Powerful imagery techniques that help you teach
As well possessing as the ability to see while listening, we evolved to be able to imagine scenes while listening, as we do when we listen to a radio play or story.
An effective way to utilise this ability is to turn the projector to ‘no-show’ when telling a story or describing a scene. This technique allows learners to mentally create images without interference from a screen, and the ‘imagination effect’ ensures the message is more likely to ‘stick’.
Here a lecturer uses metaphors that would be difficult to draw or find in an online image search, but which can easily be imagined and understood by those listening.
 Johnson, M. K., & Raye, C. L. (1981). Reality monitoring. Psychological Review, 88(1), 67-85.