RODRIGUES RÉZIO, Ana Sofia. Algebraic Thinking: Conceptions of Elementary School Teachers. Revista Ensayos Pedagógicos, [S. l.], v. 9, n. 1, p. 121–135, 2014. DOI: 10.15359/rep.9-1.6. Disponível em: https://www.revistas.una.ac.cr/index.php/ensayospedagogicos/article/view/6734.. Acesso em: 25 may. 2024.