000 00641nam a22002297i 4500
005 20141212085904.0
008 870915s1987 sp gr 000 0 spa c
040 _aSIIS
_bspa
041 _aeng
100 1 _aFUSON, K.
245 1 0 _aROLES OF REPRESENTATION AND VERBALIZATION IN THE TEACHING OF MULTI-DIGIT ADDITION AND SUBSTRACTION
650 1 4 _aMatemáticas
650 1 4 _aMétodo educativo
650 1 4 _aProblemas de cálculo
655 4 _aDocumental
773 0 _tEUROPEAN JOURNAL OF PSYCHOLOGY OF EDUCATION
_gVol. 1, no. 2 (1986), p. 35-56
996 1 0 _a75
996 1 0 _aC11c
996 1 0 _aC3
997 _a3483
998 _aAR
939 _a19870915
999 _c3447
_d3447