Today's mathematics : concepts and methods in elementary school mathematics

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050 0 ‡aQA135.5 ‡b.H4 1984
100 1 ‡aHeddens, James W., ‡d1925-
245 1 0 ‡aToday's mathematics : ‡bconcepts and methods in elementary school mathematics / ‡cJames W. Heddens.
250 ‡a5th ed.
260 ‡aChicago : ‡bScience Research Associates, ‡cc1984.
300 ‡avi, 662 p. : ‡bill. ; ‡c28 cm.
504 ‡aIncludes bibliographical references and index.
538 ‡aMode of access: Internet.
650 0 ‡aMathematics ‡xStudy and teaching (Elementary)
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DAT 1 ‡a20221206110740.0 ‡b2024-09-22T17:53:06Z
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