000 00665nam a2200229 a 4500
005 20210219152820.0
008 991125n 000 0 eng u
035 _aUPN01000062264
100 _aGray, Edward M.
222 _aEDUCATIONAL STUDIES IN MATHEMATICS
245 _aA analysis of diverging approaches to simple arithmetic : preference and its consequences
300 _a551-574
362 _a1991 22, no. 6
653 0 _aARITMETICA
653 0 _aDEDUCCION
653 0 _aDESARROLLO COGNOSCITIVO
653 0 _aDESTREZAS DEL PENSAMIENTO
653 0 _aDESTREZAS MATEMATICAS
653 0 _aENTREVISTAS
904 _aAC
_b000075
905 _aArticulo
999 _c61611
_d61611