The U.S. Department of Treasury site provides information on the Treasury, lesson plans for teachers, and a Kids Zone. There are lesson plans for personal finance, currency, and financial literacy. The Kids Zone has links for child friendly sites which include the U.S. Mint and the Bureau of Engraving and Printing.
To visit the U.S. Department of Treasury Kids Zone, please click here:
http://www.treasury.gov/about/education/Pages/kids-zone.aspx
Jim Sutliff