Interesting school in Chicago, supported by the Ariel mutual funds group, where K-8 students get to invest and manage real money as they study finance and economics:

From their brochure:

"...Each first-grade class entering the Academy receives a grant of $20,000. As students progress through each grade, they assume increasing responsibility for managing the portfolio. In middle school, the Junior Board of Directors is established to discuss investment performance and make investment decisions on behalf of their class. Upon graduation, the original $20,000 is given to the incoming first-grade class. Any profits accumulated in the account are split in half. One half is given back to the school as a class gift, while the other half is divided among the students as cash or matched contributions to a 529 college savings plan..."

Here's a quick overview, and there's also an article in Time Magazine about the school.