A must-have book for everyone wanting to know how young children develop and understanding of number concepts. Kathy Richardson has identified the predictable stages, or Critical Learning Phases, children go through as they develop the mathematical understanding that is essential to building a solid foundation of numerical reasoning. This important resource will help all math educators and parents of young children understand how children make sense of numbers and what mathematics they are ready to learn at each phase of development.

About the Author

Kathy Richardson, Co-founder and Program Director for Math Perspectives Teacher Development Center, is considered one of the nation's most respected math educators and is an expert in the field of elementary mathematics assessments. A former classroom teacher, she is a nationally known author, professional development leader and speaker.

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