Developed by Marilyn Burns, this book helps teachers teach topics basic to elementary arithmetic instruction and developing children's arithmetic skills while teaching them to think, reason, understand and apply their skills to problem-solving situations.

All lessons are classroom-tested and can supplement any instructional program or provide the foundation for a customized approach.

Provides a balance of numerical explorations, investigations with manipulatives, games, reinforcement exercises, problem solving experiences and integration with children's literature.