NURNBERGER-HAAG, J. Follow the Signs to Promote Accurate Geometric Shape Knowledge. Ohio Journal of School Mathematics, [S. l.], v. 80, n. 1, 2018. Disponível em: https://www.osu.tests.sfulib4.publicknowledgeproject.org/index.php/OJSM/article/view/6041. Acesso em: 30 apr. 2026.