Just echoing a class I had in high school.

My social studies teacher ran the whole year as "micro community." There were three different classes per year, and each class was a community. Each student had a role within the community, and performed actual job duties necessary to keep things functioning. For example, I was a banker and had to cash checks. After tests, we got checks based on test scores, so you got (fake) money to spend on stuff. We had to pay a utility bill or he would turn off the lights and not use the projector for notes. The kid running the power company would collect that money.

The best part was the stock market. Each community was also a company whose share value depended on overall test scores. So you could invest in whichever class you thought would score the highest.