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?

Fifteen Cards

Stage: 2 Challenge Level:

Remember that there is only one of each number from $1 - 15$.

You can download a set of cards numbered $1 - 15$ here.

How will you remember which combinations you have tried?