One thing that really interests me is the different ways in which you can visualize information. Most often, text is simply not the best way. A picture really is worth a thousand words! Audio and video or animation of some sort can also be quite helpful in trying to comprehend something that may be difficult using just words. A good example is this post put together by Matt at the Signals vs. Noise blog:
Science presents some of the most interesting challenges for information designers. How do you help people grasp sizes, distances, and ratios that are nearly unimaginable?
You’ve got to check out some of the images he found, especially if you’re a teacher or parent. There’s some really interesting stuff! My favorite is the image of our solar system.
Read: Signals vs. Noise
Perhaps you’ve scene this presentation with great visualisation: http://ted.com/tedtalks/tedtalksplayer.cfm?key=hans_rosling&flashEnabled=1