Arvind Gupta is a one-of-a-kind presence in the world of science education. He has established a worldwide reputation for his remarkable ability to take literal junk and turn it into elegant, delightful toys for teaching science and design.
The link below (the TED site's embed code doesn't work) is to an incredibly inspiring and informative TED talk he gave in 2010. It's well worth the fifteen and a half minutes of your time to watch.
Incidentally, Arvind Gupta has graciously given CSL permission to repost some of his projects on our blog, so watch for some of those in the future.