This activity investigates how you might make squares and pentominoes from Polydron.
If you had 36 cubes, what different cuboids could you make?
How can you put five cereal packets together to make different shapes if you must put them face-to-face?
How many symbols could you send altogether using semaphore? If one hand is at the 7 o'clock position, how many other places could the other hand be in?