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.
If you had 36 cubes, what different cuboids could you make?
You need to be systematic.
Try with a smaller number of cards first or using two sets of cards one to help you keep your "magic" cards in the correct positions.