Gordon and Fay surveyed approximately 600 students about the prevalence and desirability of teaching practices that helped students prepare for exams, as well as common test scoring manipulations used to transform poor results in acceptable results. There are times when teachers must change grades if the entire class or most of the class is performing poorly. This is considered a “bell curve” in which teachers add points to the grade to make it higher. Curved grades are not the only grade alternation. There is also the “retake the exam or test” method. This encourages students to not have to worry about doing their best on their first try because they will be able to catch up. Just that it's not the worst, it's even worse when students are allowed to retake or redo the assignment as many times as necessary and teachers accept the highest grade (Gordon and Fay). Still, teachers don't think it's a mistake, according to Gordon and Fay's survey. Instructors believe this is acceptable since students are able to demonstrate