Last year, at Global Learning Partners' Dialogue Education Institute, I facilitated a workshop called "Envisioning Learning: Visuals & Dialogue Education" in which we explored how using visuals can contribute to learning.
Below are two Prezi's that I shared during the workshop.
The first is called "A Picture's Worth". It outlines some of the reasons that we should use visuals in our learning design.
And here is a second Prezi that suggests some ideas on how you can integrate visuals into your next learning event.