The next section of a lesson can only be accessed once the current section is fully completed. A section is considered complete when you have watched the entire video and/or completed the interactive activity.
Once a section is complete, select the "Continue" button at the bottom of the page.
This will move you to the next section of the lesson.
If you have not fully completed the current section, you will see the following message instead of the continue button:
In order to continue, make sure you have watched the entire video or completed the entire activity in that section of the lesson.
Note: Each lesson is made up of multiple sections and each class has multiple lessons. You will receive credit for completing an entire class only after you have passed the final exam. Final exams are distinct from knowledge check quizzes and contain 10 or more questions.
For instructions on how to move to the next lesson in a class, take a look at our article How do I move to the next lesson of a class?