Adding it up
Adding it up: 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
Publisher: Washington, D.C. : National Academy Press ; 2001.
ISBN: 0309069955
DDC: 510.71
LCC: QA135.5