TY - JOUR AU - Ewa Swoboda TI - Space, geometrical regularities and shapes in children's learning and teaching JO - Didactica Mathematicae PY - 2008 VL - 31 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.14708/dm.v31i0.18/ DO - 10.14708/dm.v31i0.18 LA - pl ID - 10_14708_dm_v31i0_18 ER -