This activity investigates how you might make squares and pentominoes from Polydron.
Make a cube out of straws and have a go at this practical
How can you put five cereal packets together to make different
shapes if you must put them face-to-face?
Arrange nine red cubes, nine blue cubes and nine yellow cubes into a large $3$ by $3$ cube.
No row or column of cubes can contain two cubes of the same colour.