Book excerpt: "Throughout history education systems have strived to help teachers be as effective as possible in order to help students learn as much as possible. However, these teacher evaluation efforts have long been unhelpful in the pursuit of teacher development. Reflecting on, Observing, and Coaching Teaching presents a case for the necessity of effective teacher evaluation in the name of strong teacher development. Authors Robert J. Marzano, Cameron L. Rains, and Philip B. Warrick provide in-depth background research on the history of teacher evaluation, strong cases for the necessity of an intertwined evaluation and development system, as well as specific suggestions for improvement in both fields. Teachers should not be interchangeable parts. They should be vital cogs in an educational machine who each fill their niche as effectively as possible, and this book serves that end"--