ABDULLAH KAPLAN; MESUT ÖZTÜRK. Analysis of 2nd-8th grade students’ thinking approaches toward understand the concept of symmetry. Elementary Education Online, [S. l.], v. 13, n. 4, p. 1502–1515, 2014. Disponível em: https://ilkogretim-online.org./index.php/pub/article/view/6400. Acesso em: 5 jul. 2024.