Euclid's Elements

Euclid's Elements is a set of 13 books written by the Greek mathematician Euclid over 2000 years ago! It's about geometry and how it works, and it's still used today. Basically, Euclid's Elements teaches us about how to draw shapes and measure them in different ways, like angles and lines. It also teaches us how to add, subtract, multiply and divide numbers. Euclid's Elements was one of the first books that some people used to learn math.