Writing essays and papers allows you to think long and hard about such critical issues as: What is democracy?
The professor will know that you have managed to cram a great deal of irrelevant information into your short-term memory. Remind the reader of your main point, but avoid repeating it in exactly the same words. It is the field of study which presupposes a lot of controversial questions, so you will pick up valuable debating skills.
You can even use the exam booklet or the back of the exam in order to write a brief outline, flow chart, diagram, or whatever form you find the most helpful in organizing your thoughts. Sometimes students find it difficult to focus on writing an essay when they have some pressing life problems, suffer from poor health or fail to manage their time effectively.
Choose the titles which correspond to your topic and approach. After sitting in a course of lectures and doing the required reading, you are more than capable of completing such a task.
The opening paragraph set out the general ideas you were going to explore, the three following paragraphs expanded on each of those ideas, and the final paragraph wrapped up what you had said.