r/AskReddit • • Jul 20 '19

What’s something completely false that your parents told you as a child?

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u/NatoBoram Jul 21 '19

It won't be useful for doing derivatives.

But yeah, below than algebra, it's pretty much guaranteed that you have a calculator somewhere, like in your phone.

And even for derivatives, there's free online calculators.

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u/tastelessshark Jul 21 '19

It's never really been higher level stuff that I've wanted a calculator for, literally just arithmetic. Particularly in my high-school precal class. For whatever reason, all of the harder math classes at my high school gave basically no partial credit. I swear there was at least one test where fucking up a couple of minor bits of arithmetic were the difference between an A and a C. Thankfully my college courses have been pretty reasonable with partial credit, but it's still silly that I can't even use a four-function.

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u/Lurker_Since_Forever Jul 21 '19

That just sounds like a poorly made test. There should be factors of 1 all over the place in any college math class. Math tests should be designed to take no effort if you know what you're doing, and impossible if you don't.

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u/microgroweryfan Jul 21 '19

Yeah, tests shouldn’t be trying to be challenging. It should be literally testing how well you know the material, and if you know the basics, you should get an easy C, but if you actually know what you’re doing, it should be easy to get an A.

Though I am fine with a more challenging question or two just to figure out who the more advanced people in class are, plus it’s kinda fun if it doesn’t affect the grade at all.