This provocative volume from one of the nation's leading educational think tanks presents in-depth portraits of teachers, professional development staff, and researchers working together to deepen teacher's professional capacities and students' learning experiences. Ranging across subject areas and grade levels, The Diagnostic Teacher describes a variety of powerful classroom and school-based strategies that help students achieve and teachers thrive. The result is a rich and inspiring blue-print for how school leaders can revitalize the profession of teaching, while developing more inquiry-oriented, constructivist classrooms.