You can assign XP (experience points) or progress goals to your classes in the "Assignments" tab.
Your students will be sent an email with the assignment and due date. The email will also give them information about how far they are from that goal (meaning, what other skills they need to do, or how many points they are missing). The Assignments view will show you which of your students completed the goal on time, late or didn't do the assignment.
In the "Students" tab, you'll find more information about individual student progress.
More class overview options are available under the "More details" button in the "Students" section.
Keep in mind that the course must be done in order, so you cannot ask all students to open the same skill at the same time, unless they have reached it and “unlocked” it already.