As you work on your classification papers, remember these things:
1. Classification papers organize many different items into categories; division papers identify and explain the different components of a single unit.
2. Classification papers should contain at least three categories. Remember, a category is not an item or example. Specific items make up a category.
3. The purpose of a classification paper is to make useful distinctions among categories. As with the contrast papers, "useful" means not obvious. Don't point out things that are clear to even the most casual observer.
4. Classification schemes must contain only one principle of classification. If you are classifying by size, don't bring color into it. If you are classifying by personality, don't bring athletic skill into it. If you are classifying by dress style, don't bring age into it. Keep reminding yourself what your principle of classification is.
5. Avoid overlapping categories. Overlapping categories almost always occur when one violates the single principle of classification. If you are classifying students, for example, don't have a category of "studious" and another category of "popular." Some students fit both categories. The principle of classification isn't consistent.
6. Be conscious of the impression or opinion that your category develops. Make sure that impression or opinion is consistently developed.