Dyrvold, Anneli, and Ida Bergvall. “Static, Dynamic and Interactive Elements in Digital Teaching Materials in Mathematics: How Do They Foster Interaction, Exploration and Persistence?”. LUMAT: International Journal on Math, Science and Technology Education 11, no. 3 (November 27, 2023): 103–131. Accessed November 13, 2024. https://journals-21.hulib.helsinki.fi/lumat/article/view/1941.