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?
Two passenger trains with four carriages each are facing each
other on the main line, with a siding branching off between them.
The siding is only long enough to fit one engine and two carriages.
What is the best way to shunt the carriages so that each train can
continue its journey?