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Geoboards

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

Polydron

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

Multilink Cubes

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

Family Tree

Age 7 to 11 Challenge Level:
Making some jottings might help solve this problem.
It would be useful to talk to a friend as well!