Teachers have little information other than grades. Envision one that focuses almost entirely on information safeguarding, one that only cares about the education system. How about theoretically that he does not do his homework in favour of past paper grinding. Showing off is not the same as examination, guys! Yay. Though generally there is a correlation, however, attitude also influences perception, so be careful, teachers. An unreliable heuristic, that is used anyways, because otherwise there would be no way to know a student’s performance before the real examination.