The route to a better presentation has been detailed in many previous blog posts. If I could give you only one tip to improve your next presentation it would be in considering your p2, the supportive media.
Illustrate, don’t annotate.
When you have considered what the “So what” of your message is, you should have constructed an arc determining how you will convince your audience to move from where they are at the beginning of your all to where you would like them at the end and this makes up your story. Rather than considering that you will detail every one of those steps using words, support your narrative with illustration. This will allow the audience to understand the current theme you are discussing without being distracted by the text behind you so they can concentrate on what you are saying.