Animations can be used in a diversity of contexts within a presentation, but one of the most common is to simply control the rate at which information appears to students. So, for example, on a slide dedicated to discussing four aspects of a given topic, the relevant text and images can be made to appear gradually, so that each aspect is discussed thoroughly before the next even appears. The substitute, dumping all the information to the screen at once, and then working through it verbally, would seem to have the potential to distract and overcome the audience. So, this seems to be a situation where animation should clearly help.
Both presentations dramatically enhanced the students' scores, which were a bit below 40 percent correct in the first administration of the quiz. But the animated presentation bring scores up to 71 percent, while the animation-free version got them to 82 percent. Of the nine questions, only one saw the animated group outperform their static peers.
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