In this important new book for pre- and in-service teachers, early math experts Douglas Clements and Julie Sarama show how 'learning trajectories' help teachers become more effective professionals. By opening up new windows to seeing young children and the inherent delight and curiosity behind their[...]

This important new book synthesizes relevant research on the learning of mathematics from birth into the primary grades from the full range of these complementary perspectives. At the core of early math experts Julie Sarama and Douglas Clements's theoretical and empirical frameworks are learning tra[...]