000 00712 a2200157 4500
001 5781
010 _a9786079501327
090 _a5781
100 _a20170516 frey50
101 _aeng
102 _aMX
200 _aProceedings of the joint meeting of PME 32 and PME-NA XXX - Volume 3
_fOlimpia Figueras, José luis Cortina, Silvia Alatorre, Teresa Rojano et Armando Sepulveda [Editors]
210 _aMexico
_cCentro de investigacion y de estudios avanzados del IPN
_cUniversidad Michoacana de San Nicolàs de Hidalgo
_d2008
215 _a4506p. (vol II p. 3-450)
_d20 cm.
_eCd-rom
225 _x0771-100X
_v
710 _aInternational Group for the Psychology of Mathematics Education
_d32
_eMorelia, Mexico
_f17-21 Juillet 2008
099 _tACT