000 00541 a2200157 4500
001 8293
010 _a9780521161541
090 _a8293
100 _a20170516 frey50
101 _aeng
102 _aGB
200 _aThniking as communicating
_eHumand Development, the growth of discourses, and Mathematizing
_fAnna Sfard
210 _aCambridge
_aNew York
_cCambridge University Press
_d2008
215 _a324p.
_d23cm.
225 _aLearning in Doing : social, cognitive, And computational Perspectives
_fJohn Seely Brown
_v
701 _4070
_aSFARD
_bAnna
099 _tMON