The document discusses Universal Design for Learning (UDL), which aims to give all students equal opportunities to learn by providing multiple means of representation, expression, and engagement. UDL has three principles - providing options for perception, expression, and physical action. The document outlines how UDL-aligned lessons use technology and multimedia to engage students in active learning. When incorporated into curriculum, UDL motivates learning for all students regardless of abilities. Examples of UDL tools that support teachers and students are provided.