Essentially, the points that you get from the 20-minute lesson will be 50% of what you would earn from a 40-minute lesson. If, for instance, you get a rating of 5/5, you'll get 0.6 points for that lesson.

Essentially, the points that you get from the 20-minute lesson will be 50% of what you would earn from a 40-minute lesson. If, for instance, you get a rating of 5/5, you'll get 0.6 points for that lesson.