Effective mathematical discourse is a cornerstone of deep conceptual understanding in mathematics. This session, designed specifically for instructional leaders, will equip you with the tools and strategies to support teachers in fostering rich and productive math discourse within their classrooms, leveraging high quality curriculum. We will explore how to build teacher capacity in creating an Optimal Learning Environment that encourages student voice and mathematical reasoning. Participants will learn how to provide targeted feedback on questioning techniques, facilitate professional learning communities focused on discourse strategies, and leverage data to monitor the impact of discourse-focused instruction. We will delve into strategies for modeling effective discourse practices, observing and analyzing classroom interactions, and providing teachers with actionable steps for improvement. Leave this session with a clear understanding of how to lead and support teachers in cultivating a classroom culture where all students actively engage in meaningful mathematical conversations, leading to improved student outcomes.