Adding it up helping children learn mathematics /

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Bibliographic Details
Corporate Author:	ebrary, Inc
Other Authors:	Kilpatrick, Jeremy, Swafford, Jane, Findell, Bradford
Format:	Electronic eBook
Language:	English
Published:	Washington, DC : National Academy Press, c2001.
Subjects:	Mathematics > Study and teaching (Elementary) > United States. Mathematics > Study and teaching (Middle school) > United States. Electronic books.
Online Access:	An electronic book accessible through the World Wide Web; click to view
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