Mathematics questions in tests of admission to the Polytechnic College of Federal University of Santa Maria (2015-2020): an analysis based on two records of semiotic representation. Research, Society and Development, [S. l.], v. 9, n. 11, p. e59291110177, 2020. DOI: 10.33448/rsd-v9i11.10177. Disponível em: https://www.rsdjournal.org/rsd/article/view/10177. Acesso em: 16 dec. 2025.