is no way you could make it to lectures on time if this was the case.

Whilst at school, I studied A level Applied ICT. This involved creating a game, another aspect of computing that requires maths. The idea of direction was crucial in my game as it was a maze game. The number of coins that were collected needed to be calculated up and the character needed to only be able to move within the game path. I also used the programme Scratch where I created Sprites. This involved programming the sprite to move X steps in a particular direction and turn different angles. This is something I would definitely consider using in the classroom to allow children to see basic maths in action within gaming.

I do not have a huge interest in maths in computing, however, I believe that it is an important part to teach as this may be an area of interest for some children in my class. This could spark learning and be a great tool to help them engage. Without a doubt, many children are keen on video and computer games nowadays which if brought into the classroom to explore maths could be a successful lesson. I think it is important to let children explore the ideas themselves before coming together to discuss them.

Luppino (2017) THE ELEPHANT CLOCK for “Science in a Golden Age” (Aljazeera English). Available at: https://vimeo.com/146231543 (Accessed: 11 November 2017).

Wonderopolis (2017) How Did People Keep Time Before Clocks?. Available at: https://wonderopolis.org/wonder/how-did-people-keep-time-before-clocks (Accessed: 11 November 2017).

Gambling- More than Just ‘Luck’?

Gambling has never been something that has appealed to me or that I’ve taken time to consider. To me, it has always just seemed like you’re pretty much snookered and are just going to lose money most of the time, unless you’re lucky. I have, however, considered the idea of chance and probability which wasn’t something I’d ever linked to gambling.

We started off the lecture by considering a restaurant which had 2 choices of starter, 3 choices of main and 2 choices for dessert and how many different combinations the restaurant could serve. I worked this out by giving names to each dish e.g. Tomato soup, steak and chips and chocolate fudge cake. I then wrote out each starter and completed the meal by changing the main and dessert each time. I concluded that there could be 12 different combinations. This would be a good starter activity in the classroom to get children thinking about the probability of getting a certain selection of dishes.

In the counter intuitive maths lecture, we considered this idea with socks- 4 black, 4 red and 4 blue and how many socks you would need to make a pair. The answer is 4 as you only need 1 more sock than the number of different colours. Again, this is something which could be explored in the classroom.

A die is one of the most commonly used objects within probability and is used a lot in gambling. It is unlikely I will use gambling as a main tool to teach probability, however, I will use the idea of rolling a die. Some activities could include getting children to record what they roll for a certain number of throws or asking them to calculate the probability of rolling certain numbers e.g. the chance of rolling a 5 on a 6-sided die i.e. 1/6. They could then look at throwing a 5 on both 6-sided dice i.e. 1/36. The probability of this happening is actually calculated by subtracting the probability of it not happening away from 1. I have explained this below:

One throw chance of not doing it was 35/36

Second throw chance of not doing it was also 35/36

So 35/36 x 35/36 = chance of not doing it……?

= 0.945

So 1 – 0.945 = Chance of doing it once

= 0.055 or 5.5%

Before this input, I would not have known that this can be used in gambling and slot machines to work out the chance of winning or losing. Maths is used when designing the likes of slot machines as the probability of an outcome multiplied by the pay-out/prize for that combination will never equal to 100%. This means that slot machines will always win and earn a profit, never the player. Additionally, this can be ‘weighted’ so that bigger prizes or frequent smaller prizes are paid out, resulting in more money for the casino (Holme, 2017).

Heads or tails is another way maths could be used in the classroom to explore probability. John Kerrich who was a prisoner of war in World War II must have reached a point of complete boredom and desperation that he flipped a coin 10,000 times (Holme, 2017). You would normally assume that it would land on heads 5,000 times and tails 5,000. Incorrect. The coin landed on heads 50.67% of the time meaning it was not a 50/50 chance. Furthermore, Stanford University found that the coin landed on the side it started 51% of the time out of 6000 flips (Holme, 2017). We explored this ourselves by flipping a coin and found that these theories may well be true.

Stefen Mandel (paulwherbert, 2010) is a prime example of using maths not luck. He won fourteen lotteries. He won the Virgina Lottery and knew he was going to win the £27 million before it was announced. Along with 2,500 Australian investors, he created a lottery pool by attempting to buy all the tickets to cover every possible combination. They each paid £4000 and bought tickets as Virginia had no laws on how many tickets a person could buy. They bought 7.1 million combinations at $1 each. However, trouble struck when a store refused to sell them anymore tickets. This meant that they were missing 10% of the tickets, meaning they were no longer guaranteed to win. Ultimately, they ended up winning and the maths had been worth it. I think this is crazy! I have a friend whose dad and his friend purchased as many Irish lottery tickets as they could and never won so they gave up. Instead, they decided that for one week they would enter the British lottery, the one week that their Irish lottery ticket would have matched the Irish lottery- how typical!

There is more to gambling than just luck, there is fundamental mathematics behind it. For me, I don’t think that gambling is worth the time or the money unless you are crazy and rich enough to do as Mandel did. However, a lot of countries have now banned this technique so it’s probably not worth your while really! I think I will keep to the likes of rolling dice and flipping coins to explain chance and probability in my classroom!

Holme, R. (2017) ‘Counter intuitive maths MyDundee 2017 [Powerpoint Presentation]’ ED21006: Discovering Mathematics (year 2) (17/18). (Accessed: 9 November 2017).

Holme, R. (2017) ‘Chance and probability RH lecture 2017 [PowerPoint Presentation]’, ED21006: Discovering Mathematics (year 2) (17/18). (Accessed: 9 November 2017).

Paulwherbert (2010) Stefen Mandel. Available at: https://www.youtube.com/watch?v=4TqFp0efLK0 (Accessed: 9 November 2017).

 

Maths in Music

As someone who does not consider themselves musical, I hadn’t really put much thought into how maths is needed in music. I love listening to music and find it a great way to relieve stress whilst belting out a song! However, I studied music in school and absolutely hated it. I would dread walking into that classroom to be asked to play the Eastenders theme tune yet again on the recorder or be asked yet another music related question that I had no clue how to answer and to be frank didn’t care about! I knew of the basic elements of music e.g. tempo, rhythm, dynamics but I didn’t fully understand how maths held such a great purpose in music. After our input with Paola, my eyes have been opened!

In pairs, we had to think of as many links between maths and music as possible. Megan and I came up with quite a few including the note values, beats in a bar, the actual making of an instrument and counting songs. Other ways in which maths and music link include tuning instruments, figured bass, scales and even the Fibonacci sequence! This is because there are 13 notes in an octave e.g. from C to C. A scale is composed of 8 notes. The 5th and 3rd notes form the basic ‘root’ chord and are based on whole tone which is simply 2 steps from the root tone i.e. the first note of the scale (Sangster, 2017).

During the workshop, we looked at rhythm practically by playing various instruments in different groups and keeping a beat. This is something which could be used within the primary classroom to develop understanding of maths in music through counting to keep in time. Instruments may include drums, tambourines, maracas, triangles and xylophones.

Scales are another aspect of music which uses maths. It links to the idea of pattern e.g. a major scale of C has the pattern of tone, tone, semitone, tone, tone, tone, semitone i.e. C-D-E-F-G-A-B-C. we then tried to figure out the major scales for other notes. Whilst this was tricky, I think an upper years class could attempt this activity to increase their understanding of music whilst using maths. The pentatonic scale is a common scale used in music as it is based on 5 notes per octave. It is so fundamental and Howard Goodall explains in a video ScoobyTrue, 2008) that he believes that we are in fact born with these notes instilled in us. In another video (J.K., 2012), Bobby McFerrin demonstrates just how naturally the pentatonic scale comes to us, thus supporting Goodall’s point. I found this video fascinating as when McFerrin moves past the 5 notes, the audience are able to automatically continue the scale with the correct notes. He mentions that it happens with every single audience. This shows the predictability of the pentatonic scale.

The idea of tuning instruments requires maths as the frequency/pitch is crucial here. Before this input, I did not know that tuning an instrument to a perfect pitch makes it sound odd. Therefore, instruments are not tuned perfect and in fact it is impossible to tune an instrument. Tuning is beyond just maths- it also requires a musical ear to determine when it is tuned. We watched a video (minutephysics, 2015) exploring this.

Often, musical instrument design is based on phi, the golden ratio e.g. violins. Interestingly, the climax of songs is usually found at the phi point (61.8%) of the song, rather than at the middle of end (Meisner, 2012).

As I did not enjoy music as a pupil, I was feeling very hesitant to teach it but knew I would need to in order to provide fair opportunities to pupils and meet the curriculum. Whilst I am not confident in music, I do enjoy maths. For this reason, I feel slightly more confident about teaching music in the classroom as I am able to link it back to a subject I am more confident in. This input has shown me some ways in which I could teach music to future classes.

J.K. (2012) Bobby McFerrin Demonstrates the Power of the Pentatonic Scale. Available at: https://www.youtube.com/watch?v=_Irii5pt2qE (Accessed: 9 November 2017).

Meisner, G. (2012) Music and the Fibonacci Sequence and Phi. Available at: https://www.goldennumber.net/music/ (Accessed: 9 November 2017).

minutephysics (2015) Why It’s Impossible to Tune a Piano. Available at: https://www.youtube.com/watch?v=1Hqm0dYKUx4 (Accessed: 9 November 2017).

Sangster, P. (2017) ‘Discovering Maths Oct 2017’ [PowerPoint Presentation]., ED21006: Discovering Mathematics (year 2) (17/18). Available at:  (Accessed: 9 November 2017).

ScoobyTrue (2008) Howard Goodall on Pentatonic Music. Available at: https://www.youtube.com/watch?v=jpvfSOP2slk (Accessed: 9 November 2017).

Maths in Medicine

I have always known that there must be some level of mathematics behind medicine and health care, however, I did not realise just quite how important it is in the world of medicine. As the daughter of a nurse, friends of medical students and someone who considered nursing as a career, I have a basic knowledge of the aspects of maths involved in medicine.

I went to the Royal Belfast Hospital for Sick Children for a week where I spent time in the Infectious Diseases ward, Oncology and Haematology unit as well as exploring the other aspects such as renal dialysis and lumbar puncture. During this time, I experienced maths in medicine by doing rounds of observations. This involved taking the oxygen saturation levels, blood pressure, respiratory rate, temperature and heart rate. All of which are mathematical measurements which need to be recorded to determine a score on the observation chart.  As observations need to be on frequently e.g. every 2 hours, you can easily compare whether the patient is getting better or deteriorating as it forms a line graph. In primary schools, often charts are made from a tally of cars that have drove past. This is quite irrelevant as a topic, however, the skill of creating and reading graphs is developed through this which is a key skill in medicine for not only doctors but also paramedics and nurses.

A further example of using charts in medicine is for measuring a baby during pregnancy. If there is sudden growth noticed in the chart, this will be cause warning bells in the doctor’s head. They will want to get the pregnancy checked out in a scan to see if there are any complications.

I also looked at the idea of calculating drug doses during my work placement as it is different in adults and children. For adults, initially everyone is given the same dosage, no matter their age, weight or height meaning a frail 89-year-old woman would get the same dosage as a tall, obese 30-year-old man. Whilst in paediatrics, the drug dosage is calculated per kg of weight to ensure the child is administered the correct and safe dosage. Another aspect that involves maths is intravenous drips- it is important to calculate how much fluid the patient has lost and how much they need whilst ensuring there isn’t too much fluid going in that the electrolytes end up diluted.

I have also been a regular patient at my local GP practice and have had a few hospital visits which has sparked an interest in this aspect of maths. By attending these appointments, I have been able to see maths in action rather than just reading or hearing about it. I’ve had my blood pressure taken, CAT and MRI scans and been prescribed medication. All of these require maths.

Blood pressure is a ‘mathematical representation’ of two forces. The top number known as systolic is the force against the artery walls when the heart beats and the bottom number known as diastolic is the force against the artery walls between the two beats of the heart (this is when the heart is in a relaxed state). A blood pressure range of 110/70 to 120/80 is considered normal (Medindia, no date).

CAT and MRI scans are both types of x-ray. Maths is required here to monitor the intensity of the x-ray and to angle the rays to scan the required part of the body. When an x-ray passes through the body, it does so in a straight line. The greater the distance, the stronger the x-ray needs to be (Budd and Mitchell, 2008).

Maths is required in prescribing medications as it is important for doctors to prescribe only enough tablets to complete the planned time e.g. a course of antibiotics for 2 weeks. An example in my life is when I went to Canada for the whole summer, I needed enough tablets to do me for 11 weeks. This required calculating how many of each tablet I need each day multiplying that by 7 and then that by 11 to determine the exact quantities I would require to ensure I didn’t have to miss out on medications.

An interesting point was brought up in this workshop about interpreting research and probabilities in medicine. We discussed the idea of statistics and risks e.g. how much your chances increase of death by smoking, being overweight etc. Junior doctors discuss these issues with patients daily yet they often don’t know the statistics and the actual risk increase of lung cancer from smoking. This means that sometimes more senior doctors need to step in with the statistics when chatting to a patient. We discussed whether it is fair to expect junior doctors to know all the statistics when they are just starting their career and how even workers within statistics only know their own area of statistics off by heart and need to look up other statistics.

Biomechanics was mentioned during the workshop which is all about the forces required to cause fractures. We also looked at pharmacodynamics and biochemistry. This involves the amount of a medicine administered depending on how fast it leaves the patient’s body which depends on kidney function and how much the patient urinates.

Something I was not aware of before today was the value of Twitter in medicine. Twitter has been used to discover the waves of diseases e.g. the flu. People tweet about having flu like symptoms which helps the NHS to know that in a short time, there will likely be an increase in patients coming into their local GP practice with the flu due to the spread of it. I was fascinated by this as it could be used to help predict future diseases.

Maths is not only required once you are a qualified doctor, it is required even before you enter university through the UKCAT test scores, UCAS tariffs which consider your upbringing and where you live. The idea of deprivation is considered and it has been found that those from a rich area and with parents who have jobs in professional settings such as doctors, teachers, lawyers etc are the most likely to apply to medical school. However, it was interesting to see that those from a poorer background with parents in manual jobs which don’t require a degree were more likely to apply than those from a rich background with parents in manual jobs. This may be due to schemes to encourage the more deprived who are capable to attend medical school and bring in variety to the world of doctors. By having doctors who are from poorer backgrounds, it helps to break barriers as they can relate to patients and therefore the level of trust may be higher.

During university assessment, maths is required to calculate pupils’ scores and determine if teaching is sufficient. For example, medical students sit a 360 question multiple choice test which is then analysed. It may be found that most students answer D to a question but the “correct” answer was A yet nobody chose this. The medical school would then need to consider why this was and determine if students were in fact correct. Medical students perform OSCEs which are scenario based exams where students go to different stations and must respond to the patient’s case accordingly. Medical schools must determine what is an adequate pass mark to ensure that all students who pass are practicing medicine safely.

Statistics play a huge part in medicine and predicting future illnesses and life expectancies. Life expectancy is calculated by taking the average age of death for everyone that year e.g. if the average age of death was 76.9 in 2017, then the life expectancy for babies born in 2017 would be 76.9. It has been seen that men tend to die approximately 5 years younger than women. This may be due to men, in general, being worse at visiting the doctor and waiting longer to seek help if they have a health concern. Living in a poor area has also been shown to decrease life expectancy, particularly if you are male.

Maths in Medicine could be explored in the classroom in various ways. Role play could be used where children run a doctors’ clinic and must prescribe the correct number of tablets to each patient. Medicine could be brought into maths problems where students must determine how much IV fluid is required to keep a patient healthy. Pupils could consider the different angles required to x-ray a particular part of someone’s body. Older pupils could look into health statistics and even create their own surveys for a topic such as healthy eating or exercise within the class. They could look at the average, mean, median and mode of these figures. Maths is clearly a skill required in medicine and we need to educate pupils on this as for all we know we could be educating a class full of future doctors!

Budd, C. and Mitchell, C. (2008) Saving Lives: The Mathematics of Tomography. Available at: https://plus.maths.org/content/saving-lives-mathematics-tomography (Accessed: 9 November 2017).

Medindia (no date) Blood Pressure Calculator. Available at: http://www.medindia.net/patients/calculators/blood-pressure-calculator.asp (Accessed: 9 November 2017).

Maths in Sport Workshop

During the Maths in Sport workshop, we looked at the factors that make up a football league table. Our task was to redesign the league table from 1888/89 to match a modern day premier league table. Both tables featured the results from the 132 matches played, the wins, draws, losses, goals for, goals against and total points for each of the 12 teams. However, the modern table had the goal difference and the total number of matches played by each team. The goal difference was calculated by subtracting the goals against from the goals for. We could have also calculated up the average number of goals per game by dividing the total number of goals by the number of matches played. The points were calculated using the following equation:

Points = (No. of wins x 2) + no. of draws

Below is the original table, a modern day premier league table and our modern version of the 1888/89 table:

Maths is clearly required in football whether that be for league tables, the size of the pitch or the weight of the ball. As explored before, it is used in other sports such as field hockey. Another sport we looked at was sprinting at the Olympics. It is pretty obvious why maths is needed here- for the times and distances in a race. However, an interesting point was made when we were shown a video (Wimp, 2012) on the history of 100m sprint winners and how runners have got faster as time has went on. One way maths could be used here is to compare the different times for runners and considering the average time and the average age of the winners or the average distance travelled per second.

In groups, we then went onto creating our own sport or further developing a sport which already exists, considering the mathematics involved in it. My group decided to create our own sport- Smack-Ball. The idea of the game was that there would be 2 teams, each with 3 players and the goal was to using only your hands smack the ball off the opposite wall from where your team started. By alternating the hand the ball is on and then passing to team mates, it would then be possible to smack the ball off the wall. However, the opposing team are able to intercept and whack the ball out of your hands. At this point, the first team to pick up the ball has possession. The ball would be hand-span sized to make it a manageable size and 196g (two thirds the weight of a volleyball). The court would be 10m by 5m to make it possible to pass to just one player who could then smack the ball off the wall if they applied a great enough force. Each game would last 10 minutes as only 6 people would play at once so may get tired more easily.

We thought that we could use maths in our sport in the following ways:

  • Using the Pythagoras’ Theorem- This allows for the perfect pass to be made if each team member is positioned correctly. Whilst this would obviously be very difficult in the game, it could be the starting formation after a point is scored. Teams could also discuss their positioning after a game if it was recorded to determine tactics to improve their performance;
  • To determine the force and distance required to hit the ball off the wall to score a point;
  • To determine the perfect time to intercept a pass or the ball out of your opponent’s hand;
  • Ball speed and spin.

After discussing our idea with Richard, we actually discovered that we had created a game which was similar to a popular craze in Ancient Mayan society. Here is a video explaining the game:

Without a doubt, maths is required in many sports to achieve optimum performance. I believe that this could be an interesting lesson idea as children could develop upon a sport they play or are interested in or they could enjoy using their creative side to create an entirely new sport. They could consider the links themselves and then share with other groups who could contribute, allowing children to build upon each other’s ideas. A whole class discussion could then be had on the principles of maths applied in several sports. It could also link into a PE lesson where they look at the idea of maths in sport e.g. time to run 100m, repeat a few times and then average their time.

Museum Secrets by Kensington Communications (2012). Rubber Balls in Mexico: A Long History and a Mayan Tradition. Available at: https://www.youtube.com/watch?v=_ZYpRsxqfFg (Accessed: 8 November 2017).

Wimp. (2012). Usain Bolt vs. 116 years of Olympic sprinters. [Online Video]. 5 August 2012. Available at: https://www.wimp.com/usain-bolt-vs-116-years-of-olympic-sprinters/?dm_i=LQE,25SE0,3LDIRH,7T51A,1/ (Accessed: 8 November 2017).

 

 

Maths in Sport

As preparation for our Maths in Sport input, we were asked to consider the mathematics used in a certain sport. I chose field hockey as I played it for several years when I was younger. I had never really considered that maths would have a part to play in field hockey and simply just thought about playing rather than the maths behind it. What I found in an online article by Tohi (2016) surprised me!

Field hockey teams usually consist of 16 players, 11 on the field and 5 reserves.

On the field, there are usually:

  • 3 strikers: left wing, centre forward and right wing
  • 3 mid-fielders: left half, centre half and right half
  • 5 defenders: left full back, sweeper, centre back, goal keeper and right full back

Design of Field, Ball and Stick

A hockey field forms the shape of a rectangle, the length being 91.4m (100 yards) and width being 54.8m (60 yards). The design on a hockey field holds the following geometrical figures- 10 parallel sets, 16 right angles and 2 semi-circles. The hockey field is also divided into 4 sections; these four sections form smaller rectangles that are about 22.8-22.9m long. The line segments that separate the field are all parallel to each other and perpendicular to the point where they meet the side of the field.

The ball used to play hockey is a perfect sphere, so when passed it will go in the direction it was hit. The hockey stick, when it comes into contact with the ball is tangent to the circle at the point where it meets. The more force that you use to hit the ball, the farther it will go, so by determining the velocity of your hit you can decipher the distance the ball will travel.

It is also important to consider the weight of the stick and ball to ensure that the ball is not too light that a slight tap will send it way down the pitch but not so heavy that it requires a great force to move the ball. The stick should be quite light to allow players to use it with ease.

Positioning

When trapping a hockey ball, a player’s stick must be at a 120 degree obtuse angle when first moving the stick in a motion to meet the ground. This specific angle helps the player have more control over the ball when first stopping it; it also gives the players more time and skill to continue playing.

When hitting the ball, a player must position their body at a correct angle. If the knees aren’t bent enough and the angle is too large, the stick won’t reach the ball, however, if the player’s knees are bent too much, and the angle is too small- the player will more than likely take a chunk out of the field (if grass) or hit the field instead of the ball (if astro).

In addition to this, if a player swings their stick and the follow through has an angle measure greater than 90 degrees, the player will get called, making the other team now have possession of the ball.

Pythagoras’ Theorem in Triangle Passing

Pythagoras’ Theorem relates to field hockey through the triangle passing in the sense that three hockey players can successfully eliminate their opponent through correct distance measurements.

For example, if player A is 7m from player B, and player B is 5m from player C, how far should player C be from player A in order to successfully perform a triangle pass?

c²=b²+a²

c²=7² + 5²

c²=49 + 25

c²=74

c=√74

c=8.6m

Clockwork Structure

A clock’s structure relates to a hockey player’s tackling structure in the sense that a player is able to successfully tackle their opponent through the following:

  • 2 o’clock
  • 3 o’clock
  • 9 o’clock
  • 10 o’clock

However, in this sense, the stick must be positioned at an acute 80 degree angle in order to keep the ball connected to the ground with force and strength behind the hockey stick.

A player’s feet must be parallel or facing in outward 30 degree angles in order to maximise extra force and knees bent at a 120 degree angle.

From this type of geometry and maths behind positioning, a player is able to attain success in tackling.

Time

As with most sports, time is crucial. It is needed to ensure that the game lasts for the set time. A collegiate field hockey game is divided into two halves each lasting 35 minutes in length. Half time lasts seven minutes. At half time, the teams switch playing sides. If a game is tied at the end of regulation, there will be two seven-minute periods of play.

 

It is evident that mathematics appears a lot in field hockey and there are likely more ways in which it features that I am not yet aware of. This is the same for many sports and I believe that it is important that we begin to explore these aspects with children. It not only relates maths to their world but also may be a topic of interest for many children helping to inspire them and show them that maths is not just within the classroom.

 

Tohi, K. (2016) Maths in Field Hockey. Available at: https://prezi.com/3mk2gu_u74ph/maths-in-field-hockey/ (Accessed: 8 November 2017).

Can Maths be Fun?

 

Many people scrunch up their face or roll their eyes when they think of maths, many believe that it is boring. I reckon it does not have to be that way- maths can be fun! I believe that we as teachers need to liven up the idea of maths and bring in cross curricular learning as well as looking at learning mathematics through play.

Liping Ma (2010) believes in four factors in teaching mathematics- Interconnectedness, Multiple Perspectives, Basic Ideas (or Principles) and Longitudinal Coherence. Above these, he believes that teachers must have a ‘profound understanding of fundamental mathematics’. Without a doubt, it is essential that as teachers we know the ins and outs of what we are teaching before we can expect children to understand it. We need to have a confidence when teaching mathematical concepts or else children will pick up on it, lack confidence in our teaching and will likely end up confused.

Interconnectedness is when links are made between different concepts such as adding and subtracting. Research has found that children learn better and show a greater understanding when these links are made. If a child is able to make a link to another concept, they are more likely to remember that process and also apply that skill to a new process e.g. they know that subtracting is the opposite of adding.

Multiple Perspectives simply means that pupils are able to approach problems in many ways i.e. there is more than one method and solution. This means children are not limited to one method and are able to choose whichever process they prefer, allowing an aspect of flexibility.

Early mathematics is about the basics. If children are not taught the basics, how on earth are they going to be able to develop more complex mathematical skills and solve more complex problems?

Longitudinal Coherence is similar to the basic principles as what is taught now will act as a base for future learning. It is about how maths links together and concepts require previous knowledge in order to comprehend them (Ma, 2010).

Research has shown that previous traditional teaching methods have not been successful as when adults were asked to explain how to solve particular problems and why we need certain mathematical concepts, they were unable to recount their learning. These rote and drill teaching methods such as handing pupils a page of calculations to complete has been referred to as shallow learning as it did not make complete sense to pupils. Parents and teachers are now worried that the maths that parents pass onto their children is not solid and accurate yet it is crucial that parents play an active part in the mathematical learning of their children particularly during the early years (Valentine, 2017). It is important for maths to be a continuous part of the home environment through aspects such as time (for cooking), money (bills) and telling the time to help encourage the learning.

The National Scientific Council on the Developing Child recognises that child development is crucial to the future success of society. They believe that the core developmental concepts are “cognitive skills, emotional well-being, social competence, and sound physical and mental health” (Valentine, 2017). This cognitive development includes the ability to think, reason, understand and learn- all of which are crucial skills in maths. They stress the importance of developing these aspects in the early years through stimulating learning environments, nurturing relationships and engaging social interactions which should involve play (Valentine, 2017).

Piaget (1936) believed that children learned best through discovery and that development of cognitive abilities was in set stages in which only certain aspects could be learned during that period. He felt that children could not move on to the next stage until they had become expert at the stage they were currently operating in. To Piaget, cognitive development was a progressive reorganization of mental processes as a result of biological maturation and environmental experience. Children construct an understanding of the world around them, then experience discrepancies between what they already know and what they discover in their environment (Valentine, 2017). 

In early years, pupils will be introduced to adding, subtracting, multiplying and dividing using concrete materials such as blocks, cubes and linking elephants. Only once they have mastered the ability to physically use these materials to do calculations will they move on to using numerals and operations to describe calculations and then doing calculations without the concrete materials. This is generally the time where children who struggle with mathematics first encounter difficulties, moving from the concrete to the abstract (Valentine, 2017).

The four stages are outlined below:

Sensory motor stage (birth to 2 years): The main achievement during this stage is object permanenceknowing that an object still exists, even if it is hidden. It requires the ability to form a mental representation (i.e. a schema) of the object.

Pre-operational (2-7 years): During this stage, young children are able to think about things symbolically. This is the ability to make one thing – a word or an object – stand for something other than itself.  Thinking is still egocentric, and the infant has difficulty taking the viewpoint of others.

Concrete Operational (7-11 years): Piaget considered the concrete stage a major turning point in the child’s cognitive development, because it marks the beginning of logical or operational thought.

This means the child can work things out internally in their head (rather than physically try things out in the real world).

Children can conserve number (age 6), mass (age 7), and weight (age 9). Conservation is the understanding that something stays the same in quantity even though its appearance changes

Formal Operations (11+): The formal operational stage begins at approximately age eleven and lasts into adulthood. During this time, people develop the ability to think about abstract concepts, and logically test hypotheses (Piaget, 1936).

Margaret Donaldson believed that it was stupid to expect children to learn in unfamiliar environments, therefore, implying that children should learn mathematics through play in order to make sense of concepts and achieve great things. Lev Vygotsky was of a similar mindset and believed that learning must be done through social interaction which aids the development of learning. Friedrich Froebel viewed play as the work of the children and considered it the time when children did their best thinking. He was a firm believer in using play to develop mathematical concepts (Valentine, 2017).

Children begin to develop many mathematical skills and concepts before even entering the classroom. They encounter mathematics inside their own homes through daily routines and play e.g. the concept of big and small, empty/full, the concept of sharing and knowing what time of day it is. Another interesting one is recognising the number of things in a small group without actually counting them- a concept which was explored during the ‘Can Animals Count?” input. We discussed an experiment which took place in New Zealand where 11 worms were placed in one nest and 12 in the other. The robins were able to recognise that the nest with 12 was the best option. Some believed that this proved that robins can count, however, I believe that it show they can recognise a difference in quantity just like children can without actually counting- a process known as subitising (Valentine, 2017).

Play is important because it is a major part of children’s everyday world- for them it is a familiar environment, resulting in more successful learning as it is a meaningful context. Furthermore, play helps them to develop social skills such as sharing e.g. they can use maths in a role play situation e.g. play shop. Play also allows children to learn in their own time and be independent learners. They are able to control what happens during their learning and the outcomes of it. By using play to learn maths, children are able to visualise their learning instead of using a textbook e.g. use of 3D shapes. Play allows children to experiment in a relaxed environment where making mistakes is not an issue and written outcomes are not a focus.

There are many forms of play which can be used for learning. These include symbolic, creative, discovery, physical, technology, games, environmental and books and language. Activities may include rhymes, outdoor play, songs and role play. We looked at a video on maths in literature where mathematical concepts were used in traditional fairytales and stories such as Goldilocks and the Three Bears which changed to Goldilocks and the Three Squares. Something as simple as this is a great way to introduce children to basic concepts in maths.

It is important that children are able to shape their own learning and play. They should be learning through play in ways that suit them and meet their interests and needs. It is likely assumed that children do not learn much during play. This is clearly untrue, they develop their decision making, imagination, prediction, reasoning, planning and experimenting skills (Valentine, 2017). So to answer the original question- Yes, I believe maths can be fun if taught in the appropriate ways!

Ma, L., (2010) Knowing and teaching elementary mathematics (Anniversary Ed.) New York: Routledge.

Moseley, C. (2010) Cherri Moseley- bears and squares…. Available at: https://www.youtube.com/watch?v=u_ywN-4YlRU (Accessed: 4 November 2017).

Valentine, E. (2017) ‘Maths, Play and Stories. [PowerPoint Presentation]’. ED21006: Discovering Mathematics (year 2) (17/18). Available at: https://my.dundee.ac.uk/ (Accessed: 4 November 2017).

Can Maths be Creative?

I personally believe that often in today’s world we can limit the idea of maths to calculations, equations and many hours of working things out. We don’t take time to consider just how complex and essential this subject is. Hom (2013) describes maths as “the science that deals with the logic of shape, quantity and arrangement”. It is not just something we do in a textbook to pass time, it can be applied to the real world and is the “building block” in all we do (Hom, 2013). It is all around us- in nature, music and photography.

Have you ever looked around at the beauty of creation and thought just how wonderful it is how everything comes together? How each hexagonal structure in honeycomb is so perfect and they all fit together? Or how symmetrical a butterflies wings are? How about the enormous amount of detail in a sunflower? A huge amount of maths is within this. I live near the Giant’s Causeway and have visited it too many times to count yet without fail every time I go I am always mesmerised by how the hexagonal rocks all fit together to form such a beautiful tourist spot. With Eddie, we looked at the art of a tessellation and the level of maths required to produce one. As the shapes need to fit perfectly together with no gaps or overlaps, you must consider the shapes you use e.g. you cannot use a pentagon by itself. The regular shapes that do tessellate are: squares, hexagons and equilateral triangles. All triangles and quadrilaterals also tile but they are not ‘regular’ shapes and you often have to rotate them to make them fit together. These shapes are, however, congruent, which means they are the same size. These congruent, irregular shapes make the monohedral tessellations (Valentine, 2017).

Tessellations of congruent shapes, such as above, are called monohedral tessellations. The word monohedral literally means ‘one’ – mono and ‘shape’ – hedral. Regular tessellations are made up of only one regular shape repeated, whilst semi-regular tessellations are made up of two or more regular shapes tiled to create a repeating pattern. A lot of Islamic art uses tessellations of equilateral triangles, squares and hexagons. Furthermore, in Spain there are many examples of art in tiling such Park Güell in Barcelona.

Interestingly, a family friend of mine is very involved with training teachers in mathematics and has created a course about learning mathematics through patchwork (Brown, 2017). I think this is an excellent idea. Not only is it creative and involves maths but is something that the children could make a mini version of to take home or make as an entire class for a display. This would be something for children to be proud of and they could feel a sense of achievement once completed. It would be a good cross-curricular link. I would consider this idea for an upper years class due to the materials required. It has inspired me to think of an activity for younger pupils where they can stick pieces of fabric onto paper to create their own tessellations.

Here is what my group came up with:

                           

The Fibonacci sequence has a huge part to play in the formation of sunflowers. This is a sequence made up of numbers where each number is determined by adding together the previous two numbers. For example- 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89 etc. Some scientists and keen beans on flowers have counted the seed spirals in a sunflower to confirm that it was indeed made up of the Fibonacci sequence. This is very common across a lot of plants and flowers and is actually why finding a four-leaf clover is considered so lucky as there are so few! Scientists believe that flowers form this way as it is the most efficient way to do so- they can “pack in the maximum number of seeds if each seed is separated by an irrational-numbered angle” such as Phi or the golden ratio (Life Facts, 2015). We looked into this a bit further with Anna Robb by dividing the length of our rectangles for the golden spiral by the width which came to a number very close to Phi (1.618…). The following video explains what we did in class (Graff, 2014).

Snowflakes are another example of maths in nature. They exhibit six-fold radial symmetry, with elaborate, identical patterns on each arm. Snowflakes are made entirely of water molecules which have solidified and crystallised to form weak hydrogen bonds with other water molecules. The bonds maximise attractive forces and reduce repulsive forces, allowing the snowflake to form its hexagonal shape (Life Facts, 2015). Isn’t it amazing how no two snowflakes are identical yet every snowflake is completely symmetrical? I wondered how this could happen and Life Facts (2015) gave me an answer- As no two snowflakes fall from the sky at the exact same time, they experience unique atmospheric conditions such as wind and humidity. This means that there is a different effect on every snowflake and how the crystals form. Each arm of the snowflake goes through identical conditions and therefore crystallises in the exact same way, resulting in a symmetrical snowflake.

During my placement in first year, I decided to do a lesson on how to draw a compass rose with Primary 6. This involved a lot of angle work to ensure that each point was at an equal angle to ensure the whole compass shape would work. It also involved consideration of the radius of circles and how to use a compass and ultimately the idea of direction. I found it quite a complicated lesson to teach as it required a high degree of accuracy which some of the children struggled with as many of them had not used a compass before. Furthermore, the whole class had only looked at using a protractor to measure and draw angles for the previous two lessons so lacked experience. I am, however, glad that I used this as a lesson as it was interesting and the children enjoyed the link between maths and art to produce their own compass. Here is the link to the process of drawing a compass rose (https://www.wikihow.com/Draw-a-Compass-Rose) and a photo of my final product.

Maths is even required in photography. Many photographers use the ‘Rule of Thirds’ to set up their photos. This is where the image in broken down into 9 sections using 4 lines. The idea is that if you capture an image where the main object/focus is placed along the lines or the intersections, the photo will be more natural and pleasing to the viewer instead at the centre of the shot (Rowse, no date). Another method photographers use is balancing elements. This is similar to the rule of thirds and is simply placing a focal point off centre to create a more interesting image, however, this means there is empty space at the opposite side. This is where balancing elements comes in- you place another similar object at the other side to balance the photo out- known as formal balance. Informal balance is when you place two varying objects at opposite sides of the image (Google, no date). Leading lines are another method used in photography in which straight objects such as roads are used to draw the viewer’s eye to the image and connect the foreground to the background (McKinnell, no date). The final method photographers use is symmetry and patterns within photos to create a balanced and aesthetically pleasing image (DMM, no date).

It is clear that maths is not just limited to textbooks, endless calculations and equations, it goes much further into the world of creative arts. I believe that more mathematical links need to be made within the classroom in subjects such as art to help child to explore all that the wonderful world of maths has to offer.

Brown, J. (2017) Learning Mathematics through Patchwork, 8 October 2016. Available at: https://www.linkedin.com/pulse/learning-mathematics-through-patchwork-jill-brown?trk=mp-reader-card (Accessed: 8 November 2017).

DMM (no date) How to Use Symmetry and Patterns in Photography. Available at: http://www.digimadmedia.com/blog-how-to-use-symmetry-and-patterns-in%20photography (Accessed: 4 November 2017).

Google (no date) Balancing Elements. Available at: https://sites.google.com/site/photographycompositionrules/balancing-elements (Accessed: 4 November 2017).

Graff, G. M. (2014) Understanding the Fibonacci Spiral. Available at: https://www.youtube.com/watch?v=8A3JnWzgXGk (Accessed: 4 November 2017).

Hom, E. J. (2013) What is Mathematics?. Available at: https://www.livescience.com/38936-mathematics.html (Accessed: 4 November 2017).

Life Facts (2015) 15 Beautiful Examples of Mathematics in Nature. Available at: http://www.planetdolan.com/15-beautiful-examples-of-mathematics-in-nature/ (Accessed: 4 November 2017).

McKinnell, A. (no date) How to Use Leading Lines for Better Compositions. Available at: https://digital-photography-school.com/how-to-use-leading-lines-for-better-compositions/ (Accessed: 4 November 2017).

Rowse, D. (no date) Rule of Thirds. Available at: https://digital-photography-school.com/rule-of-thirds/ (Accessed: 4 November 2017).

Valentine, E. (2017) Maths, creative? – No way! [PowerPoint Presentation], ED21006: Discovering Mathematics (year 2) (17/18). University of Dundee. 26 September.

Mathematics- A Subject of Worry or Comfort?

Mathematics. One word with so much importance and relevance. One word which can either bring extreme fear or excitement. One word which is needed in society everyday yet so many people are overwhelmed when they hear it. What feeling fills you when you hear someone say “mathematics”? Does your mind fill with random equations you learned in high school but have never actually used in real-life? Or does it get ready and excited to discuss such a topic? Does your heart start racing as you think of all the exams you sat and the horrible memories come flooding back?

For me, hearing it brings back good memories of hours of enjoyment in maths class in school. Mathematics was always one of my favourite subjects at school and something I excelled at whilst enjoying the sense of finding a solution to the problem. Whilst I did find it hard at times as I got into the more complex parts of it, I always found it more enjoyable than English lessons. However, I will admit that I do have some worries over teaching maths. I think it can be so easy to think “Awk teaching primary school maths- easy peasy lemon squeezy” especially if you took maths to a high level in school. Knowing maths and teaching it are two different things and whilst knowledge of the subject is important when teaching it, teaching strategies are also crucial. This is where I feel a sense of anxiety over it. It is also why I chose the “Discovering Mathematics” module for this semester in order to improve my confidence for placement and future teaching.

Not all maths difficulties are a result of cognitive difficulties, sometimes it is down to anxieties over maths (Nuffield Foundation, 2017). This is why it is important to break down those anxieties and try to get rid of them as best as we can. Maths anxiety usually comes from your learning experience and a lot of it is down to your teachers e.g. if you had a horrible teacher who forced you to do calculations upon calculations and did not maintain a positive approach when you made mistakes. This in turn can impact pupils’ growth mindsets and change them into ‘fixed’ mindsets (Dweck, 2010). When pupils believe that they are not able to make progress and overcome past mistakes, they may begin to dislike that particular subject and develop worries over doing it in the future. Dread can fill their minds when they see another maths equation that they believe they can’t solve. We need to change the way pupils and parents think about maths and minimise the myths such as “it is a boy subject” (University of Alabama, no date).

I believe it is important to remember that maths is not just sitting down and doing calculations and solving problems, it is used every day in the world around us. As someone who does not have maths anxiety and enjoyed it, I aspire to be a teacher who does everything they can to destroy any anxieties pupils may have over doing mathematics. I want children to see that maths is not just sitting and doing questions from a textbook, it is a land of discovery which opens doors to new and exciting opportunities (Kendriya Vidyalaya, 2015). This is ultimately my aim for the end of this module. I want to reduce my own anxieties about teaching maths in order to help limit pupils’ anxiety over learning it.

 

Dweck, C. (2010) What is Mindset. Available at: https://mindsetonline.com/whatisit/about/ (Accessed: 1 October 2017).

Kendriya Vidyalaya (2015) The Importance of Maths in Everyday Life. Available at: https://timesofindia.indiatimes.com/city/guwahati/The-importance-of-maths-in-everyday-life/articleshow/48323205.cms (Accessed: 1 October 2017).

Nuffield Foundation (2017) Understanding Mathematics Anxiety. Available at: http://www.nuffieldfoundation.org/understanding-mathematics-anxiety (Accessed: 1 October 2017).

University of Alabama (no date).  Math Myths.  Available online at: http://www.ctl.ua.edu/CTLStudyAids/StudySkillsFlyers/Math/mathmyths.htm (Accessed: 1 October 2017).