Although the conclusion paragraph comes at the end of your essay it should not be seen as an afterthought. As the final paragraph is represents your last chance to make your case and, as such, should follow an extremely rigid format.
If you have enough time left over, read your essay again and make corrections. When you`re working under time pressure, it`s easy to make grammar mistakes or produce hard-to-follow sentences; the final few minutes are your chance to clean up those errors.
Perfecting paragraphs is a time-consuming process, and, if you spend too much time editing before the essay is finished, you might have to rush through the last few sections or leave them out entirely. For this reason, it`s best to focus on producing a complete first draft before you worry about edits and revisions.
One way to think of the conclusion is, paradoxically, as a second introduction because it does in fact contain many of the same features. While it does not need to be too long – four well-crafted sentence should be enough – it can make or break and essay.
Your best supporting idea – the one that most strongly makes your case and, simultaneously, about which you have the most knowledge – should go first. Even the best-written essays can fail because of ineffectively placed arguments.
Start planning if you can. Although the situation described above sometimes occurs, it`s also very common for professors to give their students a fairly detailed idea of what an essay question will involve in advance of the test day.