000 00608nam a2200229 a 4500
005 20210219153445.0
008 991125n 000 0 eng u
035 _aUPN01000101036
100 _aConfrey, Jere
222 _aEDUCATIONAL RESEARCHER
245 _aSteering a course between Vygotsky and Piaget
300 _a28-33
362 _a1991 20, no. 8
505 _aAbril 1992
653 0 _aEDUCACION MATEMATICA
653 0 _aEPISTEMOLOGIA
653 0 _aINVESTIGACION EDUCATIVA
653 0 _aPROCESOS COGNITIVOS
653 0 _aTEORIA PIAGETIANA
904 _aAC
_b038847
905 _aArticulo
999 _c77392
_d77392