Make a cube out of straws and have a go at this practical
Reasoning about the number of matches needed to build squares that
share their sides.
How can the same pieces of the tangram make this bowl before and after it was chipped? Use the interactivity to try and work out what is going on!
The image below is part of a piece of equipment found in the playground of a London school.
Try to draw a picture of the whole structure from the information you have.
You might also like to make a model of it and shine a light onto it to reproduce all the shadows.