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### Number and algebra

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### Advanced mathematics

# Right Angle Challenge

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### Watch Those Wheels

### Turning

### Being Resourceful - Lower Primary Geometry

Links to the University of Cambridge website
Links to the NRICH website Home page

Nurturing young mathematicians: teacher webinars

30 April (Primary), 1 May (Secondary)

30 April (Primary), 1 May (Secondary)

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Age 5 to 7

Challenge Level

How can you place two sticks to make just one right angle?

Now make just two right angles using the two sticks.

Can you make three right angles? Four right angles?

How many right angles can you make using more sticks?

Have you ever noticed the patterns in car wheel trims? These questions will make you look at car wheels in a different way!

Use your mouse to move the red and green parts of this disc. Can you make images which show the turnings described?

Geometry problems for lower primary that will get you thinking.