All my math teachers told me growing up that I had to learn arithmetic, algebra, geometry, all these formulas… but for what? 

Their sole argument when I pressed them with “why?” Because I wouldn’t always have a calculator in my pocket.

Well, the joke’s on them. Not only do I ALWAYS have a calculator on hand (sometimes literally in the case of my smart watch), but it can do a lot more than basic arithmetic. 

The phone in my pocket, the watch on my wrist—both of these have scientific calculator qualities (real TI-84 stuff) built in. They can do just about everything but graph. 

But you know what else? I’ve never had to use that power for anything in the real world.

I’ve never once had to calculate the slope of anything. I’ve never had to use linear equations for my job.

What I have needed to do was quickly figure out percentages in my head to help a customer.

Use probability to make a decision.

Measure off a table and do complex fraction stuff to get the merchandising in an Apple Store as close to perfect as possible. 

None of this was learned in a classroom. I learned it all doing work in the real world. That’s why I always ask, “What’s the project?” when learning something new.

(And I still have that calculator in my pocket. I wonder what they tell students nowadays why they have to learn those seemingly abstract facts?)

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