07.09.06 Defines supply and demand and compares and contrasts barter/trade systems with monetary systems
http://www.socialstudiesforkids.com/articles/economics/supplyanddemand1.htm
Barter/trade video - https://www.youtube.com/watch?v=wHY5cdExNa8
https://www.brainpop.com/math/dataanalysis/supplyanddemand/
Barter System vs Currency System: What's the Difference? (reading and questions) - barter_system_vs_currency_system_what_s_the_difference_.docx
Barter System versus Currency System Venn Diagram- barter_system_versus_currency_system.docx
Basic Economics: Supply and Demand (reading and questions)- supply_and_demand.docx