Báez, Ana Mercedes, and Heidy Gómez Muñoz. “Difficulties in the Design of Mathematical Tasks for Procedural Development of Variation and Change Processes: A Study With Dominican Teachers”. Transformación 21 (January 5, 2025): e-486. Accessed March 4, 2026. https://transformacion.reduc.edu.cu/index.php/transformacion/article/view/486.