Not primary literature, but a collection of other presentations given for another course, Education Technologies. They discuss how to give presentations in teaching. Many of them follow Edgar Dale's approach.

The study shows that the level of interaction of a demonstration can range from passive (more entertainment purposes) to engaged understanding. The greater the engagement, the better the learning. Predicting and discussing a demonstration resulted in better retention (correct prediction and explanation of the same demo on a test) than simply observing it.

Informative study looking at how what students get out of a demonstration can vary widely depending on how it is approached. I think this shows very effectively that demonstrations given without background instruction, context, or guidance can fail to show the intended concept. Observers need to know what to look for.