This resource provides a detailed overview of the 16th amendment to the U.S. Constitution. Content includes a focus on income tax, the history and purpose of the amendment, and the incomes subject to taxation.

Use this interactive graph to gain an understanding of how taxes increase as your income goes up. The y-intercept line shows the base tax amount for no income.

Starting in 1920 the United States had three presidents who followed conservative policies. Read about their policies, and determine whether they made the U.S. a more economically sound country. [pdf]

A comprehensive guide for learning all about taxes with definitions, formulas, different types of taxes, solved examples, and practice questions.

This instructional activity teaches the basics of taxes: what they are, who pays them, what kinds exist, and what they're used for. Students learn how people's income is taxed, how much revenue taxes generate, and how taxes and...