TY  JOUR
TI  Formation of Mathematical Concepts by Younger Schoolchildren
KW  junior school age
KW  concept
KW  methods of definition of concepts
KW  logical errors
KW  stages of concept formation.
JO  Standards and Monitoring in Education
AU  Chirkova, N.I.
AU  Pavlova, O.A.
PY  2018
IS  6
PB  INFRA-M Academic Publishing LLC.