The Power of Visuals to Persuade: An Inconvenient Truth and Teachers' Images

Last night I had the opportunity to watch Al Gore's documentary, An Inconvenient Truth. I realized how powerful his visuals were. His images showed the impact of global warming through charts and through simulations. As he was talking, I did not doubt him but I felt unconvinced. However, as I saw a simulation of the impact of global warming on icecaps and the potential flooding in areas like Florida, I saw the horrible possible future. I was moved. His images were convincing.
I wonder how powerful are the images that teachers use in the classroom? Are they compelling images? Do those images move students to new view points? To greater understanding? To more higher level thinking skills? Or do they just decorate a presentation?
What is your truth about visuals in your classroom? Can they convince students as to what winter is the Northeast is like?




