I get very frustrated when I have to add up durations of time to figure out a total amount of time. The basic communication class at Purdue (COM 114, a presentational speaking class) is being revamped this year. As part of that revamping, the class has gained an “Asynchronous Presentation.” I am a big supporter of this presentation, which amounts to a recorded narration over a PowerPoint-style visual aid, because it uses a lot of important skills for types of presentations that are not taught as well as they could be.