For reasons unknown to the instructor, the lab/tutorial was not scheduled by the registrar this year. This means that you will have complete them as a self-study exercise. There are no direct marks for these exercises, but I will consider material presented there as testable. Of course, I'm happy to answer questions about the tutorials in lectures or via email.
The first 5 tutorials (starting from 0) are a quick review of the prerequisite material from CS2613.