I don't know if any of you have read the New York Times former bestseller Drive by Daniel H. Pink. This book examines what works and doesn't work when trying to motivate people. It focuses how many of us can be motivated intrinsically without a large emphasis on external rewards much of the time. It does share though when external rewards are most effective and when they are least effective in helping improve performance. I highly recommend this book to any teacher or anyone who deals with students at any age.