As presented in the UDL Guidelines, teachers can optimize access to learning by providing learners with options for both perceiving information and for physically interacting with curriculum materials. Designing for accessibility is foundational to meeting these UDL checkpoints. The POUR (Perceivable, Operable, Understandable, Robust) accessibility principles from the W3C (World Wide Web Consortium) are outlined in this resource, serving as a guide for helping teachers create educational materials that follow accessibility best practices in order to remove barriers to learning.