In most courses, levels are divided into Chapters. At the end of each Chapter, you'll encounter a Checkpoint – a mini-test designed to gauge your grasp of the skills covered in that Chapter.
With a Premium account, you can skip lessons or chapters as you wish. If you're using a free account, you can take Checkpoints to both assess your skills and unlock new lessons.
Completing a Checkpoint gives you access to:
- All lessons within its Chapter (if they were previously locked)
- The first lesson of the subsequent Chapter
- The Checkpoint for the next Chapter (if you wish to continue skipping lessons)
Please note, as we're continually enhancing this feature, not all courses are split into Chapters. If the course you're studying doesn't include Chapters and Checkpoints, you'll see one Chapter for the entire level.