A "must-have" book for every educator wanting to know how young children develop an understanding of number concepts. Through her years of research and extensive work with young children, Richardson has identified the stages, or Critical Learning Phases, children go through as they develop mathematical understanding.
This important resource will help all math educators understand how children make sense of numbers and what mathematics they are ready to learn at each phase of development.
Grades K-5. 220 pages.
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