"These students are part of the Children's Innovation Project, an effort for young children to create with technology in new and meaningful ways. The project is now in its fifth year of development at Pittsburgh Allegheny K-5 in the Pittsburgh Public Schools."
"Let's say you load up a piano. Then, instead of using the computer keyboard buttons to play the piano, you can hook up the MaKey MaKey to something fun, like bananas, and the bananas become your piano keys"
This is a YouTube channel that features videos relating to various scientific, mathematical and philosophical topics. It also covers topics such as gaming, technology, culture, and other topics of general interest. Many would be good for use with classes.