TY JOUR TI Extracurricular Activities as a Condition for the Intellectual Development of Young Teenagers KW imbalance KW non-verbal parameters KW verbal parameters KW a set of activities for the general intellectual direction KW metasubject results KW development of inclinations KW efficient mental activity JO Bulletin of Kemerovo State University. Series: Humanities and Social Sciences AU Michurina, E.S. AU Kozhevnikova, E.E. AU Tuzhilkin, S.A. PY 2021 IS 2021 PB Kemerovo State University