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 challenge.
How can you put five cereal packets together to make different shapes if you must put them face-to-face?
Take a square of paper, fold it in half from corner to corner and cut along the fold.
Take one of the triangles, fold it in half and cut along the fold.
Use the three pieces to make a large triangle, a parallelogram and the square again.