TY JOUR TI Mastering the Methods of Cognition of Natural Phenomena As an Important Component of the Natural Science Functional Literacy of a Primary Schoolchild KW primary schoolchildren; natural science functional literacy; scientific methods of cognition; observation; an experience; national and international studies on the quality of education JO Primary Education AU Timofeeva, L.L. PY 2020 IS 8 PB INFRA-M Academic Publishing LLC.