Sarama and Clements’ landmark book provides a comprehensive review of psychological and educational research leading to new insights into young children’s mathematical learning and how it can be fostered. The authors’ learning trajectories approach blends a research-based appreciation of the developing child’s mathematical mind with practical educational goals and methods. The book is essential reading for all those with a deep interest in promoting an effective and enriched approach to early childhood mathematics education.

-- Herbert P. Ginsburg, Jacob H. Schiff Foundation Professor of Psychology and Education, Department of Human Development, Teachers College Columbia University