I think many people design their presentations as documents like I do. I recently reviewed a presentation by a well known educational speaker that was more than 140 slides. Right off the bat I was a little put off. While the message was valuable, I'm not sure that that many slides were needed. Many of them were inspirational quotes. They were nice, but I'm not sure that the contributed enough to be vital to the communication.
The article "Research points the finger at PowerPoint" made an impression on me. I am interested in learning more about the cognitive load theory. Is this why people's eyes glaze over during presentations? What are the implications for how information is presented to students? I think it would be interesting to explore.
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