Free Market Rules Economic Curriculum (Units 11-20)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 11 20: How do we trade? What does money do? What should money be? How do we decide what to buy? What determines demand? How do we decide what to sell? How do supply and