## Beach Clean 2019

On Thursday 21st March the whole of Port Ellen Primary School went down to the co-op beach for a beach clean.  There was also people from high school to help, they where the John Muir group, and also ReJIG.  Before everyone went we got put into groups of 5. There was 10 groups. I got paired with Chloe, Katy, Christopher and Phoenix.  P67 had created a survey so we could find out what the different types of plastic were that we foundon the beach.  There were lots of small bits of plastic between 2.5 and 50cm long, but the biggest plastic pollutant was ropes and nets from fishing boats.  You can see the results in the graph below.  We collected 2 bags full of rubbish, lots of it was plastic. Altogether the school got 900 bits of plastic rubbish off the shore. When we left all the beach had was sand and seaweed.

## Scottish Math Challenge Success

The Scottish Math Challenge is something that P6/7 have the chance to do every year.   You get a set of three questions one in November, one in December and the final one in January. If you get up to 29 points that is a bronze 30 points that is a silver and if you get 33 points that is a gold. I got 32 points and that means that I got a silver which means that I get to go away to get an award and I was really pleased to get this and I want to keep on pushing myself further in STEM. Everyone else who took part in our class got a bronze.  It is really important to know how to do some equations because it could help in a well paid job like being an engineer.

By Matthew Campell

## Paper Bridge Engineering

As part of our Engineering project this year we wanted to show we could get better at engineering.  At the start of the project we had to build bridges, and ours were made from straws and did not work well or hold a lot of weight.  We did the bridge building test again to see if we had improved, but this time we were only allowed to use paper to build our bridges. The point of it was to try and engineer a bridge that could hold a calculator, at first it was quite hard to make a bridge that could hold one. Me and Rowan decided to apply what we had learned in maths about 3D shapes and  put cylinders under our bridge so that it could support the weight of a calculator, a lot of the bridges ended up being able to support a lot more than a calculator. Our bridge managed to hold 6kg in weight!  I was surprised that it could hold that much because it was just paper and tape, eventually we over tested it and wrecked the cylinders on the bridge. Everyones bridge could hold at least a calculator and some bridges could hold more, our bridge could hold the most in the class which I was surprised about. We applied our engineering knowledge to building the bridge and this showed how much we improved!

By Holly

## Scottish Maths Challenge Success!

Every year Mrs Clark’s class take part in the Scottish Maths Challenge, a competition where you have to complete tricky maths problems that require you to think outside the box.  It is a great way to improve your maths problem solving skills and learn to apply strategies to help you work out the answers.  Children can opt to take part in the challenges, and there are three sets of questions over the year. One of the questions this year was:

Colin and Tom are on a camping holiday and, at their campsite, they make friends with Fiona. They ask her when her birthday is but, being a bit of a joker, Fiona tells them only that it is one of the following;

May 14, July 12, May 15, May 18, June 16, June 19, July 15, August 12, August 14, August 16.

She then tells Colin the month of her birthday, but not the day in the month, whilst she tells Tom the day in the month, but not the month.

Immediately, Colin Declares “Well Tom certainly cannot know for sure when Fiona’s birthday is.”
to which Tom replies “Ah, but now I do.” “And now I know when it is as well,” comes back Colin.

When is Fiona’s birthday? Explain your reasoning.

Quite tricky!

The children who took part have been very successful and should be proud of their perseverance and skills.  Ellie and Matthew have achieved a bronze medal and Eva, Ruaraidh, Rowan, Rebecca and Kaitlyn achieved a silver medal in the competition.  Kaitlyn and Rebecca missed out on the gold by one point!  Well done everyone.

## The Scottish Mathematical Challenge

This year pupils at Port Ellen primary school took part in the Scottish Mathematical Challenge where they had to answer problem solving questions 3 times over the year showing their working out. To get a bronze award you couldn’t lose more than 10 points, to get a silver award you couldn’t lose more than 6 points and to get a gold award you couldn’t lose more than 3 points. Rebecca, Katie, Ross and Matthew got a bronze award and I got a silver award missing out on a gold award by only one point! I feel happy because I got a silver I am also very surprised because I didn’t think my problem solving was that good. One of the questions was “Maureen, Alice and Siobhan are three young sisters, in that order of age. Alice is two years older than Siobhan. Each year, their wealthy aunt gives each of them, for each year of her age, as many pounds as she is years old. For example, on her first birthday a girl would receive one pound and on her third birthday nine pounds. The aunt has promised to continue this family custom with each girl until her twelth birthday. This year Maureen received as much as Alice and Siobhan put together.
How much will Siobhan receive next year?” I found this quite tricky.  There was also a question about a diagram that represents a rectangular net, which is made from string notted together at different points. Another one was about a diving competition where there are 5 judges that each awards a whole-number from 1-10 and you had to work out all the possible scores awarded.  It was really challenging but helped me get better at my maths problem solving.  There is an award ceremony in June in Glasgow.  Next year I will try to get a gold.

## Negative Numbers

P567 have been learning about negative numbers and how they are in temperature. The lowest temperature that negative numbers go down to is -274 degrees and positive numbers go up to infinity. We also learned that negative numbers can some times be in lifts like if there is a basement or a cellar in a hotel or a museum.It also appears in world temperature like the weather might say Paris is -1 degrees and Romania is 16 degrees and all the other countries might be different than Paris or Romania. This is what we have learned.

## Compass Points

We have been learning about compass points because it helps us with our orienteering because you need to know your compass points to get to the markers. All the compass points are north represented by an N then there is north-east represented by an NE after that there is east represented by an E then there is south east represented by a SE then there is then there south represented by an S and that is half the circle. Then on the other half of the circle, there is south west represented by SW then there is west represented W then there is north-west is represented by NW then is north again. There is a degree for each compass point which helps you to know if you’re facing the right way. When you change the degrees  to north to east or to east to south you add 45 degrees on because each turn you do you add 45 degrees. North is either 360 or 0 and north-east is 45 degrees. East is 90 because 45 add 45 is 90 degrees. South east is 125 degrees. South is 180 degrees. South west is 225. West is 270 degrees and north west is 315. Then back to north which is 0 degrees.

## Bearings

The bearing of a point is the angle measured from the north line. Bearings help you find your destination so if you are new town bearings can help you around the place.

This diagram shows compass points and the bearings plus the angles of a compass.  You can see the bearing of A from B is 065° and from B from A is 245°.

This is a triangle that is labelled a to b b to c and c to a.

A to B = South West

B to C = South East

C to A = North West

This is a hexagon labelled a b c d e f: A to B =south west

B to C= South C to D = South East  D to E = North East E to F= North F to A =North West

By Ruaraidh and Rowan at Port Ellen Primary School

## Maps, Grid References And Coordinates

There are 2 lines that are on all maps and they are called the vertical and the horizontal lines. They are always in a straight line and they either go up and down or across the way. Grid references are between the lines which make it look like a maths square that has numbers. The difference between grid references and coordinates is that coordinates are where the lines meet and grid references are in between the lines. We are learning about grid references in school and we already know six figure grid references and four figure references. Every ordnance survey map in the world has a six figure grid references and a four figure grid references for every place. We also learnt about coordinates. We played battleships to help understand grid references. We know you say the horizontal line first and the vertical line after. The horizontal line is the X axis at the bottom and the vertical line is the Y axis.

We found a map of the school and we thought it would be a good map to use for orienteering because the one we have is old and things aren’t in the same place anymore. Then we realised we didn’t have some things on the new map so we went outside and measured the things that weren’t there by how wide they are, how long they are and how far away from some things like the school and the fences area. After that we measured them to scale and put them on our map. Now we use the map to make up orienteering courses. This is the map we use and we use it to do orienteering in school.