The Grading System

Our grading sytem goes from F to A and that works. But why should the average grade be the best grade? In Fance, the grading system goes from 1 to 20, and 10 is average. If you get that you are doing fine and if you get 20 you are the best student you could ever be. It is almost imposable to get a 20 but if you get a 10 your grade does not suffer. A 10 is the equvalent to a C in our grading system and a 20 is equvalent to an A. I think we should switch our grading system to the French way because the average grade should not be the best grade.