Before you do a presentation,you should make a really good preparation. Most students who do bad are the ones who are unprepared. First of all make sure you understand the actual topic because only then you are able to present your work well. Then oraganize your ideas logically and systematically. A good idea is to prepare some helpful notecards. Once you have finished with your preparation, present your work to your friends or to your family to see their reaction. Try to improve whatever they criticize. On the day of your presentation, make sure you look good and feel comfortable. Arrive in class before the audience, as you have to check the tools and equipment that you are going to use.
The most important part is the actual presentation. However once you well prepared you should not be too worried about presenting. There are only a few details you should be aware of . The number one rule is to speak loud and clear all the time, because if your audience is having a hard time understanding you, then they will