Here is a great short movie by Dan Roam on the history of visual thinking. It is a great example of how we can improve learning.
SXSW 2010: Dan Roam on Visual Thinking from Teehan+Lax on Vimeo.
I would love to see more trainers put this type of thinking into their presentations. Specifically on ideas that can be abstract. I wonder if we can convert the iPad into a tool to make these types of presentations. Does anyone know of a specific tool / app for presenting through the iPad?