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Geoboards

This practical challenge invites you to investigate the different squares you can make on a square geoboard or pegboard.

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Polydron

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

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Multilink Cubes

If you had 36 cubes, what different cuboids could you make?

Four Triangles Puzzle

Stage: 1 and 2 Challenge Level: Challenge Level:3 Challenge Level:3 Challenge Level:3

The best thing to do is to make the triangles and try it out, or use the interactivity! (You could print this sheet onto coloured paper and then cut out the triangles.)
Does it make a difference if you turn one triangle over in any of the arrangements?
How are you making sure all your patterns are different?