00618naa#a2200169#i#450# EN\INFRA-M\bibl\5816 20250204123949.2 1998-1740 20150417b2015####ek#y0engy0150####ca RUS RU Conceptual View to the Nature of Planning of Younger School Students’ Extracurricular Activity in Conditions of the Mastering of Federal State Educational Standard of Primary Education Journal article Moscow INFRA-M Academic Publishing LLC. 2015 7 с. Journal article local Ivanova Irina Viktorovna zh-szf.ru