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200 1 $a<<Vol. 2:>>Cases and perspective$fedited by Glendon W. Blume and M. Kathleen Heid
210   $aCharlotte$cNational council of teachers of mathematics$dcopyr. 2008
215   $aXII, 468 p.$cill.$d24 cm
461  1$1001000315460$12001$aResearch on tecnology and the teaching and learning of mathematics: syntheses, cases, and perspectives
606 0 $aMatematica$xApprendimento
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702  1$aBLUME,$bGlendon W.
702  1$aHEID,$bM. Kathleen
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