It’s well-known that a warm and welcoming school environment lowers students’ affective filters and creates a more fertile ground for learning. But what is necessary to create such a climate, and how can that impact language development? This session dives into UDL as a framework for ensuring school and classroom conditions provide students with maximum flexibility for engagement, making meaning of information, and expressing their learning. Participants will explore the 3 principles of UDL, particularly as they relate to access and opportunity for languages to grow and excel. The session will also explore the complementary and supplementary aspects of UDL as it compares to the Sheltered Instruction Observation Protocol (SIOP).