Friday, June 17, 2011

Encounters of The Math Kind

Padawan has spent part of the evening working out a complex math problem that involves multi-step problem solving, exchange rates, percentages, and algebra. He does stuff like this all the time with money- real or virtual, but I thought I would blog about one of today's encounters of the math kind. (Yeah, its Roblox math- what else is there?)

I was going to be cute and write it out as a word problem, but...well..its just too complicated. So, I wrote it out as his thought process instead....

A little background so this makes sense:  On Roblox you can buy and sell virtual items for your avatar with 2 different forms of virtual money. TIX and Robux. Also, we both have accounts.

I want to buy a helmet that costs 5000 TIX.

I have 410 Robux.

I can exchange 100 Robux to get 889 TIX.

How many more Robux or TIX do I need?

(Figures that out)

I can get more TIX by selling T-Shirts to Mom.

The market fee is 10%.

How many Robux and TIX does Mom have in her account?

How many Robux will Mom have after she exchanges her TIX for Robux?
For every 10 TIX that equals 1 Robux.

Now I will list a T-Shirt for that amount and ask Mom to buy it from me.

How much profit will I have after the market fee if she buys a T-Shirt from me for that amount?

I'm still X amount of TIX short to buy the helmet.

How can I get more TIX?

I need to ask Mom to create X amount of new accounts because they automatically get 10 TIX, then I will get 9 TIX profit from each account after they buy a T-Shirt from me.

Ok, I need to make 64 new accounts. I'll ask Mom to make make 30 and I'll make 34 .
Oh, wait Mom has a Limited Edition hat in her stuff. I'll get her to sell it for the going market rate.

(I list it for sale.)

Look, Mom got her daily stipend of TIX and Robux.  Now we can trade in her TIX for Robux and she can buy another shirt from me for X amount of Robux.

(Figures that out, and I buy the shirt).

(Padawan trades in Robux for TIX)

Oh, if we visit each other's games then I'll get 10 TIX each from that, then Mom can buy another shirt from me and I'll have X amount of TIX.

Ok, I'm still short 400 TIX.

So now we only need to make a little over 40 new accounts. K?

All this from the kid who would rather do anything than formal math lessons...
Unschooling Rocks!   

Just wind him up and watch him learn!

Pictures Courtesy of (c) 2005 ROBLOX, Inc. All Rights Reserved. Used With Permission


  1. I love this! To tell the truth, my eyes kinda glazed over as I was reading this. Shows how much natural learning beats schooled learning in math any day.

  2. LOL. Mine too! Every time I proofread it.


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