Free Market Rules Economic Curriculum (Units 21-30)Each of our lessons are presented in a kid friendly format so that your kids will understand the basics of free markets and specific ideas that will help them understand how the world really works! Each 4 week unit centers around a specific question. Here are the topics for Units 21 30: What can central banks do to our money? How do boom and bust cycles actually work? How does a business work? What is a monopoly? What are taxes? How do people from