Behind a simple equation, 2 + 2, lies a rich yet realistic approach to enhancing teaching and learning. As this book demonstrates, the current method of job appraisal consists of sporadic classroom visits from school administrators that frequently serve to reinforce teacher isolation rather than promote professional development. In contrast, the 2 + 2 method, a practice where teachers visit each other's classrooms long enough to provide two compliments and two suggestions for improvement, has not only been proven to enhance teaching skills and student learning, but has also increased job satisfaction by reviving productive teacher collaboration. Through the presentation of detailed case studies that illustrate the authors' actual experience implementing the program at an inner city school, this work chronicles how the 2 + 2 method: (1) restores the vital connections between teachers and students, teachers and administrators, and teachers and teachers; (2)encourages teaching and learning to develop beyond what standardized tests reveal; (3)provides a low-cost, easy-to-implement program that is realistic, given teachers' time constraints and limited school budgets; and (4) transforms schools into cultures of collaborative teaching and learning. The 2 + 2 program is much more than a simple equation; it is a powerful tool that can revolutionize a school's approach to teaching and learning. Following a Foreword (David C. Berliner), Prologue, Acknowledgments, and About the Authors, this book is divided into ten chapters: (1) The Performance Appraisal Paradox; (2) The Fine Art of Feedback: An Interlude; (3) What Is 2 + 2 Anyway?; (4) The Feedback Dilemma; (5) The 2 + 2 Pilot; (6) 2 + 2 Takes Shape; (7) 2 + 2: A Matter of Leadership; (8) 2 + 2 Takes Off (9) Beyond the 2 + 2 Basics: A Second Interlude; and (10) Institutionalizing 2 + 2. An Epilogue, Frequently Asked Questions, and an Index are included.