00561nam a2200181 a 450000500170000000800410001702000180005804000240007605000260010010000140012624500550014026000340019530000120022950000510024165000490029270000150034170000230035620250506163507.0121010s19uu    xx            00    eng d  a9781412992053  6HSLRCaHSLRCcHSLRC  aQA 135.6 b.H913 201110aHull, Ted10aVisible thinking in the k-8 mathematics classroom 0 aCalifornia :bCorwin,cc2011.  a26pages  aIncludes bibliographical references and index.  aMathematicsxStudy and teaching (Elementary)1 aBalka, Don1 aMiles, Ruth Harbin