Online students are required to read these on their own. The slides will be ready for you to read through them on the day and time that the hybrid class starts. While you're welcome to look at them before then be warned that the slides can (and often do!) change shortly before the in-person, hybrid class starts.
Hybrid students will see them at the start of class.
The next several sections of this lesson cover various topics which are explained in the above slides. Both hybrid and online students are required to go through the above slides (because the teacher may or may not cover that material in class).
The instructor has recorded videos in which the instructor walks you through the above slides, much like you might do in a face to face class. The videos are short and the length of each video is listed off to the right of the link. The videos are collected here for ease-of-reference later; each video is also listed in the relevant exercise. You should watch each video as many times as you need to, but you're not expected to watch each one more than once (unless you want to).
NOTE: While you are expected to watch and understand the content of these videos, there are no viewing quiz questions about them, nor are you required to outline them.