TY  - JOUR
AU  - Zhelyazkova, Tsvetelina
AU  - Boykina, Dobrinka
TI  - Using a heuristic approach in maths education in 6th - 7th grade
JO  - Mathematics and Education in Mathematics
PY  - 2021
SP  - 252
EP  - 260
VL  - 50
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MEM_2021_50_a29/
LA  - bg
ID  - MEM_2021_50_a29
ER  -