Editing a horrible paper is going to be a very frustrating time in your life. First, you need to get a red pen. Next, you need to look very carefully through each line. Then, when you find something that is wrong, you fix it with your red pen. Finally, you can copy that paper over again and put your perfect paper on display. Wa-la! Pat yourself on your back. Grading a horrible paper is going to use up all your energy.