In K. Beswick (Ed.), Proceedings of the 15th International Congress on Mathematical Education.
ABSTRACT: The rise of digital educational technologies and the emergence of embodied theories have transformed the teaching and learning of mathematics. However, this often neglects the sense of touch, putting Braille readers at a disadvantage. This paper introduces the initial iteration of designing TacTiles—a tactile interaction system for learning algebra. In the design, we combine two models used for teaching algebra, namely algebra tiles, and balance and adapt the affordances of our interaction system based on tryouts with Braille readers. The system allows for modeling expressions, factoring, and solving equations. Students found grasping equations while balancing tiles intuitive and insightful. However, factoring was challenging, as users tended to arrange the tiles randomly. In addition, the system requires an interface with Braille displays and sound to store the steps in solving equations. This study contributes to the advancement of innovative technologies and our understanding of Braille readers’ algebra comprehension and beyond.