What is a course level?
Updated
A course level is a measure of your achievement. More specifically, a course level represents how many skills to proficient you have achieved in a course.
On your learner homepage, your total level is displayed. This is the total cumulative count of all skills you've earned in every course you have taken.
Each level requires an increasing number of skill points to reach the next one.
When you're on an individual course or lesson, the level for that course will be displayed.