Appropriate age group(s):
13 up

Description of technique for teaching kids the value of money:
Virtual trading simulation teaches kids basics of investing, math skills, basic finance principles, and the importance of doing independent research. Great way to start a dialogue about what is going on in the world today. http://www.youngmoney.com/stock_market_game

Other comments or suggestions:
Free game where kids can win real prizes. Every player is given $1,000,000 in virtual money to invest. Parents can start private games to play with their children.