You can add yourself to a class and make your profile a "Teacher" profile so that all levels are open on your profile. This makes it easy to jump around and try student activities that will correspond with your lesson plans. You can also move through the game without completing all the levels.
Here's how to make yourself a teacher
- Go to the "Students" on the top of your dashboard.
- Select add a student.
- Create the student and switch the "make teacher" button to on.