@Moldova - That is a great idea. I know that my daughter studied microeconomics in her social studies class and she really enjoyed it. They did an entrepreneurial project in which they had to develop several products for a store and bring to school so that the other students in the school could buy it.
It was like a little marketplace and everyone had so much fun. I think that it is a great introduction to microeconomics when kids get to experience something like this because the lesson becomes much more memorable.
Some of the kids made laminated bookmarks, painted pet rocks, and colorful jewelry. It was really amazing. The proceeds from the sale went to charity which was also nice.