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?
How would you make $1$p?
What do you need to do now to be able to make $2$p?
Does this help to make $3$p?