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Catrina's Cards
Triangle or No Triangle?
Birthday Sharing
Name That Triangle!
The Remainders Game
Magic Crosses
Remainders
Ways of Showing
Ways of Showing
If you're curious about why something works, it can really help to find different ways of showing (or representing) your thinking. For example, you might draw a picture or use some equipment. The problems below will give you chance to think carefully about different representations, whether they are created by you or by someone else.
Catrina's Cards Age 5 to 7Challenge Level 
Age 5 to 7
Challenge Level
How would you find out how many football cards Catrina has collected?
Triangle or No Triangle? Age 5 to 7Challenge Level
Age 5 to 7
Challenge Level
Here is a selection of different shapes. Can you work out which ones are triangles, and why?
Birthday Sharing Age 5 to 7Challenge Level
Age 5 to 7
Challenge Level
It's Sahila's birthday and she is having a party. How could you answer these questions using a picture, with things, with numbers or symbols?
Name That Triangle! Age 7 to 11Challenge Level
Age 7 to 11
Challenge Level
Can you sketch triangles that fit in the cells in this grid? Which ones are impossible? How do you know?
The Remainders Game Age 7 to 14Challenge Level
Age 7 to 14
Challenge Level
Play this game and see if you can figure out the computer's chosen number.
Magic Crosses Age 7 to 14Challenge Level
Age 7 to 14
Challenge Level
Can you find examples of magic crosses? Can you find all the possibilities?
Remainders Age 7 to 14Challenge Level
Age 7 to 14
Challenge Level
I'm thinking of a number. My number is both a multiple of 5 and a multiple of 6. What could my number be?
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