Students learn about the different types of productive resources—natural resources, human resources, and capital goods. After watching a video and seeing pictures of productive resources used to generate electricity, they categorize them into the different types. They then sequence the process of how electricity arrives at a home to play video games by attaching a series of cards to a power line (string stretched between two students) along with the productive resources used in the process. Finally, they identify how consumers voluntarily exchange money for electricity and electric companies as producers use the money to purchase productive resources to generate electricity.