Learner characteristics vary broadly, yet most digital materials are not designed to be responsive to physical, sensory, or cognitive differences, including teacher-created documents, slides, videos, and more. Teacher-created materials are the most common form of non-textbook materials used in schools, but they can be a significant barrier for disabled students. Fortunately, free tools are available through funding from the U.S. Department of Education to help teachers create digital materials that are not only accessible but innovative in flexibility and personalization.