TY JOUR TI About the basic categories of grammar teaching methods in the textbook of academician A.V. Tekuchev «Methodology of the Russian language in secondary school» KW grammar teaching methodology KW basic categories KW categorical approach JO Journal of Pedagogical Studies AU Shapovalova, I.A. AU Tekucheva, I.V. PY 2023 IS 8 PB INFRA-M Academic Publishing LLC.