I want to teach my children the power of compound growth, what are some demonstrations that they can be a part of?

cfogelberg 08/13/2017. 10 answers, 7.505 views
toddler pre-schooler activities money family-activities

Like all parents, we want our children to lead happy lives. One of the critical components to that is giving them the mental tools and experiences so that they can make good economic decisions in their life.

This is challenging because consumer marketing is very effective nowadays. It is also the cultural norm to spend all your income (or more) and save nothing. On the other hand, compound growth is incredibly powerful over time, if you'll only give it the time to take place.

So what this means is that one of the things we want to do to is help our children grow up with a healthy balance of delayed vs immediate gratification. Having the experience of benefiting from compound growth is a critical part of that, a memorable antidote to the pressure to consume now.

So we are looking for examples of compounding and exponential growth that we can experience together with our children over a shorter time frame (up to 1 year). To be clear, the experiences don't have to be financial or economic, they just have to be an experience. What can we do?

As context, are children are 2yo and 4yo - so they're young, but starting young and helping them have the right mindset from the get-go is very important to us.

As examples of things that don't count, and why...

  • "You can have 1 cookie now, or 2 cookies tomorrow, or 4 cookies the day after..."
    • But it isn't real compound growth, it's just Mummy or Daddy with a funny rule
  • Saving money in a bank account with them
    • We're doing this for the habit of saving, but UK interest rates are less than inflation so it doesn't demonstrate compound growth
  • Sharing our finances with them
    • We're doing this, but it's just another lesson and not an experience they're having
  • Encouraging them to save their money by reminding them of the benefits of delayed gratification
    • We're doing this, but it also doesn't demonstrate compound growth

EDIT:There are many good answers to this question, and others have highlighted other important aspects to good financial literacy. E.g. risk, consumption vs saving, the time required. Thank you everyone for sharing your insights and expertise!

5 Comments
7 anongoodnurse♦ 07/30/2017
It might help you to read about at what age a child can delay gratification, and under what circumstances. I think this is an interesting question, and I like @Jeremy Jameson's answer (I'd plant a tasty variety of pumpkin myself), but kids this age don't generally "do" delayed gratification, and if/when they do, it's minutes, not days.
11 AnoE 07/31/2017
-1 as I don't see how this is in any way, fashion or form possible or useful for 2/4yo's. If you had posted it not with the "toddler" or "pre-schooler" tag, then I would have had suggested the excellent book "The Entitlement Trap" which gives you a teaching tool (for older kids) to teach the whole money/banking/saving/spending issue and opens up the way to add interest in a practical way. But as the question is now, it is formulated in a way that makes it impossible for me to write an answer which does not deny your terms...
6 Rose Hartman 07/31/2017
I agree with some other commenters that 2 and 4 are a bit young for the lessons you're considering because of the long timescales involved. Why not just focus on the idea of "saving" now, to ingrain it as a habit, and then build on the whys and hows of that as they mature? Giving a copy of "War and Peace" to a toddler won't give them a jump start on reading --- fostering interest in language and attention to speech sounds will. One step at a time.
3 Delioth 07/31/2017
Related: XKCD
5 Cort Ammon 07/31/2017
"But it isn't real compound growth, it's just Mummy or Daddy with a funny rule" The amusing thing about that is, with interest in the economy, it's just banks with a funny rule!

10 Answers


Jeremy Jameson 07/30/2017.

Here's a great way that has nothing to do with money but instead something tangible that's easier for young minds to grasp.

Plants!

What you want to do is get your hands on some heritage-grade seeds - the sort that will grow plants that then make their own seeds that will produce more plants. Some sort of beans might be a good choice, but look into various options and pick something that will be interesting for the whole family (ideally, something tasty).

Involve them in the process of sprouting, transplanting, and caring for the plants. Explain how you are investing water, soil nutrients, time, and energy (both directly from your own work, and indirectly through exposure to the sun) to help the plant grow and make more seeds. Then when it comes time to harvest those seeds, start the process again - but this time aim to grow several more plants. They can help with more of the work during this 2nd round as they'll have already gone through the process with you once.

If you have the space, you could also go with something really impacting like a fruit tree. You can get an idea of how long this takes (multiple years) from sites like this one:

https://www.starkbros.com/growing-guide/article/how-many-years

Over time, they'll get a valuable lesson in how setting constructive processes into play through disciplined application of inputs over the long-term can yield impressive results.

5 comments
1 not store bought dirt 07/30/2017
A field of wildflowers you made can be pretty high impact, but mice or maybe some kind of bug might be faster, and getting overrun with rodents or crickets can be a lasting lesson especially if the kid has to participate in care.
4 anongoodnurse♦ 07/31/2017
I like the idea of using seeds. The only drawback is the seasonal nature of plant growth. It will take a year and a half for most types of plant seeds to grow, mature, produce seeds, and the seeds to sprout/grow to maturity again to show the multiplicative effect. Better to show it with just the seeds, e.g. 16 corn kernels can become thousands of corn kernels in several months, or one pumpkin seed can yield hundreds of seeds, and good food value in the flesh as well. In any case, these are long term lessons, too long for such young children to appreciate.
5 Jeremy Jameson 07/31/2017
Those are great points. I'd like to note one exception, however, in that the progression of compounding gains is rarely quick (especially in any natural sense), and where it is there is usually high risk involved (e.g. casino games). A weed like dandelion could probably quickly illustrate the concept with plants, but most people think of weeds as a nuisance rather than an asset (despite the edible nature of dandelions). That being said, I'll agree that this lesson would be more easily observed and absorbed by school age children.
2 anongoodnurse♦ 07/31/2017
Oooh, I didn't think of dandelions...(off to research dandelion life cycle...) Oh, and kids usually really like dandelions. You may have hit on the perfect plant for kids (but maybe not so much mom & dad)!
1 Ralph Bolton 07/31/2017
Not for compound growth, but just for the fun of it has taught me that it's also useful to try growing things in more than one place in your garden. Sometimes plants just don't grow, or pests will get the better of them or whatever - trying to grow the same thing in two or more places gives you a a little more chance of some success (nothing growing is a pretty boring experience). That's actually also useful information in financial planning - a bank might be guaranteed by government, so pretty safe, but many other options are not.

Honza Zidek 07/31/2017.

There are many board games in the market which are designed exactly in this way.

The overall idea of this kind of games is that you earn points (XPs) and money. Points are important at the end - they make the final score. Money is important only in the course of the game, you need it to get XPs but it is not the goal of the game. The games usually work in the way that at the beginning you have desperately little money. If you spend it for XPs at the beginning of the game, you lose. The game forces you to invest money to get the compound growth, then you may start spending it. Finding the right balance between spending and investing works quite like in the real life.

My first idea was Saint Petersburg (10+), Agricola (12+), Splendor (10+) but there are plenty other games, I believe you will find somthing also for younger kids. Find your local board game club or a good board game dealer (they are many events where you may play and buy what you like) and ask them for advice.

2 comments
2 Mark K Cowan 07/31/2017
+1, board games get economics, finance, negotiation, and strategy across to people brilliantly
Weckar E. 08/02/2017
I personally find Chicago Express to be a relatively simple board game that does this very well. The Age Rating is a gross overestimate in my opinion (though certainly not toddler-friendly).

josh 07/31/2017.

If they can count well then here is a a quick and easy challenge you can set them:

Challenge them to place a grain of rice on the first square of a chess/checkers/draughts board. Then have them place two on the second square, 4 on the next, 8 on the next,... They will soon realise the impossibility of the task and will learn the compound interest/growth is very powerful!!

This a well known problem. The total grains would be something like 18,000,000,000,000,000,000.

Now that they have seen the power compound growth you can make the game more interesting for them. As Valthek suggested in the comments, you can play against them by having two boards, one for you and one for them and millions style sweet/candy. You can then play the saving/investing strategy while they likely eat their sweets as they come. To make the game even more realistic have your partner or other neutral body act as a "banker" so that they dont think that you are just paying yourself out extra sweets or making up rules as you go.

5 comments
josh 07/31/2017
@HonzaZidek This very clearly shows "the power of compound growth" and provides a "demonstrations that they can be a part of?" as per the title.
3 Valthek 07/31/2017
I would suggest making the total squares a more manageable number, like 16. Make sure you have two or more boards, one for you and one for the children. Each day, give them a single candy (perhaps an M&M or a similar candy) or double the number of candies they have. Let them choose whether to eat them or not. They will soon see that you can easily eat some of the candies and still earn more candies than you earn.
2 josh 07/31/2017
@Valthek a nice idea having two boards - direct comparison is a lot easier than trying to get them to remember. It could be done on a snakes and ladders board as this might be more familiar to them. millionssweets.co.uk/content/our-range would be an excellent choice of sweet. When they are older you could introduce the snakes as unforeseen bills etc. That might emphases the "put some away for a rainy day" lesson.
3 Ole Tange 08/01/2017
"To make the game even more realistic have your partner or other neutral body act as a "banker" so that they learn that bankers make up rules as you go."
1 josh 08/02/2017
@OleTange Very clever. That made me chuckle.

Danikov 08/01/2017.

There are two fundamental problems here.

Firstly, any demonstration of compound interest, if done right, starts to require inordinate amounts of the thing being compounded to be a valid and engaging demonstration. This leads to the temptation to use something meaningless or without value, say a grain of rice, which means you're asking them to not only learn the lesson but learn it by projecting value onto something that is not valuable to them. Most children engage better in lessons that involve something that they instinctively value to maintain their interest.

The second is that most benefits of compound interest occur over large time periods, which can make it difficult to maintain the coherence of the lesson or tempt teaching it quickly with a game, which might undermine the necessity of patience that is required to benefit from compound interest.

One of the better examples of compound growth is with fast-breeding animals. In one week, with one division per day, one thing multiplies to become 64 things. If you project this behaviour onto small valued items, say candies like jelly beans, the quantities involved aren't too excessive (maybe curb it down to 6 days to ensure a 32 maximum). Place the jelly beans in a number of Petri dishes and label them. Check on them once a day when a treat is appropriate and offer the opportunity to take/eat some, but not all, of them from each dish (at least one must remain to 'grow'). Encourage them to leave some of the dishes more full to 'grow faster', maybe set one dish aside for yourself to demonstrate the benefits of not withdrawing at all.

Each night, you multiply the treats appropriately and, each week, you reset the experiment to keep the numbers manageable... maybe by sharing/eating your dish! There's also potential to exploring sharing lessons (if one child ends up with a lot more than the others), or saving accounts (offer to seal a dish for a week and only let them look at it/add to it from their other dishes), and have other analogies for good financial practices (balancing income and outgoings, maybe exploring debt; jelly beans could 'die' and turn into raisins) later on as they grow up.

This should prevent overrun with the numbers involved, gives easy-to-understand contrast, persists the illustration over a long period of time without losing engagement, and is engaging and interesting on a value level. It also might back-door a little biology as well.


Ryan 07/31/2017.

Both Jeremy Jamesons and Joshs answers are good examples, each having their own advantages and disadvantages. We have a group activity, and a solo game. Allow me to offer a third choice which has its own different advantages and disadvantages, a 2 player competitive game.

The version I came up with uses Money, but you can use almost anything you have a lot of. Money just has several perks compared to most other times, such as the fact that they should know the inherent value and power of money.

How you play is simple, each person starts with a set amount, and each person gets a certain amount of money per turn. One gets a set number of money per turn, a linear amount, while the other gets a compound amount. The players then take turns getting their money until many rounds later when the compound is the clear winner.

A solid example (using American currency here):

You both start with 5 pennys(or one Nickel). The linear growth person gets 2 pennys per turn, while the Compound growth person gets 1 pennys per 5 they already have per turn (no fractions)(a more visually simply way to view that, one penny per Nickel).

Using those rules, the linear path starts off stronger, but after the 12th round, the compound pulls ahead by a penny, and the gap just gets wider from there.

Like this, if the child chose linear, they will likely feel the superior choice, easily beating the adult early on. This shows that the linear choice feels good early on, because in the short term, its better early on. After a while though, the Compound method catches up and then surpasses it, showing that its better in the long run.

There is an essays worth of things you can do or say to help the child understand why compound wins in the end, but that is far to long to really get into in the answer (maybe Ill throw some thoughts in the comments if needed/requested). There is also the issue that the linear player looses, and many children hate loosing, among other things.

1 comments
2 Torben Gundtofte-Bruun 08/01/2017
I love this idea! Real money, simple rule, quickly done. It just takes a large handful of small coins.

Kevin 07/31/2017.

Video games, especially numbers-heavy games, often have exponential growth involved. If your kids enjoy video games and get to the point they thoroughly understand the strategies involved, they can understand compound interest.

For example, once your children are old enough, a grand strategy game like Civilization provides a powerful demonstration. These games have you manage a kingdom or empire with the goal of becoming the most powerful political state in the world. The winning strategy involves consistently investing and re-investing your resources into systems that allow you to gain more resources more quickly. If you become lazy about investing resources, spend them on investments that don't have good returns, or blow too many resources at once to be able to invest well in the future, you can quickly lose your ability to keep up with other kingdoms. But if you invest carefully and strategically, you can gain so much momentum that, by the end of the game, you are completely unstoppable.

The interesting thing is that the systems you use to gain more resources remain largely unchanged throughout the whole game. But as you build more cities and expand your empire, the same systems mean you gain more and more resources each turn - exponential, compound-like growth from simply having more video game money being invested and generating a return for you.

In the same way you need to continually reinvest your resources to grow more and more quickly in a grand strategy video game, you need to continually reinvest your money so that the same interest rate means your capital grows exponentially.


KareemElashmawy 08/01/2017.

Simulate a savings bank with a 'piggy' bank where YOU (the parent) take on the role of the "bank".

This is pretty straightforward since we already teach kids to save their money with a piggy bank. You simply extend this to include compound interest returns where you act as the banker. This means that at the end of each month you and your child add up the balance, compute the interest, and you deposit that amount. To make this effective though, you ought to use a high interest rate (5% or greater) with a small principal balance and a small deposit for each month (or week if you choose).

Example:

Parent gives Child a piggy bank with a 5% monthly interest rate for 1 year. At the end of each month, Parent and Child get together and count the money saved. Parent teaches Child the algebra needed to compute the 5% interest. Parent deposits that sum into the piggy bank. Next month they do the same, but this time, if the balance wasn't spent, Parent may directly show Child that the 5% interest also applies to the 5% from the previous month. Over subsequent months, Child will see the long term effects of it. Once Child learns enough algebra, Parent may teach them the compound interest formula.


pwcnorthrop 07/31/2017.

When I was in early elementary school I remember a children's book on this topic, "If You Made a Million". Might still be a little advanced for 2 and 4 year olds, but it was my first introduction to savings and compound interest. It may not be a demonstration per se, but could help reinforce the lesson.

It's actually a sequel to "How Much is a Million", which I also recall fondly. Indeed, in my memory they've run together, but this is probably more foundational and may be better for little ones.

Of course, it's a bit dated (80's/90's) and a million dollars (or pounds) isn't what it used to be (and savings accounts with over a percent interest!), but the concepts I think are generally still valid.


Owen 08/02/2017.

Compound growth is a great way for your kids to enjoy annoying their friends with long text messages.

For example, let's say you want to send your friend a flood of sunglasses emoji. You can type them one at a time:

😎
😎😎
😎😎😎
😎😎😎😎

Slow!

Or, you can repeatedly select-all, copy, paste:

😎
😎😎
😎😎😎😎
😎😎😎😎😎😎😎😎

Much faster!

Even though select-all, copy, paste feels like more work each step, you end up with a bigger flood of text in less time. With the power of compound growth, you can create unbelievably annoying texts and baffle your friends with how you can type so fast.

1 comments
2 SomeShinyObject 08/02/2017
If people don't see the humor in this, I will have lost all faith in the SE community.

T.E.D. 07/31/2017.

I believe the traditional way to introduce this topic (since 1256!) is by telling some version of the fable of the wheat and the chessboard:

Another version has the inventor of chess (in some tellings Sessa, an ancient Indian Minister) request his ruler give him wheat according to the wheat and chessboard problem. The ruler laughs it off as a meager prize for a brilliant invention, only to have court treasurers report the unexpectedly huge number of wheat grains would outstrip the ruler's resources. Versions differ as to whether the inventor becomes a high-ranking advisor or is executed.

For a toddler, you might suggest they try a few squares themselves, if you have some rice and a chess/checker-board to spare.*

* - I'd also suggest telling the "high ranking advisor" variant, rather than the "executed" variant.


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