By Dave Ouellette Submitted On February 19, 2009
One of the easiest rules of thumb in “teaching personal finance for kids” is to give them a quick lesson in the “value of money” and compound interest using the “Rule of 72”. The “Rule of 72” is a basic and simple way of explaining compound interest to your children using simple arithmetic and money (they all want to learn how to get more money!). For convenience in teaching this rule of thumb to children is that 72 is a convenient choice of numerator, since it has many divisors that are easy to remember: 1, 2, 3, 4, 6, 8, 9, and 12. Although present day digital scientific calculators and spreadsheet programs provide methods to find the accurate doubling time, the rule is useful for illustrating the rule using quick mental calculations or when only a basic calculator is available.
In finance, the Rule of 72 is a method of determining the doubling time a one time investment. For impact, it can also be used to illustrate how fast debt can grow. Simply stated, if you divide the annual rate of return into 72, that will tell you approximately how long it takes to double your money.
For example…
Take a savings account that receives 3% interest. 72 divided by 3 = 24… It would take approximately 24 years to double that deposit. Over a 48 year span, the money would double twice (that hardly keeps up with inflation!)
Another investment scenario may achieve 9%. That would mean the doubling period would take 8 years and it would double 6 times in that same 48 years… a significant difference!
Now how do you actually illustrate this with children?
My favorite way is to raid the penny jar. (you will need at least 100 pennies).
Start off by giving a child 10 pennies and you keep 10 pennies telling the child that they are getting 9% on their savings and that you are only getting 3%.
Count to 8 (each number representing 1 year) and double the amount of pennies for the child. The child will notice that you have not earned twice the amount of pennies yet.
Continue counting and double them again at 16 and again at 24. At this point, double your own stack of pennies once. You will have 20 pennies and they will have 80 pennies. They will get the point when you reinforce that you accepted a lower rate of return. Make a game of it trying different rates of return… make sure that you have enough pennies!
Teaching finance to kids in a fun way that they understand today will help them make wiser and more knowledgeable decisions for themselves in the future.
In these tough times, a knowledgeable “wealth management advisor” that can help you plan your way through the financial obstructions and challenges you face with a growing family is an important professional to use during your lifetime. As an independent agent, Dave Summerfelt of Hub Okanagan Financial [http://www.hubokanaganfinancial.com] in the BC Interior. has a unique approach to exposing your potential for wealth as well as protecting the wealth that you have already accumulated.
Dave Ouellette spent 5 years working with Dave Summerfelt as a Personal Financial Advisor, mostly in the area of life insurance, mutual funds, debt management, RESP’s, RRSP’s, RRIF’s and company Retirement Savings Programs. Although no longer licensed (by choice), DaveO still has a keen interest in financial investment and protection.
Dave Ouellette covers many topics in his articles, all of which he has had hands on experience. His favorite topics are fly fishing, fly tying, ice hockey, internet marketing, investing, food and cooking. He has 2 operating websites and invites you to visit his fly fishing site [http://www.best-in-british-columbia.com] at Best in British Columbia and his internet marketing site [http://www.page1performance.com] at Page 1 Performance.
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