Knowledge, teaching competences of mathematics teachers and becoming a teacher trainer. Advances of Research in Mathematics Education, [S. l.], n. 13, p. 1–3, 2018. DOI: 10.35763/aiem.v0i13.237. Disponível em: https://aiem.es/aiem/article/view/3925. Acesso em: 20 may. 2026.