Elif Nur AKKAŞ, Elif TÜRNÜKLÜ. Middle School Mathematics Teachers’ Pedagogical Content Knowledge Regarding Student Knowledge about Quadrilaterals . Elementary Education Online [Internet]. 2023 Dec. 11 [cited 2025 Jan. 22];14(2):744-56. Available from: https://ilkogretim-online.org/index.php/pub/article/view/767