This will be a dynamic session with participants not only learning about asset-based math assessment in the early years but also observing and discussing the mathematical brilliance of young children. Participants will learn that math interviews uncover student strengths in a way that is often missed by traditional assessments. They will also deepen their own thinking about how and what to notice when listening to the math thinking of young children. Finally, participants will learn about models of professional learning that make scaling math interviews across a school system viable with high quality implementation.