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905793151
905793151
http://www.worldcat.org/oclc/905793151
The role of contexts and models in the development of mathematical strategies and procedures / M. Beishuizen, K.P.E. Gravemeijer & E.C.D.M. van Lieshout (eds.)
sameAs
905793151
http://www.worldcat.org/oclc/905793151