For ages 5 and older. Archimedes was a mathematician who lived in ancient Greece more than 2,000 years ago. He was fascinated by shapes. One thing he liked to do was play a game called Stomachion.

Save guides, add subjects and pick up where you left off with your BBC account. Two-dimensional (2D) shapes are completely flat. They cannot be picked up. 2D shapes can be found printed in a book ...