TY JOUR TI Problems Arising in the Course of Teaching Younger Schoolchildren with Different Levels of Academic Achievement, and Ways to Solve Them KW younger schoolchildren; the success of educational activities; learning difficulties; individually differentiated approach KW taking into account the level of success of each student; achievement of metasubject learning outcomes; the formation of universal educational actions JO Primary Education AU Vinogradova, N.F. PY 2021 IS 9 PB INFRA-M Academic Publishing LLC.