The derivative in the textbooks of non-compulsory secondary education: An analysis of the proposed tasks. Advances of Research in Mathematics Education, [S. l.], n. 18, p. 87–102, 2020. DOI: 10.35763/aiem.v0i18.288. Disponível em: https://aiem.es/aiem/article/view/3864. Acesso em: 20 may. 2026.