To deliver an effective presentation it is helpful to know a little bit about how we pay attention to, process, and remember information. Research about attention shows that our attention can be very focused, but it’s also limited. We can only pay attention to select things at a time and in fact multi-tasking is a myth. If we want to convey information, we first need to gain our students attention.
We also know that humans process information based on context, meaning and prior knowledge. If students have misconceptions or a lack of context, it’s more difficult for them to process new information. The more we can help students find meaning and provide them with examples and analogies they can relate to, the easier it will be for them to learn from our presentations.
The ultimate goal for our presentations is for students to remember the information. Yet humans have a limited capacity for the amount of information we can remember. A seminal study on memory showed that we can remember seven, plus or minus two, new pieces of information before we reach capacity. So cramming more and more information into a presentation, or speaking faster if you run out of time, are not methods that would result in students remembering the information.