Problem solving: a diagnosis of Mathematics teaching in the Final Grades of Elementary. Research, Society and Development, [S. l.], v. 11, n. 15, p. e348111537371, 2022. DOI: 10.33448/rsd-v11i15.37371. Disponível em: https://rsdjournal.org/rsd/article/view/37371. Acesso em: 5 dec. 2025.