To explore the concept that people invest in themselves through education, the students work in two groups and participate in a mathematics game. Both groups are assigned mathematics problems to solve. One group is told about a special technique for solving the problems. The other group is not. The game helps the students recognize that improved human capital allows people to produce more in a given amount of time?in this example, more correct answers in the time provided, or in less time. Next, the students identify the human capital required for a variety of jobs. Finally, they learn about the connections among investment in human capital, careers, and earning potential.