A course site is the official worksite for a particular academic course for an institution and can be linked to a database (such as a registrar’s) to automatically populate its roster.
You should click on the star icon to reach your lessons more easily. So you will add the relevant lesson to the favorites. You must refresh the page to see your favorite lessons. As you can see, you can now access your classes from the top menu.
Course sites usually contain a selection of tools and resources provided by the instructor so that students may access course materials, interact with other site participants, and submit work.