Accessible Educational Materials (AEM): According to the National Center on Accessible Educational Materials (2023), Accessible Educational Materials (AEM) are defined as print- and technology-based educational materials, including printed and electronic textbooks and related core materials that are designed or enhanced in a way that makes them usable across the widest range of learner variability. Accessible formats provide the same information in another form to address the barriers text-based materials can present for some learners. Examples of accessible formats include audio, braille, large print, tactile graphics, and digital text conforming with accessibility standards.
Assistive Technology (AT): any: (1) item; (2) piece of equipment; or (3) product system; whether acquired commercially off the shelf, modified, or customized, that is used to increase, maintain, or improve the functional capabilities of a student with a disability. The term does not include a medical device that is surgically implanted or the replacement of such device.
Universally Designed or Universal Design for Learning (UDL): a concept or philosophy for designing and delivering products and services that are usable by people with the widest possible range of functional capabilities, which include products and services that are: (1) directly accessible, without requiring assist; and (2) interoperable with assistive technologies.