It was never supposed to be, except that people got the idea that students need coercement to actually do the homework (so that they would actually learn and not tank the teacher's statistics) and grading it was the "have a hammer, problem looks like a nail" solution that teachers found.
It was never supposed to be, except that people got the idea that students need coercement to actually do the homework (so that they would actually learn and not tank the teacher's statistics) and grading it was the "have a hammer, problem looks like a nail" solution that teachers found.