00674naa#a2200169#i#4500001002200000005001700022011001400039100004100053102000700094200015700101210005100258215001000309608002700319675010800346700003500454856001500489EN\INFRA-M\bibl\4647420240713074215.6##a1998-0728##a20211109b2021####ek#y0engy0150####ca##aRU1#aProblems Arising in the Course of Teaching Younger Schoolchildren with Different Levels of Academic Achievement, and Ways to Solve ThemeJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2021##a4 с.##aJournal article2local##aОбразование. Воспитание. Обучение. Организация досуга. 37#1aVinogradovagNatalya Fedorovna4#anaukaru.ru