1.In the introduction, clearly identify your subject–in this case, the group you are classifying.
provide some specific descriptive or informative details to attract the interest of your readers and suggest the purpose of the essay.
Finally, be sure to include a thesis sentence that briefly identifies the main types or approaches you are about to examine.
Begin each body paragraph with a topic sentence that identifies a particular type or approach. Then go on to describle each type with specific details.
Arrange your body paragraphs in whatever order strikes you as clear and logical–say, from the least effective approach to the most effective, or from the most common type to the least familiar (or the other way around). Just make sure that the order of your body paragraphs matches the arrangement promised in your thesis sentence.And add the real experiences with it.