Viana, Odalea Aparecida, and Ana Carolina Igawa Barbosa. “Significant Learning of the Concept of Polygon and the Decision-Makings of a Mathematics Teacher”. BRAZILIAN ELECTRONIC JOURNAL OF MATHEMATICS, vol. 1, no. 1, Jan. 2020, pp. 7-26, https://doi.org/10.14393/BEJOM-v1-n1-2020-50091.