To draw a parallel, a lawyer researches and reads about many cases and uses them to support their own case. A scientist reads many case studies to support an idea about a scientific principle. In the same way, a history student writing about the Vietnam War might read newspaper articles and books and interview veterans to develop and/or confirm a viewpoint and support it with evidence.
You need to be sure to understand everything clearly when you choose an essay topic. Do not hesitate to ask questions if there are some unclear points. The more you understand the simpler it is for you to write a successful research paper. If the indistinct issues are still at large, it is advisable to leave this topic be and simply select another one. You need to show the readers that you master of the topic and not a confused newbie who does not know what he or she is talking about.
Your thesis should express the main idea of your paper without listing all of your reasons or outline your entire paper. It should be a simple statement, rather than a list of support; that’s what the rest of your paper is for!
Although it may seem counter-intuitive, writing your introduction first may be more difficult to accomplish than starting with the meat of your paper. Starting by writing the main points (focusing on supporting your thesis) allows you to slightly change and manipulate your ideas and commentary.