Adding it up [electronic resource] : helping children learn mathematics / Mathematics Learning Study Committee, Center for Education, Division of Behaviorial and Social Sciences and Education, National Research Council ; Jeremy Kilpatrick, Jane Swafford, and Bradford Findell, editors.
Publication details: Washington, DC : National Academy Press, c2001.Description: xvii, 454 p. : illISBN:- 0309069955 (hardcover)
- 372.7 21
- QA135.5 .A32 2001eb

Includes bibliographical references and index.
Electronic reproduction. Palo Alto, Calif. : ebrary, 2013. Available via World Wide Web. Access may be limited to ebrary affiliated libraries.