At times when you listen to students talk about some of the challenges that they face when it comes to working on their papers, you might be surprised. There are some things that are really simple, yet for a number of students these can be some of the most challenging elements so far. The first and most important thing about writing and passing your paper is always to be prepared, more than prepared for it. In as far as preparation goes, you would be well suited to ensure that you know all the important sections of the paper that you are about to work on. This is important because you will need to understand what every single one of these sections are made of, and most importantly how to write them.
The abstract for example, is one of the most important sections of a good paper. There is no way that you can expect to hand in a paper that you believe is perfectly done, and fail to submit an abstract with it. That would be utterly preposterous, and in the long run, there is a good chance that you would only end up struggling to convince your audience that you have done a good work indeed. Why take your chances?
Taking that into consideration therefore, there is every reason for you to learn about how to structure this important part of your work. Before you do that however try and think about how important this is to your paper, and the contents. This is a section that is supposed to give a brief overview of the task you are working on. That is as simple a definition as you will ever get, and it is also as simple a definition as you will be able to get a hint on the structure of the abstract.
While you are preparing it, make sure that you do not take too much of your time than you need to write it. It should not be too long nor too short, and should still manage to capture what you need to have in it.
In most cases, a typical one should not be more than one page long, unless of course you are writing one unique research paper, and that would be slightly beyond your level at this point. If possible have a draft to work with before you write the final abstract.