SILGADO-TUÑÓN, D. A.; BARRIOS MERCADO, J. C.; MONTELONGO AGUILAR, O. Conceptual understanding of systems of Linear Equations in secondary education: a didactic proposal using GeoGebra. Amazonia Investiga, [S. l.], v. 15, n. 87, p. 93–105, 2026. DOI: 10.34069/AI/2026.87.01.8. Disponível em: https://www.amazoniainvestiga.info/index.php/amazonia/article/view/2968. Acesso em: 2 aug. 2026.