TY JOUR TI Development of Ideas of Math Education of Younger Schoolchildren in Soviet School in 30-50-ies of the XX Century KW mathematical education KW younger schoolchild KW formation of methodical system KW means of education KW program in mathematics KW educational material KW personalities. JO Primary Education AU Kochurova, E.E. PY 2016 IS 4 PB INFRA-M Academic Publishing LLC.