SUPPLEMENTARY MATERIALS AS A TOOL IN IMPROVING LEARNERS’ SELF-EFFICACY AND MATHEMATICAL SKILLS. EPRA International Journal of Multidisciplinary Research (IJMR), [S. l.], v. 10, n. 9, p. 260–270, 2024. Disponível em: https://epratrust.in/index.php/IJMR/article/view/263. Acesso em: 27 sep. 2024.