Financial Literacy Unit 3: Income & Employment (Wages, Salary, Commission, Tips + Taxes). Teach students how income really works with this complete, ready-to-teach Financial Literacy unit on Income & Employment. Students learn the differences between wages, salary, commission, and tips, and apply their knowledge through real-world tax and employment forms. This unit also introduces students to essential life skills, including calculating gross vs. net income and completing key IRS and employment