Good academic communication should include an introduction in which your topic and thesis is clearly defined, an analysis of your topic, and a clear conclusion.
Start out by introducing your topic, communicating to your audience why the topic is important, and providing enough background information to allow your audience to understand the analysis that is about to take place. Your introduction is also the logical place to embed your thesis.
All academic research demands analysis. Some projects lend themselves well to a cause/effect structure ("What caused hip-hop to emerge and what are some of the effects its had on American culture?), while other assignments require a pro/con format ("What are the positive aspects of stem cell research? What are some of the negative implications?). Some projects can easily conform to both modes.
Your conclusion allows you to demonstrate to your instructor that you have synthesized the information you found and clearly answered your thesis question (informative projects) or effectively supported your thesis statement.(persuasive/argumentative assignments).