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.
For this reason, it can be helpful to simulate the conditions of a timed exam before the actual day: pick a practice question, find some lined paper, set a stopwatch, and see how you do!
When composing essays, many students stop and read over each paragraph once they finish it, making sure that it`s well-written and free of errors before advancing to the next one. This approach is entirely logical when there`s no time pressure involved, but it can actually work against you during an exam.
However, this thinking process does not reflect the reality of the situation. In fact, even if your teacher hasn`t given you any hints about the essay question, you do know what it will be about: the concepts and ideas you`ve discussed in the course.
For example, if you`ve been assigned a five-paragraph expository essay for a high school class, you`ll probably spend the most time on the writing stage; for a college-level argumentative essay, on the other hand, you`ll need to spend more time researching your topic and developing an original argument before you start writing.
Unless if you finished way ahead of schedule, don`t worry about major revisions like reorganizing the structure of the essay–it`s better to hand in an essay with an imperfect structure than a paper that`s impossible to follow because you had to stop halfway through the revision process.