This article explores how teachers respond to student mistakes in one educational setting--an elite private high school. This qualitative study is a thematic analysis of in-depth, semi-structured interviews with teachers at one such school. The results reveal that in their responses to student mistakes, the teachers work to build trust and emotional safety, give students agency throughout the learning and feedback processes, and ask probing questions that rigorously challenge their thinking. By considering teacher accounts of their instructional approaches and past experiences, the study adds a context-specific, real-world perspective on how teachers in an elite school frame student mistakes.