Long paragraphs.

Anytime that a student asks, “How many sentences should a paragraph have?” the instructor automatically thinks that the student is only going to do the minimum. The minimum will not earn an A, especially an A+. Instead of asking this question to try to not write much, write to prove your knowledge. Instructors want to see that their students get the concept, which is why they assign a paper in the first place. If you are only trying to get away with writing five sentences in your paragraph, you probably are not going to show the instructor that you know enough to earn an A+.