The object-tool duality in mathematical modelling. A framework to analyze students’ appropriation of Sankey diagrams to model dynamic processes. Advances of Research in Mathematics Education, [S. l.], n. 17, p. 52–66, 2020. DOI: 10.35763/aiem.v0i17.305. Disponível em: https://aiem.es/aiem/article/view/3909. Acesso em: 20 may. 2026.