All lessons from hh_sorting will be posted here. In this community you may participate in classes of your choosing. The Professors will post a lesson plan and outline of what their classes will cover. If the class interests you, you may sign up and enjoy the classes given as well as earn points with your completed homework and participation! At this time, classes are not mandatory however that may change in the future if the interest and available Professors are to be had.
The list of lessons goess here. Here's a random list of classes.