Developing number sense in the middle grades /

Bibliographic Details
Main Author:	Reys, Barbara
Other Authors:	Barger, Rita
Format:	Book
Language:	English
Published:	Reston Va. : National Council of Teachers of Mathematics, [1991]
Series:	Curriculum and evaluation standards for school mathematics addenda series. Grades 5-8.
Subjects:	Number concept in children > Study and teaching (Elementary)

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