00686naa#a2200181#i#4500001002200000003001700022005001700039011001400056100004100070102000700111200010600118210005100224215001000275608002700285675012500312700002900437856003800466EN\INFRA-M\bibl\52563/en/manage/index20250417153636.4##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#afht.editorum.ruu/en/manage/index