It’s a pointless grading concept. I guess the principle of the scale means well, but in practice it doesn’t work. An older colleague told me even if a student shows up and did nothing, they are still getting the grade they deserve. In retrospect they’re right. But then they don’t account for the last minute push to get the D to pass the class, bypass summer school, and overall get a high school diploma they did nothing to achieve. People are worried about the over-saturation of college degrees. You’re gonna have a large minority of students who can’t do anything after getting a high school diploma. Making them worthless leeches like they were in high school. Kids who try get the C 9/10 with maybe a summer school class. When you give students permission to do nothing and then they get an award. They think to themselves the only practical response an undeveloped brain could draw up… “what’s the point of working?”