TY JOUR TI On the Initial Stage of the Formation of Cognitive Universal Educational Activities in First-Graders in Mathematics Lessons KW educational activity of a younger student; mathematics course for the first grade; development of cognitive universal educational activities on mathematical material; logical actions; information actions; use of practice-oriented tasks JO Primary Education AU Fedorova, N.V. PY 2022 IS 10 PB INFRA-M Academic Publishing LLC.