The document discusses Universal Design for Learning (UDL), which aims to make education accessible to all students by considering individual differences. UDL originated from architecture and aims to design spaces and products for all people. In education, UDL recognizes that there is no "average" student and aims to reach all students through multiple representations of content, flexible means of expression, and varied methods of engagement. Implementing UDL requires teachers to thoughtfully design fuller lesson plans that can engage and meet the needs of diverse learners in the classroom.