A reliable session has three parts. Open by connecting to prior learning and naming the day’s goal, so students know why they are there. In the middle, alternate short bits of delivery with active practice, since people learn by doing and not only by listening. Close by having students consolidate: a quick summary, a question answered, or a one-sentence reflection.

This open, practice, close shape works in a fifty-minute class or a three-hour seminar. It also guards against the most common failure mode, talking for the whole period and leaving no time for students to work with the material.