This curriculum investigates how concrete, hands-on exploration can effectively build foundational mathematical understanding in young students. Mary B. Baratta-Lorton, an experienced educator, presents a pedagogical framework that prioritizes physical manipulation of objects over abstract rote memorization. The program is designed to replace or supplement standard classroom instruction for children in kindergarten through second grade.

Educators frequently cite this text as a foundational resource for early childhood mathematics instruction. Experts highlight the practical utility of the included blackline masters for teachers seeking to implement active learning environments.