Introduction to Universal Design for Learning (UDL)

The Universal Design for Learning (UDL) is a framework for teachers that encourages them to be flexible in their methods of instruction in classrooms. The key factor of a UDL is that it minimizes barriers to address the educational needs of all students, no matter their ability levels. The three main principles of UDL are multiple means of representation (“The what of learning”), multiple means of action and expression (“The how of learning”), and multiple means of engagement (“the why of learning”). Through representation, or presenting information and course content in multiple formats so that all students can access it, action and expression, or allowing students alternatives to express or demonstrate their learning, and engagement, or stimulating students' interests and motivation for learning in a variety of ways, teachers can be sure that they are providing an education that engages and includes all learners. 

Information found in : Assistive Technology In the Classroom: Enhancing the School Experiences of Students with Disabilities, Second Edition 2012 by Amy G. Dell, Deborah A. Newton, Jerry G. Petroff,  Pearson, ISBN 10: 0-13-139040-6 or ISBN 13: 978-0-13-139040-9.