Your literature review should have the following components:
Introduction: Provide an overview of your topic, including the major problems and issues that have been studied.
Body: This is where you actually talk about the literature and your findings. There are a few different ways you can structure this section. Your professor may have a preference, so be sure to ask them first.
Thematic: You may have noticed specific themes emerge as you did your reading; if so, this may be a good way to organize your literature review. For example, if your topic is behavioral problems, perhaps you would discuss different ways that principals have addressed these problems.
Chronological: To use the example above, you may have observed that the way principals deal with behavioral problems has changed over time. If that's the case, perhaps you want to give a historical overview of the literature.
Methodological: There are a number of different types of methodologies used in research; here's a list of research methodologies compiled by the American Psychological Association. In educational administration, you might encounter empirical studies, field studies, interviews, case studies, etc. Perhaps you begin your review by discussing empirical studies related to your topic, and then you move on to discussing case studies.
Conclusion/Discussion: Summarize what you've found in your review of literature, and identify areas in need of further research. Make sure to mention any gaps in the literature - things you think should have been researched, but were not.
Synthesize, don't summarize. Here's an excellent example of synthesis originally created at NC State University. The overall topic is women in World War II.
Use quotes sparingly: Since the purpose of a literature review is to talk about many different articles, you won't be discussing any one article in great detail. NC State University suggests that there are a few cases where it's okay to use quotations:
Make sure not to misrepresent the author's ideas.
Let's look at an example. Here's a direct quote from an article:
This quote might lead you to believe that Kirschner & De Bruyckerec believe in the concept of digital natives. However, in this case, they are describing the thoughts of another author (Marc Prensky). In fact, Kirschner & De Bruyckerec's article argues that the concept of digital natives is a myth - in fact, it's right in the title of their article:
As the person selecting the quotation, I could have been clearer about whose ideas I was expressing. Make sure you understand the author's intent when you're writing about their work.