If you wish to add another week, unit, or topic to your course, you must first enable editing on your course. To do this:

1. Click the gear icon at the top of your course's main page

2. Click the second option that appears in the drop-down list titled, "Turn editing on"

Now you can add a section to your course. To do this:

1. Scroll to the bottom of the course page

2. Click the option titled, "Add weeks" 

Once you have created the number of weeks you wish to add to your course, you can change their names, add activities, and relocate them to somewhere else in your course.