### 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.

If you had 36 cubes, what different cuboids could you make?

# 5 on the Clock

##### Stage: 2 Challenge Level:

When does $5$ appear in the minutes display?
When does $5$ appear in the hours display?
How will you know that you have got all the different times?