The challenges of teaching mathematics in the context of the COVID-19 pandemic: a look at youth and adult education. Research, Society and Development, [S. l.], v. 11, n. 5, p. e35011528217, 2022. DOI: 10.33448/rsd-v11i5.28217. Disponível em: https://rsdjournal.org/rsd/article/view/28217. Acesso em: 5 dec. 2025.