Start with the research question, aim and objectives. Then go through the various components of the method: study design, target population, inclusion/ exclusion criteria, intervention, outcome measures etc
@Fatimah, just speak about Your research design and results! Experienced researchers will follow You and ask some questions about the research, which may be a good input for further work! Good luck!
A systematic presentation always helps in putting things in proper perspective. I am assuming you have already introduced your problem and a brief reference to the literature about it. Get directly into the aspects of your problem and how you want to solve them as part of your research methodology. Then explain your procedures followed either theoretical or experimental. After each of the procedure give the results, the analysis done, discussion of the results, and your findings.
Fatimah, focus in the main objective of your methodology. Then put yourself in the place of the people that are listening to you and try to understand what will be important to them to learn...
I agree with others that you should start with your research question. I recommend to my students that they begin a presentation like this with a simple statement of your goals, such as, "The purpose of my research is..."
The point here is that your research methodology should be determined by your research question. In particular, research design is all about making choices, which means that you need to demonstrate how the choices you have made will meet the purposes of your research. So, as you present your decisions about methodology, be sure to "justify" them by linking them to the overall goals of your research.
I agreed with all previous scholars' comments to start with research objective & research questions. Because these 2 will determine and drive your research method.
Despite getting prepared for a systematic presentation to a panel of experienced researchers, if you can it will be good to understand each researcher's background in the panel e.g. whether they are quantitative, qualitative or mixed methods researchers etc. Because they might ask you from different angles of research methods. You also need to know other research methods beyond what you currently know, prefer and the method you are going to present so that you can understand other method's strengths and weaknesses and how you can defend / justify your method based on your research objective and research questions.