Online middle school economics lessons

Lessons 1 & 2: Give And Take
Concepts: opportunity cost, alternatives, trade-offs, problem solving, charts, graphs, calculators.
From Focus: Middle School Economics
http://ecedweb.unomaha.edu/lessons/fems1.htm

Lesson: How Has the Constitution Shaped the Economic System In The United States?
Concepts: economics, civics, private property, free enterprise, choice, self-interest motive, competition, markets, prices, role of government
From Focus on Economics: Civics and Government
http://ecedweb.unomaha.edu/lessons/fecg1.htm

Lesson: What Are the Economic Functions Of Government?
Concepts:  economics, civics, economic functions of government
From Focus on Economics: Civics and Government
http://ecedweb.unomaha.edu/lessons/fecga.htm

Lesson: The Colonial Worker's Web
Concepts: goods, services, producers, consumers, self-sufficiency, specialization, interdependence, barter
http://www.econ-fun.com/sample_lessons.htm

Lesson:  Why Nations Trade
Concepts: economics, geography, opportunity cost, absolute advantage, comparative advantage, specialization, terms of trade
From Focus on Economics: Geography
http://ecedweb.unomaha.edu/lessons/FEOG1.htm

Lesson: Limiting Trade
Concepts: economics, geography, tariffs, quotas, embargoes, licensing requirements, standards (health and safety), subsidies, infant industry, strategic industry, exports, imports, terms of trade
From Focus on Economics: Geography
http://ecedweb.unomaha.edu/lessons/feoga.htm

Lesson: Places and Production
Concepts: economics, geography, gross domestic product (GDP), choropleth map, measure of value, double counting, final goods and services, flow of product, consumer spending
From Focus on Economics: Geography
http://ecedweb.unomaha.edu/lessons/feogx.htm

Lesson: What Is a Stock? or Who Owns McDonalds?
Concepts: economize, ownership, profit, risk, social studies, language arts
From Learning for the Market: Integrating the Stock Market Game Across the Curriculum
http://ecedweb.unomaha.edu/lessons/mark1.htm

Lesson (Grades 4-6): Homer Price (The Doughnuts)
Concepts: capital resources, increasing productivity, law of demand, quantity demand, language arts
From Economics and Children's Literature
http://ecedweb.unomaha.edu/litdough.htm

Lesson (Grades 4-6): The Great Brain
Concepts: economic incentives, language arts
From Economics and Children's Literature
http://www.umsl.edu/~econed/greatbrain.htm

Lesson (Grades 4-6): The Real McCoy
Concepts: increasing productivity, patent, language arts
From Economics and Children's Literature
http://ecedweb.unomaha.edu/lessons/realmccoy.htm