In my Business Communication class, I require students to give two (sometimes more) presentations using visuals… without words! Only graphs.
This forces students not to depend on powerpoint as a script and to rediscover -I hope- the power of images.
Logic+Emotion makes the point:
Effective communication is everyone’s job—whether you are trying to sell in a concept or convince a client. Visual Thinking can help us take in complex information and synthesize it into something meaningful. In an increasingly fragmented and cluttered world, simple imagery, metaphors and mindmaps can get people to understand the abstract and make your ideas tangible.