This document summarizes a study that examined the effect of instructional supervision by school authorities on the pedagogical practices of teachers in public secondary schools in Uganda. The study found that both classroom observations and portfolio supervision had statistically significant positive effects on teachers' pedagogical practices. However, the study also established that school authorities in Uganda were inadequately conducting instructional supervision, which could leave teachers employing ineffective pedagogical practices. The study concluded that teachers' pedagogical practices depend on how they are supervised, and recommended increasing school inspections and providing training to supervisors to improve instructional supervision and teachers' pedagogical practices.