Standard Description: The default assumption is that videos are optional because they cover the same material discussed in some combination of class, recitation section, and the written reading notes. They can nonetheless serve as a useful resource if you are confused on a topic. We might occasionally "assign" a small number of videos in order to let class focus more on specific topics. We may also point interested students to a small number of "optional" videos on related but less-essential topics.
Special Note for This Section: As the end of the quarter approaches, we will have to see how much of this material we have time for. We will definitely cover most of it, possibly including some of the material described as "optional" in the videos. In other words:
Of course we will make clear what exactly may appear on the final exam.