"The description of episodes is effective to demonstrate to the practitioner that classrooms can involve students in doing mathematics and be more intellectually engaging."—Contemporary Psychology"This book is based on the kind of research we need. I strongly recommend Mathematics Classrooms That Promote Understanding to all mathematics educators and to anyone searching for what the twenty-first century mathematics classroom should look like."—The Mathematics Teacher"This book presents many reasoned viewpoints on developing understanding in the mathematics classroom. Because the authors have worked 'as partners with teachers and students,' this volume could appropriately serve as a springboard for further discussion on promoting mathematical understanding. The work may be particularly useful for graduate-level students and for teachers in planning lessons."—Teaching Children Mathematics