TY JOUR TI Cognitive Universal Educational Actions of Primary Schoolchildren: Characteristics, Methods and Techniques of Formation KW younger schoolchildren; cognitive universal learning activities; groups of cognitive universal educational actions; methods and techniques for the formation of cognitive universal educational actions; symbolic modeling JO Primary Education AU Romaeva, N.B. AU Astrecova, N.V. PY 2021 IS 9 PB INFRA-M Academic Publishing LLC.