Should supervisors intervene during classroom visits?

Real-time coaching has become the go-to supervisory model in some schools (especially charters), with supervisors routinely jumping in during teacher observations and sometimes taking over the class to model a more effective approach. The author sets out goals and guidelines for impromptu classroom visits that include visiting each classroom at least once a month; being as unobtrusive as possible; sometimes taking videos of classroom interactions; and not using rubric scoring in feedback.