Universal Design for Learning (UDL) is a way for students with disabilities to access the knowledge and skills in classrooms. The UDL principles are based upon neuroscience with a belief that curriculum should be diversely presented by educators and expressed by students in multiple ways. The universal aspect of UDL offers a broad range of goals, methods, materials, and assessments for students. Preparing teachers how to deliver the curriculum to students in their classrooms using UDL principles requires training. The Center for Applied Special Technology (CAST) offers many ideas.