Fun group trading activity where students use what they have learned about supply and demand to make the best deals they can trading resources and money their assigned country has for those of other countries. Takes approximately 7 days for middle schoolers. High schoolers probably would work through the process a little faster. Can be adapted to go faster. Included is information and group rotation schedules for the teacher with some ideas to help things run smoothly based on my experiences with this activity. Students love the negotiating especially. They will improve their speaking and persuasive argument skills. They will also use their higher thinking skills to predict what another group will want, to plan out trades that are the most beneficial to them, and to devise a strategy to get all of the resources they want and need from the various other groups.