Gain familiarity with mathematical and computational ideas, using Scratch

Scratch is designed to help young people (ages 8 and up) develop 21st century learning skills.

As they create Scratch projects, young people learn important mathematical and computational ideas, while also gaining a deeper understanding of the process of design.

Scratch is a new programming language that makes it easy to create interactive stories, animations, games, music, and art – and share these creations on the web.

Scratch is a great and free project you may like to check.