TY JOUR TI EXTRACURRICULAR ACTIVITIES AS A FACTOR IN PROFESSIONAL SELF-DETERMINATION AND PERSONAL DEVELOPMENT OF A SCHOOL STUDENT KW extracurricular activities KW professional self-determination KW personality development KW teacher-mentor KW socialization JO Scientific Papers Collection of the Angarsk State Technical University AU Sitosanova, O.V. PY 2026 IS 2026 PB Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University»