Engage students in a U.S. history and economics lesson through regional trading practices amongst Native American tribes of North America. This simulation and accompanying PowerPoint allows students to simulate trade between tribes, and helps them begin thinking about economic terms such as: surplus, inventory, and supply and demand. The simulation is meant to accompany Ch. 1, Sec. 1 of the McDougal Littell text, "The Americas: Reconstruction to the 21st Century." However, it is adaptable for any study of Native American groups, and therefore adaptable to different grade levels and subjects. It is fun activity and the students really grasp the concept that geography is a strong determinant in trading practices and abilities.