Educators devoted to school reform focus all too often on the isolated components of K-12 education--this is the essential premise of this powerful new book. If we are truly committed to improving our schools, the author contends, then we must focus on the interdependence of variables that affect student learning, both inside and outside the classroom. The book is divided into three distinct parts. In Part 1, Danielson introduces the Four Circles Model to define the criteria for successful school improvement: Everything educators do to help their students learn must be based on what educators...