Teacher Specialised Knowledge: A Teaching Experiment Focused on a Formative Task about Geometry. Advances of Research in Mathematics Education, [S. l.], n. 26, p. 1–19, 2024. DOI: 10.35763/aiem26.5359. Disponível em: https://aiem.es/aiem/article/view/v26-barrera-contreras-munoz. Acesso em: 20 may. 2026.