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


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?

Eight Queens

Age 7 to 11
Challenge Level

This is a famous problem: Place eight queens on a chessboard (an $8$ by $8$ grid) so that none can capture any of the others.

Remember that a queen can move any number of squares across, down or diagonally.

This is a good one to do outside with seven friends standing on an $8$ by $8$ grid!

Is there more than one solution?