3.1: Reading- Using Economic Models 3.2: Outcome- Math in Economics 3.3: Reading- Purpose of Functions 3.4: Reading- Solving Simple Equations 3.5: Outcome- Graphs in Economics 3.6: Video- Graph Review 3.7: Reading- Creating and Interpreting Graphs 3.8: Reading- Interpreting Slope 3.9: Reading- Types of Graphs 3.10: Putting It Together- Economic Thinking 3.11: Why It Matters- Economic Thinking 3.12: Glossary- Economic Thinking 3.13: Outcome- What Is Economics? 3.14: Video- Scarcity and Choice 3.15: Reading- Understanding Economics and Scarcity 3.16: Video- Resources 3.17: Reading- The Concept of Opportunity Cost 3.18: Reading- Labor, Markets, and Trade 3.19: Reading- Microeconomics and Macroeconomics 3.20: Outcome- Economic Models