Universal Design for Learning (UDL) is an educational framework that aims to provide all students with multiple means of representation, engagement, and expression. Assistive technology (AT) refers to tools that allow individuals with disabilities to perform tasks they otherwise cannot by providing modifications or enhancements. Some common AT tools include mobility devices, modified keyboards and mice, screen magnification software, and speech apps. The document provides examples of AT tools like Proloquo2go and links to additional UDL and AT resources.