TY - JOUR AU - V. M. Imaykin TI - Acitivity-based Elementsof Education: Examples from Mathematics JO - Matematičeskoe obrazovanie PY - 2004 SP - 64 EP - 74 IS - 4 UR - http://geodesic.mathdoc.fr/item/MO_2004_4_a3/ LA - ru ID - MO_2004_4_a3 ER -