This resource is great for a an introductory or extension assignment, as well as a sub plan assignment, no outside sources are needed. The worksheet utilizes informative text and illustrations to provide a foundation of knowledge over the following standard: SS.6.E.1.3 – Review the concepts of supply and demand, choice, scarcity, and opportunity cost as they relate to the development of the mixed market economy in the United States. A 10 question assessment is on page 2 of the worksheet that ass