Lessons are the basic unit of a course; they consist of a video plus the following exercises. Lessons need a clear learning objective that is laid out in the video and then applied in the exercises. It is critical that there is a clear mapping between the video exercise and the interactive exercises.
One video exercise
2-4 interactive exercises
No more than 1 multiple choice exercise
Note: you are not required to have any multiple choice exercises
Do not teach new material in interactive exercises