WAYS TO IMPROVE THE OPTIONAL TRAINING IN SECONDARY SCHOOLS BASED ON INTERNATIONAL EXPERIENCE. . ОБРАЗОВАНИЕ НАУКА И ИННОВАЦИОННЫЕ ИДЕИ В МИРЕ, [S. l.], v. 70, n. 3, p. 311–315, 2025. Disponível em: https://scientific-jl.com/obr/article/view/17084. Acesso em: 2 aug. 2025.