The study of spherical geometry in Mathematics teacher education: an experience based on the use of manipulable materials. Research, Society and Development, [S. l.], v. 10, n. 1, p. e18510111646, 2021. DOI: 10.33448/rsd-v10i1.11646. Disponível em: https://rsdjournal.org/rsd/article/view/11646. Acesso em: 5 dec. 2025.