00891cam a2200229 a 450000500170000000800410001701000140005802000390007203500200011104000230013105000210015410000300017524501240020525000130032926000350034230000330037750400510041050500470046165000490050870000300055785600740058720230110144132.0071003m2006    nyum     b   a001 0 eng    a00-036659  a0471387932 ( pbk : acidfree paper)  a(OCoLC)43859439  aDLCcDLCdUKMdOKS 4aQA135.6 H43 20061 aHeddens, James W.,d1925-10aToday's mathematics :bConcepts, classroom methods, and instructional activities /cJames W. Heddens, William R. Speer.  a11th ed.  aNew York :bJohn Wiley,c2006.  av. <2    > :bill. ;c28 cm.  aIncludes bibliographical references and index.0 apt. 2. Activities and instructional ideas. 0aMathematicsxStudy and teaching (Elementary)1 aSpeer, William R.,d1946-4 3Table of Contentsuhttp://www.loc.gov/catdir/toc/onix06/00036659.html