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by rmunn
14 days ago
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I have a calculator (and many other tools, of course) in my pocket at all times, now... and yet I don't pull it out very often. Because I can add $1.99 + $3.49 faster in my head ($2 plus $3.50 minus two cents = $5.48) than I could get the result by pulling out the phone, swiping my access pattern, tapping the calculator app, and punching in the results. Heck, even if I had a dedicated calculator that only required pulling it out and pressing an On button, I'd still come up with the result faster than I could punch the buttons. It's definitely worth it for kids to invest the time it takes to learn the little shortcuts involved in mental math: that effort gets repaid many times over during the course of a normal human lifetime. |
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It was the same back then: Some quick mental math was often faster than using a calculator, so that's what I used first. The calculator came second.
I reject all notions that these are mutually-exclusive concepts.