What pieces do you want students to see on the left navigation bar? How do you add an image to your course? How do you set start and end dates? Learn these features and more in this video.
This is the page that students see when they click on your course. Think of it as your welcome page where they access information - announcements, Zoom link, etc.
This allows you to differentiate activities for students based on their mastery or lack of mastery in the content area.