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This activity investigates how you might make squares and pentominoes from Polydron.


Make a cube out of straws and have a go at this practical challenge.

Cereal Packets

How can you put five cereal packets together to make different shapes if you must put them face-to-face?

Triangular Faces

Age 7 to 11 Challenge Level:

You might find it helpful to print off this sheet of coloured triangles and cut them out.
Can you begin to picture in your mind what the shape will look like?
Try joining two triangles together to start with, then add another one on, then another etc.
Don't be afraid to take apart what you've done to alter it if you discover something isn't quite right.
You could begin by joining the triangles together loosely with a small piece of sticky tape so you can easily cut them apart again if you find you want to change your mind.

This sheet will show some triangles with tabs on for joining in 3D.