The primary goal of the Unplugged project is to promote Computer Science (and computing in general) to young people as an interesting, engaging, and intellectually stimulating discipline. CS Unplugged is a collection of free learning activities that teach Computer Science through engaging games and puzzles that use cards, string, crayons and lots of running around. We originally developed this so that young students could dive head-first into Computer Science, experiencing the kinds of questions and challenges that computer scientists experience, but without having to learn to program first.