Scratch is a free software program from MIT which students can use to learn math concepts, tell stories, create games, and more. Karen Brennan (a member of the Scratch Team at MIT) describes Scratch as:
...a new programming language that makes it easy to create your own interactive stories, games, animations, music, and art.
Scratch is made by folks in the Lifelong Kindergarten group at MIT! (Remember Maria Knee's classroom?) The roots of Scratch go back to Turtle Logo. A variety of alternatives to Scratch are available. Download Scratch for your own computer, view projects in the Scratch gallery, and get help on:
Learn more about the Scratch programming language and its background on the English WikiPedia.