000 00643nam a2200217 a 4500
005 20210219153250.0
008 991125n 000 0 u
035 _aUPN01000087329
100 _aBurns, Marilyn
222 _aINSTRUCTOR
245 _aMath standards in action. Primary focus : introducing multiplication. Intermediate focus: numeration and place value
300 _a80-81
362 _a102, No. 2, 1992
505 _aAbril 1993
653 0 _aCONCEPTOS MATEMATICOS
653 0 _aMATEMATICAS DE LA ESCUELA ELEMENTAL
653 0 _aMULTIPLICACION
700 _aWinson, Beth
904 _aAC
_b025140
905 _aArticulo
999 _c72520
_d72520