
Academic Introduction: This is the type of introduction you would use for a standardized test or a history paper. A typical standard introduction answers one or more of the six basic questions: who, what, when, where, why, and how. It gives the reader an idea of what to expect. You should try to stay away from simply restating the question unless you are limited by a word count and need to get to the point quickly. Your basic academic introduction or thesis statement is best used as the follow-up sentence to one of the more creative introductions described below.
Says: This introduction is clear and to the point, and will prepare your reader for the ideas you want to discuss. However, it is rather unexciting and will not immediately engage your reader. As mentioned, you should try to preface it with a more creative statement. In addition, it makes one typical error. One should usually avoid using contractions in a formal essay, for example, "Iâve."
Create Mystery or Intrigue in your Introduction. It is not necessary or recommended that your first sentence give away the subject matter. Raise questions in the minds of the admissions officers to force them to read on. Appeal to their senses and emotions to make them relate to your subject matter.

Says: This introduction is indeed compelling, but it raises important questions about appropriate content. Be careful to avoid writing a personal essay that is far too personal. You do not want your reader to think that you might have character weaknesses that prevent you from handling stressful situations well.
Learn how to avoid the use of personal pronouns in formal writing.
Question Introduction: Many admissions essays begin with a question. While this is an easy way to begin an essay, admissions officers may perceive it as a "lazy introduction." No one wants to read an essay that begins with such tacky material as: "To be or not to be?" or "Are you looking for an applicant who has drive and determination? Well, Iâm your guy." If you are going to use a question, make sure that it is an extremely compelling one and that your experiences provide answers.
Introduction (writing) - Wikipedia

Don't Start Your Essay with a Summary. If you summarize, the admissions officer does not need to read the rest of your essay. You want to start your essay with something that makes the reader want to read until the very end. Once you have drawn the reader in through the first one to three sentences, the last sentence in your introductory paragraph should explain clearly and briefly what the point of the whole essay is. That is, why you are using this person, place, or thing. What does it say about you?
How to Write an Essay Introduction (with Sample Intros)
Says: This is a very effective introduction to an essay about your personality. Mentioning pride is a good way to indicate how important your beliefs and values are to you. In a sentence like this, however, it would be better to use "Throughout" rather than "Through." "Throughout" better expresses the widespread, expansive tone you want to give this sentence.