A Wearable Haptic Interface for Assisting Blind and Visually Impaired Students in Learning Algebraic Equations

Abstract

BVI (blind and visually impaired) persons do not have the same degree of access to concepts and procedures in learning algebraic equations as sighted persons. As tactile resources are uncommon, most rely on auditory-based methods that place heavy stress on working memory. We propose a novel approach that leverages haptic technology to communicate mathematical symbols via vibrotactile patterns; this design addresses open challenges found in existing resources for BVI people and explores the potential utility of this medium for all users. We conducted three separate studies to evaluate the feasibility of our gloves that included BVI participants. The outcomes of our studies yielded insightful design discussions, including a blind participant who found the device immediately intuitive and exciting in potential.