# Monthly Archive: November 2012

## Surface area of spheres- an apeeling lesson…

How do you give pupils a beautiful visual picture of why the surface area of a sphere is 4 pi r squared? A super lesson idea I heard recently involved an orange! Give pupils an orange and a blank sheet of paper. They have to draw circles around the orange onto the paper. The idea is that the circles on...

## The beautiful math of coral- Margaret Wertheim

A super TEDEd video: The beautiful math of coral- Margaret Wertheim

## How algorithms shape our world- Kevin Slavin

Another maths related TEDEd video: How algorithms shape our world- Kevin Slavin

## Bob’s Misadventures in Maths- Episode 1- Internet Security

“Why are prime numbers useful Sir?” Now you have your answer…

## Angles in parallel lines colouring fun

I want to give my current GCSE year 10 class more practice on identifying angles in parallel lines; alternate, corresponding and co-interior. I have put together the following worksheet that gets them to colour each type of angle a particular colour. Please feel free to use it with your own classes if you like it! Download the worksheet by clicking...

## “What’s the point of algebra?”

How many times have you been asked “what’s the point of algebra?”? I feel like I have never had a good answer to this question that is relavent to the kids and their lives. Let’s find out what Great Maths Teaching Ideas’ readers think! Do you have a good answer to this question that will satisfy the kids? If so,...

## All Edexcel past papers in one free app…

Edexcel have released an iOS app that allows anyone with an Apple device to download past exam papers, markschemes and even examiner’s reports. The app is free and covers the full Edexcel currciulum, not just maths. Within our subject you can download past papers that cover both the modular and linear specifications for the last decade. Whilst this brings convenience...

## App shout out- 5 Dice

Justin Holladay wrote to me recently explaining he was just about to release his first app. It’s now gone live in the Apple Appstore and can be downloaded for free onto any iOS device. The app is a game based on using the scores when you roll five virtual dice to create BIDMAS calculations that equal a certain target number....

## Expand and simplify single brackets- matching pairs

A matching pairs activity for those ‘expand and simplify’ questions… Click here to download