This blog details the power of the Great Lessons, and a new course that Michael Dorer has put together on them,
The Assembly Line (Classroom Simulation)
Simple Machines and Spear Throwing: The Atlatl
Free Lesson Plan for the 4th of July! American Townball (the Ancestor of Modern Baseball)
Wicket (Cricket played by the American Revolutionists)
The Atom Workshop
This blog about the Atom Workshop, a series of lessons to teach your upper elementary students basic chemistry principles.