alt Hacker NewsEvery class. Teachers think: "We want a curve, not everyone is getting an A". This pushes the teacher to ask questions not covered in the material. If they stick to what is covered it is hard to get a decent curve. So, in the end, teachers just hand out grades based on IQ, and there isn't a point of grades.
Courses aren't supposed to be pure memorization. If you can only answer questions directly covered in the material but can't apply it to new situations, you should not get an A.