""Assessment for Learning" begins with an outline and re-evaluation of Black and Wiliam's seminal review "Inside the Black Box" and their initial attempts at knowledge transfer. It then considers how the practices and processes have played out in schools and classrooms in each of the two countries over a twenty-year period, illustrating key ideas that emerged, how and why different approaches were taken up and developed by schools and teachers, and what support and directions were introduced to help the interpretation of these ideas for implementation. Each chapter calls on practice-based evidence to enrich and exemplify understanding from both research and practice standpoints and provides a "sounding board" for teachers and others to explore and reflect on their own practices and beliefs. Throughout the book, the authors use vignettes of classroom practice from both countries to illustrate Assessment for Learning in action"--