Rick Reis from the Stanford Center for Teaching and Learning, has a great newsletter called "Tomorrow's Professor". Not long ago he shared a recent article on clickers, which was an excerpt of "Teaching with Clickers" by Erping Zhu (University of Michigan, Center for Research on Learning and Teaching). While I am clearly biased towards the power of classroom interaction through Tablet PCs because they support open-ended, diagramatic feedback, clickers are much simpler and clearly have an important role to play.......