Every math teacher I know has experienced some version of this moment. The principal walks into the room. The teacher feels it immediately — the back of the neck, the small adjustment in voice, the way the lesson suddenly feels like it’s being performed rather than taught. Students notice too, even if they can’t name what changed. Twenty minutes later the principal is gone, and the teacher spends the rest of the day waiting for the email. Can you stop by my office? When the c

Most leaders can spot strong literacy instruction—but math is different. Even when teachers try their best, math improvement often fades after PD, and student reasoning gets lost in the shuffle. This post explores why instructional leadership in math can’t be optional, what leaders need to notice, and how building consistent systems—not just giving feedback—changes outcomes for every student.

When we talk about differentiation in math classrooms, especially for students who struggle, the go-to solution is often to “make the...