Throw out gradebooks and meet the assessment system of the future! Mark Barnes's formula for feedback, titled SE2R (Summarize, Explain, Redirect, Resubmit), has delivered stunning results to the forward-thinking schools that have tried it. The method in this book will loosen and then break your classroom's dependence on the "A-through-F" grading system that does little more than silence student voices. Delving into...