Grounding mathematics education
pp. 1-7
in: Michael H. G. Hoffmann, Johannes Lenhard, Falk Seeger (eds), Activity and sign, Berlin, Springer, 2005Home > Edited Book > Contribution
pp. 1-7
in: Michael H. G. Hoffmann, Johannes Lenhard, Falk Seeger (eds), Activity and sign, Berlin, Springer, 2005