%0 Journal Article %A Kilpatrick, Jeremy %T The Mathematics Teacher and Curriculum Change. %J PNA %D 2009 %P 107-121 %V 3 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/PNA_2009_2009_1_a6/ %G en %F PNA_2009_2009_1_a6