Analyzing the development of children’s thinking: a review of “learning and teaching early math: the learning trajectories approach”Clements, D. H., & Sarama, J. (2021). Learning and teaching early math: the learning trajectories approach. New York, N.Y: Routledge, 488 pp. ISBN: 9780367538552 (hb) $160, ISBN 9781003083528 (e-book) $55.20