11. Use video and audio when appropriate
Use video and audio when appropriate. Using video clips to show concrete examples promotes active cognitive processing, which is the natural way people learn. You can use video clips within PowerPoint without ever leaving the application or tuning on a VCR. Using a video clip not only will illustrate your point better, it will also serve as a change of pace thereby increasing the interest of your audience. You can use audio clips (such as interviews) as well. Something to avoid, however, is cheesy sound effects that are included in PowerPoint (such as the sound of a horn or applause when transitioning slides). The use of superfluous sound effects attached to animations is a sure way to lose credibility with your audience.