TY  - JOUR
AU  - Vetseva, Evgeniya
TI  - A problem-based approach in teaching progressions
JO  - Mathematics and Education in Mathematics
PY  - 2023
SP  - 154
EP  - 165
VL  - 52
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MEM_2023_52_a12/
LA  - bg
ID  - MEM_2023_52_a12
ER  -