








Baxter, Kathleen A.; Kochel, Marcia Agness
Bear, Donald R.; Invernizzi, Marcia; Templeton, Shane; Johnston, Francine



Cushman, Kathleen; Rogers, Laura

Zemelman, Steven; Daniels, Harvey; Hyde, Arthur

Block PhD, Cathy Collins; Rodgers MEd, Lori L.; Johnson, Rebecca B.


Karen C. Fuson; Children's Math Worlds Research Project; National Science Foundation

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