000 00680 a2200193 4500
001 30918
090 _a30918
101 0 _aeng
102 _aUS
100 _a20130307 frey50
200 1 _aConservation of number, seriation, and classification abilities of rural Portuguese children at first and second Years of primary school
_bLIVR
_fAna Maria Leitão Bandeira P. M. Rodrigues
210 _aBoston
_cUniversity School of Education
_d1984
215 _aVIII, 78 p.
_d30 cm
606 _aMatemática
675 _a51"372"
606 _aDesenvolvimento curricular
700 1 _aRodrigues
_bAna Maria Leitão B. P. M.
801 _bESE
830 _g0