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The development of the concepts of ratio and fraction in the fourth, fifth, and sixth years of the elementary school
1968, Wisconsin Research and Development Center for Cognitive Learning, University of Wisconsin
in English
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Edition Notes
Bibliography: p. 43.
"Report from the Mathematics Concept Learning Project. Henry Van Engen, principal investigator."
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October 5, 2020 | Edited by MARC Bot | import existing book |
December 14, 2009 | Edited by WorkBot | link works |
April 1, 2008 | Created by an anonymous user | Imported from Scriblio MARC record |