1. Click on the Classes tab (or the down arrow next to it, which displays a dropdown menu).
2. To the far right of each class on the Classes page (or below each class in the dropdown), click on Assignments.
3. You'll see a list called "Current Assignments." Click the "View All Students" button to the right of each assignment.
4. The names of all students to whom this lesson is assigned will display under the lesson name. Click the grey gear to the right of the student's name.
5. From the dropdown menu that appears, select "Mark Complete."