In a flipped classroom, an increasingly popular pedagogical model, students view a video lecture at home and work on exercises with the instructor during class time. Advocates of the flipped classroom claim the practice not only improves student achievement, but also ameliorates the achievement gap. We conduct a randomized controlled trial at West…

Video "podcast" recordings of lectures are popular with students, but are often associated with a decrease in attendance and little increase in performance. Assessment has generally focused on the class as a whole, potentially masking benefits to different subgroups. In this study, conducted in 2 sections of a large active-learning…