There are 11 levels in the course. Starting with level 2, the end of each level has a short, four-question level assessment (there is no final exam). You must score at least 75% or better (at least 3 out 4 questions correct) in order to pass the assessment and go on to the next level. If you donβt pass a level assessment, you will need to retake the level before you can attempt again. You can go through this process as many times as you need to until you pass the level assessment!