de Sales Fontoura da Silva Frantz, Débora, and Vanilde Bisognin. “Contributions of the Use of Photographic Images in Mathematics Classes: Constructing Knowledge through a Design-Based Research”. EDeR. Educational Design Research 9, no. 1 (May 15, 2025). Accessed December 7, 2025. https://journals.sub.uni-hamburg.de/EDeR/article/view/2155.