I would think

that if you can use a computer well enough to watch a Flash presentation on a website, you can probably read a food label, but the FDA's Make Your Calories Count - Use the Nutrition Facts Label for Healthy Weight Management is pretty cool nonetheless. It's downloadable, too, so if you want to teach this topic to others, you can do so without having to be online. It requires Flash capability for the interactive modules, and a PDF reader for the print versions.