The document summarizes a workshop on Universal Design for Learning (UDL) that was held on June 29, 2011 at the University of Sydney. The workshop included a discussion of the principles and guidelines of UDL, an activity to observe and identify examples of UDL in classrooms, and demonstrations of online tools from CAST including Book Builder, Science Writer, and Lesson Builder that incorporate UDL principles. The goal was for participants to learn how to use the tools to make their own teaching and training more accessible and flexible.