Computer Science Unplugged is a collection of activities designed to teach the fundamentals of computer science without requiring a computer. Unplugged activities have been trialed and refined over fifteen years in classrooms and out-of-school programmes around the world.

Real computer science

The activities are focused on the principles and mathematical concepts that make computers possible. They're not about any particular hardware or software, so they can be used anywhere, and the ideas they teach will never go out of date.

And it's free!

You can download Unplugged activities as individual PDF files from their pages on this site, or download a teachers' version of the collection as a single file.

Lots more on this site.

But it's worth browsing this site. You'll find supplementary material for each activity: videos, links, photos, feedback, curiosities and more. We're also working on online games, competitions, links to curricula, and new material. Printed versions of the Unplugged material are available for purchase, and proceeds from sales are put back into the project.

Unplugged is based at the University of Canterbury in Christchurch New Zealand, with contributions from all over the world.

This website is sponsored by Google.