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?
On a digital clock showing $24$-hour time, over a whole day, how many times does a $5$ appear?
Is it the same number for a $12$-hour clock over a whole day?