TY JOUR TI FORMATION OF ADEQUATE SELF-ESTEEM OF YOUNGER SCHOOLCHILDREN THROUGH THE DEVELOPMENT OF STUDENT SELF-GOVERNMENT KW junior school children KW student self-management KW adequate self-assessment KW teacher JO Scientific notes of P. F. Lesgaft University AU Savchenko, O.G. PY 2023 IS 0 PB National State University of Physical Education, Sports and Health named after P.F. Lesgaft