This is just for Kara. A really common textbook for introductory economics classes is Greg Mankiw's. In the first chapter, he lists 10 principles of economics.
This guy has translated them into terms lay people can understand. Heads up: people are stupid. Just so you know what to expect... (video below fold)
Hat-tip: Megan McArdle
i absolutely love this. you did a fantastic job, and i will be sure to show my 10th grade class this. it's perfect for what we are covering this semester. thanks so much for your time and effort that you put forth to make the lives of our next generation more realistic.