TY JOUR TI GAMIFICATION IN THE TRAINING OF A MODERN SCHOOL TEACHER: THEORY, PRACTICE AND PROSPECTS KW gamification KW teacher training KW professional development KW game methods KW educational technologies KW motivation JO Vectors of psychological and pedagogical research AU Astashova, N.A. AU Toropyno, D.I. PY 2026 IS 0 PB Academy of the FPS of Russia