Developed in the 60s, Edgar Dale developed a theory of how much people remember based on how they encounter information. The further you progress down the cone, the greater the learning and the more information is likely to be retained. It also suggests that when choosing an instructional method it is important to remember that involving students in the process strengthens knowledge retention. PASSIVE LEARNING vs ACTIVE LEARNING
Can be beautifully summed up by the Chinese philosopher Confucius: “I hear and I forget. I see and I remember. I do and I understand.”
Presentations or lectures are difficult to keep the audience or students completely engaged. Remember the adult attention span is only 10-15 min. long. Therefore, as a speaker, you’ll want to utilize a number of techniques to keep your audience with you.
The following suggestions should not be considered a checklist, nor are you expected to utilize every technique. Think of them as tools for your presentation toolbox. This isn’t an exhaustive list, but class size can often determine what can be done as far as active learning activities. This is why you often hear faculty defending small class size, you can do more active learning more easily with smaller groups.