Presentations should compliment and augment your lecture; not overwhelm, distract, or confuse your students. There is lots of research on cognitive overload and working memory that supports some key design elements that will help create better presentations that allow your content to enlighten and connect with your students.
This video covers the basics on key presentation strategies when using PowerPoint.
Included in the video:
Determine the goals of your presentation and include a introduction, body, and conclusion.
Your introduction should have a clear topic and objectives, introduce terms and jargon, and establish a relationship with the audience. The body of your presentation must be logical, match your audience's level of understanding, and be clear, concise and correct. The conclusion will summarize, recommend actions, and show how the met the stated objectives.
Three Phases of Presenting