Internal Revenue Service
Irs: How Taxes Affect Us Lesson Plans
This lesson plan will help students understand that taxes can have different effects on different income groups.
Internal Revenue Service
Irs: Proportional Taxes Lesson Plan
This lesson plan will help students understand that proportional taxes can have different effects on different income groups.
Other
Curriculum Link: Proportional Tax Definition
This site from Curriculum Link provides a somewhat brief definition of proportional tax and provides a graph as well. A good place to get a little background information on the tax.
Curated OER
Vat Theories Progressive or Regressive Who Pays What?
Explains progressive, regressive, and proportional taxes and applies them to the value added tax (VAT).