The Impact of the Stratified Teaching Model in Physical Education on Middle School Students’ Physical and Mental Health from a Gender Perspective. Journal of Global Trends in Social Science, [S. l.], v. 3, n. 3, 2026. DOI: 10.70731/zy7dz666. Disponível em: https://jandoopress.com/journal/jgtss/article/view/33-44. Acesso em: 1 jun. 2026.