From Preface - Moving with Math Foundations is a standards-based curriculum designed to develop an understanding of important math concepts, strengthen number sense and improve the automatic retrieval of basic number facts needed for higher-level operations and problem solving. The program is designed around an activity-based instruction model that engages students in the learning process and a standards-based learning an assessment system that links instruction to explicit learning objectives. Multiplication and Division - Problem Solving uses hands-on activities, role-playing and games to teach the concepts of multiplication and division embracing grade-appropriate algebraic reasoning introducing students to symbols and variables in mathematical expressions and open number sentences. (Description by http-mart)