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200 1 ^aSurveying middle-grades teachers'reasoning about fraction arithmetic in terms of measured quantities^fAndrew Izsák, Erik Jacobson, Laine Bradshaw
461  1^tJournal for research in mathematics education^cReston^bNational Council of Teachers of Mathematics^d2019^x0021-8251^vVol. 50, nº 2^pp. 156-209
606   ^aEnsino da Matemática^2ESEC
606   ^aFracção^xMatemática^2ESEC
675   ^a51^vBN^zpor
700  1^aIzák,^bAndrew
701  1^aJacobson,^bErik^4070
701  1^aBradshaw,^bLaine^4070
801  0^aPT^bESEC^c20190410^gRPC
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