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Words that your teacher said were essential to know and understand when you attended school.

Xenophon PCDGS

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Being a mathematician, the word "rhombus" of that ilk has never come into any conversation I have had since leaving secondary school in 1961/2 and university in 1966.

I am sure there are website members with countless examples from their schooldays that have never been used since.
 
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dangie

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Not being a mathematician, but involved in engineering all my life mainly in power generation, despite having to learn it at school I don’t think I’ve ever used the word ‘calculus’.
 

johntea

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I got a D at Maths GCSE which unfourtunately meant I got to do it all over again in college, except it only took a year and was in a modular format which was much better for my brain as you foused on one area at a time then took an exam rinse and repeat about 4 times throughout the year (although it looks like they axed the modular option many years ago now)

About the only thing I learnt from it all is a calculation involving the numbers 80085 ;)
 

Xenophon PCDGS

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At my secondary school in the late 1950s, there was always one "bright spark" whose humorous sense bordered on the ridiculous, at the cost of many subsequent detentions, and in the Lower Fourth year Mathematics lessons, he had the temerity to ask the teacher if his dad's mum set opposite his mum's mum at the table, could that be described as being a "parallelogran"...:rolleyes:. A double detention was the price paid for that class interruption.
 

DerekC

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Not being a mathematician, but involved in engineering all my life mainly in power generation, despite having to learn it at school I don’t think I’ve ever used the word ‘calculus’.
Bit surprised by that - also an engineer (mostly railways) and sometimes had quite a lot of differentiation and integration in working stuff out like acceleration curves and times and distance run. Not sure the word "calculus" got used though.
At my secondary school in the late 1950s, there was always one "bright spark" whose humorous sense bordered on the ridiculous, at the cost of many subsequent detentions, and in the Lower Fourth year Mathematics lessons, he had the temerity to ask the teacher if his dad's mum set opposite his mum's mum at the table, could that be described as being a "parallelogran"...:rolleyes:. A double detention was the price paid for that class interruption.
:lol:

If this is turning into a jokes thread, I will share the first mathematical one, as related by my dad (he was a maths teacher).

Q: Two cats sitting on a tin roof - the wall supporting one end collapses - which one slides off first?

A: The one with the smallest mew (mu).

On reflection, I suspect that's only funny if you are an engineer or a maths teacher!
 

TheSmiths82

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Not a word but a sentence "You can't generate energy, you can only transfer it and create different types of energy" e.g Thermal to Kinetic. That helps me to understand how the world around us works.
 

AndrewE

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Not a word but a sentence "You can't generate energy, you can only transfer it and create different types of energy" e.g Thermal to Kinetic. That helps me to understand how the world around us works.
I think the energy released by nuclear fission might challenge that...
 

TheSmiths82

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I think the energy released by nuclear fission might challenge that...
It was over years ago, but in most cases that is correct, even if it is a simple car engine analogy. That said I think the concept of nuclear fission existed back then.
I suppose solar and wind energy can challenge that too but that is perhaps for a separate thread :D
 

AndrewE

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Being a mathematician, the word "rhombus" of that ilk has never come into any conversation I have had since leaving secondary school in 1961/2 and university in 1966.

I am sure there are website members with countless examples from their schooldays that have never been used since.
I'm not a mathematician but have written lots of reports of scientific and other investigations, and Rhombus is a useful word when you are describing a situation or figure which involves one. I'm surprised you didn't propose "frustum" (the solid/3-d version) which is far less well-known!
It was over [?] years ago, but in most cases that is correct, even if it is a simple car engine analogy. That said I think the concept of nuclear fission existed back then.
I suppose solar and wind energy can challenge that too but that is perhaps for a separate thread :D
Nuclear fission has been recognised for well over a century, and getting energy out of it for a bomb was an objective for both sides in WW2. Solar and wind do fit in with your premise - it comes from the sun (which is a fusion reactor) and after that is only changed into electricity by either clever pv chemistry or mechanical and electrical engineering.
 

Xenophon PCDGS

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I'm not a mathematician but have written lots of reports of scientific and other investigations, and Rhombus is a useful word when you are describing a situation or figure which involves one. I'm surprised you didn't propose "frustum" (the solid/3-d version) which is far less well-known!
I don't want to become known on this website for finding the least-well known parts of verbosity (perhaps I might have crossed the forbidden line already. :oops: ).so I settled for a middle line in citing "rhombus".
 

dangie

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The only times I’ve ever heard ‘rhombus’ & ‘trapezium’ mentioned is in a pub quiz when you pretend to know the answer to a question.
 

AndrewE

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I'm not a mathematician but have written lots of reports of scientific and other investigations, and Rhombus is a useful word when you are describing a situation or figure which involves one. I'm surprised you didn't propose "frustum" (the solid/3-d version) which is far less well-known!
Correction... and I'm amazed I haven't been picked up by any pub quizzers here, let alone our resident Grecian!
A Rhombus is a nice skewed square which becomes a diamond.

A trapezium (which is what I was thinking of) and especially an isosceles trapezium, is the bottom half of a cut-off triangle! If you rotate it around its vertical axis you get the base of a cone, if you do that with 4 axes it's the bottom half of a pyramid. Both are called frustrums(?)

In my defence, it's a long time since I left school - or wrote a report either!
 

Xenophon PCDGS

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Correction... and I'm amazed I haven't been picked up by any pub quizzers here, let alone our resident Grecian!
A Rhombus is a nice skewed square which becomes a diamond.

A trapezium (which is what I was thinking of) and especially an isosceles trapezium, is the bottom half of a cut-off triangle! If you rotate it around its vertical axis you get the base of a cone, if you do that with 4 axes it's the bottom half of a pyramid. Both are called frustrums(?)

In my defence, it's a long time since I left school - or wrote a report either!
I did not say I did not know of them, just that they had never been part of a business or social conversation that I had since leaving school then university. Just think, in two years time, it will be 60 years since I left university.
 

PGAT

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Despite what many say on the internet, “The mitochondria is the powerhouse of the cell” doesn’t get you the mark in GCSE biology
 

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