Council for Economic Education
Econ Ed Link: Lewis and Clark Barter With Native Americans
In this lesson you will define the term barter and give examples of bartering in several different areas. Find out how this system took shape and was useful to Lewis and Clark. This site is extremely informative and contains extension...
The Franklin Institute
Franklin Institute: Bartering for Goods
The Franklin Institute Online explains what bartering is and how it developed down through history. A lesson plan and quiz are also provided.