Compare and Contrast
Graphic Organizers compare - to examine (two or more objects, ideas, people, etc.) in order to note similarities and differences; to compare two pieces of literary work (Webster's. p 416): contrast - to compare in order to show unlikeness or differences; note the opposite natures, purposes, etc., of: Contrast the political rights of Romans and Greeks (Webster's. p 442).
compare liken, assimilate, similize, liken to, compare with; make or draw a comparison, analogize, relate; metaphorize; draw a parallel; match; examine side by side, view together; weigh or measure against, contrast oppose, set in opposition, set off against, set in contrast, counterpose, note similarities and differences (Chapman, 1977) .
For a shorter paper, the above might represent three paragraphs; if you are writing a long paper and have a great deal of information, you may choose to write about each point, A, B, and C, in separate paragraphs for a total of six. However you decide to organize, make sure it is clear why you are examining this subject. You might be able to compare apples and oranges, for example, but why would you? Include any insights or opinions you have gathered. And yes, in general, three is the magic number. While there is no hard-and-fast rule that precludes creating a paper based on two points, or four, or five, a three-point discussion is manageable, especially for complex or abstract subjects. At the same time, a three-point structure helps you avoid oversimplifying, especially when addressing controversial topics in which discussions tend to become polarized–right or wrong, black or white, for or against. Three-point treatments encourage discussion of the middle ground.