00516naa#a2200169#i#450# EN\INFRA-M\bibl\42405 20250105191314.7 2308-4898 20201230b2020####ek#y0engy0150####ca RU Quality of Geometric Education in Various Approaches to Teaching Methods Journal article Moscow INFRA-M Academic Publishing LLC. 2020 13 с. Journal article local Математика. 51 Sal'kov N. A. zh-szf.ru