MaKey MaKey is an invention kit for the 21st century. Turn everyday objects into touchpads and combine them with the internet. It's a simple Invention Kit for Beginners and Experts doing art, engineering, and everything inbetween:
One of my foundational rules of classroom engagement is simply this: never be the first one to open your mouth and start talking about any topic. Twenty years in the classroom taught me that one. Never assume. Never take prior knowledge for granted. Listen first, then act. Never presume to know what the students in front of you are capable of. They'll show you if you are bold enough to listen.