Change the entire school culture with this collaborative method of supervision.For years the classic supervision model has frustrated both principals and teachers by fostering superior-subordinate relationships focusing on teacher conformity rather than growth or producing checklist data that is irrelevant to the curriculum. The Three- Minute Classroom Walk-Through offers a practical time-saving alternative that impacts student achievement by cultivating self-reliant teachers who are continually improving their practice. This method answers principals key questions:Are my teachers aligned with district curriculum? Are they using research-based best practices?Are they choosing the instructional strategies that will impact student achievement?