For all levels of education establish the difference between a need and a want. A need is something you need for survival and a want is a luxury item. Teach the concept of compound interest by doubling a penny each day for a month. Day 1 is one penny, Day 2 is two pennies and Day 3 is 4 pennies and Day 4 is 8 pennies. (continue to day 30 and the amount is about 5.3 million) Teach lower elementary math students using quarters, dimes and nickels. Combine the coins to build 10's.