By that I mean in order to learn the fundamentals of psychology, you must see graphic demonstrations of the phenomena. I typically demonstrate any possible effect I can on PowerPoint. Students love the interactivity and really seem to 'get it'. Empty space - a common occurrence when designing is to place too much information on a slide so that the students cannot focus on anything in particular. It's free, it works, and your students will appreciate it.
Empty space adds impact.
It will pull the student's attention to the most important piece of information to make your message effective. I hope these 5 tips will help you make better PowerPoint slides. Of course, there is more to making a good presentation than is offered here. But, with practice and some care, your presentations can provide effective and coherent teaching aids. In case you didn't realize, PowerPoint 97 comes with a whole host of new goodies, and I really recommend it.