00634naa#a2200169#i#4500001002200000005001700022011001400039100004100053102000700094200010600101210005100207215001000258608002700268675012500295700002900420856001500449EN\INFRA-M\bibl\5256320240811083211.7##a1998-0728##a20220831b2022####ek#y0engy0150####ca##aRU1#aFirst Grader and Mathematics: Features of Teaching According to the Updated StandardeJournal article1#aMoscowcINFRA-M Academic Publishing LLC.d2022##a6 с.##aJournal article2local##aНародное образование. Воспитание. Обучение. Организация досуга. 37#1aRydzegOxana Anatol'evna4#anaukaru.ru