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A comment on Do the math: too much calculus? (2012). Parent comment

Re:Do the math: too much calculus? (2012) by baldfat on Wednesday October 19, 2016 @04:01PM (#12747196)
The beauty of calculus is that you actually understand the Real World.

For example I taught my daughter factions this way.

Me: "These factions you see them? Now see these decimal points?"

Her: "Yeah I hate factions they are stupid!"

Me: "Factions are the only consistently real numbers below 1 and decimal points for the most part are made up numbers. 1/3 is 1/3 and never .3333."

Her: "I always thought it was the otehr way around."

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Re:Do the math: too much calculus? (2012) by yequalsx on Wednesday October 19, 2016 @05:20PM (#12747776)
The first sentence in Your last statement in your conversation to your daughter is profoundly wrong. Your daughter was not in any way made to better understand fractions by this interaction. By the way, .3333 is a rational number and therefore equal to a fraction.
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Re:Do the math: too much calculus? (2012) by BigJeffeRonaldo on Thursday October 20, 2016 @09:23AM (#12751933)
https://www.dpmms.cam.ac.uk/~wtg10/decimals.html

You can construct a complete ordered field from infinite decimals

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Re:Do the math: too much calculus? (2012) by gohrt on Thursday October 20, 2016 @03:34AM (#12750355)
Your idea did not translate into English. I think you are trying to say that most decimals we see in real life are approximations, not exact measurements, while fractions are exact?

This has nothing to do with calculus, though.

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Re:Do the math: too much calculus? (2012) by thesimpsons1022 on Wednesday October 19, 2016 @05:26PM (#12747826)
is there a reason you call them factions and not fractions?
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Re:Do the math: too much calculus? (2012) by fao_ on Wednesday October 19, 2016 @04:51PM (#12747562)
... Ohhhhhh.

I wish you would teach me calculus =)

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Re:Do the math: too much calculus? (2012) by fao_ on Thursday October 20, 2016 @09:06AM (#12751834)
This... might have come out wrong. What I meant was something along the lines of: You should teach, have you considered mentoring?
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