Dimensions Math Pre-KB Textbook

This 116-page, full-color textbook represents the second semester (Part B) of the Pre-Kindergarten Dimensions Math curriculum, a Singapore Math-inspired program adapted specifically for American classrooms. The textbook employs the concrete-pictorial-abstract sequence, guiding young learners from hands-on exploration with manipulatives to visual representations before introducing abstract mathematical symbols. This foundational approach develops genuine number sense rather than rote memorization, with students introduced to early addition and subtraction concepts—an advanced scope for Pre-K.

Each chapter opens with an engaging scenario that establishes context for new mathematical ideas while providing opportunities to review previously learned skills. Lessons feature carefully designed imagery that supports the concrete-pictorial-abstract progression, incorporating tools like tens frames and multiple representation strategies to build flexible thinking about numbers. The textbook integrates mental math activities and games throughout, helping children develop fluency alongside conceptual understanding. Practice exercises connect to the corresponding workbook for skill reinforcement.

The curriculum requires manipulatives for hands-on exploration and works in conjunction with the separate workbook and teacher's guide. Lessons progress systematically through increasing levels of abstraction, with each concept thoughtfully developed through exploration, play-based activities, and mastery-focused practice. Chapter reviews provide ongoing reinforcement of skills and concepts introduced throughout each unit.