3.10. Exchange and Trade: Students explain how people engage in trade and the economic benefits of trade.
3.10.2. Distinguish between the use of money and barter
3.8. Wants/Scarcity and Producers/Consumers: Students make connections between the U.S. economic system and how it affects their daily lives.
3.8.2. Investigate ways in which people are producers and consumers and explain why they depend on one another