00576naa#a2200169#i#450# EN\INFRA-M\bibl\57881 20240516232251.4 1998-0728 20230323b2023####ek#y0engy0150####ca RU Organization of Design and Research Activities of Younger Schoolchildren Journal article Moscow INFRA-M Academic Publishing LLC. 2023 5 с. Journal article local Первая ступень обучения. Начальная школа. 373.3 Romanova V. Yu. naukaru.ru