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Old 20th May 2017, 01:25   #1 (permalink)
Psychophysiological entity
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Help with children's homework.

Just wanted to give the right answer when I congratulated her. I used to teach her to count with little yellow lemons from the garden. She's moved on a bit from then.

She was the first one to read a million words in her school, and , , , well, lots of things a proud granddad would like to boast about.

Really had to work to get it to say 'Copied'




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Last edited by Loose rivets; 20th May 2017 at 01:49.
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Old 20th May 2017, 01:51   #2 (permalink)
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At last. Don't know what to make of Photobucket. It seems really hard to get a photo to show, and then often does not have a box to see Copied.
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Old 20th May 2017, 02:27   #3 (permalink)
 
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More powers to her elbow. It's H, for anyone baffled.
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Old 20th May 2017, 08:24   #4 (permalink)

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More powers to her elbow. It's H, for anyone baffled.
Which you can see at a glance just by looking at "a", you can ignore the rest. What age and education level is this aimed at?
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Old 20th May 2017, 09:51   #5 (permalink)
 
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. What age and education level is this aimed at?
South Korea its kindergarten, UK its 15 probably.
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Old 20th May 2017, 10:04   #6 (permalink)
 
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Well....I'm as dumb as a bag of hammers then. Couldn't tell you where to even start.
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Old 20th May 2017, 10:14   #7 (permalink)
 
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It's a heck of a lot simpler than it looks, as the question has a lot of superfluous elements in the first function that are only there to confuse.
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Old 20th May 2017, 10:19   #8 (permalink)
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Not to me it isn't! Failed my first maths o level which seemed to be mostly algebra. Retake was more trig which I could do (back then!). All I need these days is + - x /.
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Old 20th May 2017, 12:26   #9 (permalink)
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She's in a Texas school for bright kids and is erm, gasp! I'm supposed to know - 13 I think.

It's not so much being gifted in one subject, it's the across-the-board straight A's that they look for. Mind you, like my professor son's comments, I'm not in favour of any kind of cramming. Time to think, and all that. He got the earlier school's attention when he protested the sheer hours the kids work but changes come slowly.

One American school radically increased break times and daily hours, and guess what, the grades went up.

We used to arrive at an old pre-war secondary school at 9:25 for some reason. Playtimes were okay, and lunch was over one hour. 15:30 we went home. Only once was it suggested we did homework but since most of the teachers were being begged to be there, only the leisurely hours made them stay. They didn't want to mark textbooks any more than we wanted to write in them. We had a 7,000 acre playground at Walton on the Naze, and very few people about after the war.

I can remember being really saddened by my two older friends passing their 11+. The change in them really changed my life, but they'd been a wonderful influence, so I'd been lucky about that. Two close friends of my age filled the gap, and one of them was determined to be an airline pilot. How we laughed. When he slapped his PPL on the table (not having said a word) it brought me up sharp. A stint of aerobatics in a Tiger was the life-changer, though maybe I should have stuck to flying upside down. I seemed to do it better inverted. Blood to the brain I suppose.

Back to big sums. Almost every night I read in on Quora or other science forums. While I can understand Fenynman diagrams reasonably well, to see them expressed as an equation is meaningless. Some of the simple math is fairly straight forward, but a lifetime with aircraft did nothing towards developing a mind that thinks in the language of science. Sad really, but last night 03:30 went by with me reading the different ways could calculate the energy and indeed size, of an electron. Trying to piece together all the different concepts of an electron's physical form - and indeed the length of a photon and exactly how it behaves when not in a vacuum is beyond fascinating.

However, just what the Universe is really like is my driving force. Summing every piece of information I can lay hands on is all the harder because there's no solid consensus. This is where pages of equations seem a bit pointless; so much calculation on tired old concepts that have never been made to work.

But try putting forward an idea without the math. One is lucky to get a pat on the head before being sent away.

Now here's a thing about thinking:- Years ago I suffered a crushing tightness in both eyes. I'd got floaters, but it didn't (at the time) explain the problem. After weeks of crying for help, I concluded I was trying to focus my eyes with the extraocular muscles, and like a sports injury they were going into spasm.

While diazapam switched off the spasm in 30 minuets, any notion that this was how it was happening was rejected. It was rejected again this year in casual conversation with two professionals. (I continue to mention it because it caused me a lot of real suffering and I just want to spread the word) Anyway, after seeing the 'shutters come down' on the idea - almost like hands over ears - blanking off of a concept they'd never heard of - That night I casually asked gooogle, Focussing eyes with extraocular muscles. The results astonished me. New research shows that not only do they make a major contribution to the eye's shape - and hence its prime focus setting so to speak - the muscles have 12 times as many nerve fibres as ordinary skeletal muscles to effect high speed processed control. I read two other sources before assuming it to be correct.

My frustration at not being able to get my gravitational hypothesis even discussed is, well, Impossible to conceive of a new idea without vast formula? Well my guess is that one can come up with a new idea that turns out to be valid, but it's the guys that structure the equations that will get the Nobel prize. But wait!!
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Penzias and Wilson were awarded the Nobel Prize for Physics for their joint discovery.
They were, but didn't they assume it was pigeon poo causing the noise and it really should have been the bloke that linked the radio noise with the problem solving needed in a distant university, that was the brilliant one? Just lateral thinking. Dreaming 'outside the box'. There has to be room for people that think like that but can't do big sums . . . doesn't there?
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Old 20th May 2017, 14:01   #10 (permalink)

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Well....I'm as dumb as a bag of hammers then. Couldn't tell you where to even start.
If you can't do

4 - (-2) = 6

then you must have missed out on the "number line" in about second year infants.

Last edited by Gertrude the Wombat; 21st May 2017 at 08:34.
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Old 20th May 2017, 14:17   #11 (permalink)
 
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Meanwhile in the real world...who actually uses algebra?
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Old 20th May 2017, 14:27   #12 (permalink)
 
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Meanwhile in the real world...who actually uses algebra?
Me, most days, even in retirement.............
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Old 20th May 2017, 14:38   #13 (permalink)
 
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Meanwhile in the real world...who actually uses algebra?
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Old 20th May 2017, 15:52   #14 (permalink)
 
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Yes, let's try and be...
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Old 20th May 2017, 16:02   #15 (permalink)
 
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How did she get an A in writing her spelling is terrible! Modern educashun really!


I still wonder how I've managed to stay working at a high energy physics lab as long as I have, but I suppose somebody has to keep the Scientists from hurting themselves with sharp things.
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Old 20th May 2017, 16:26   #16 (permalink)
 
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troppo.... "Meanwhile in the real world...who actually uses algebra?"

Your laptop, tablet or smart phone incorporates algebra in the software....Boolean Algebra extensively used when writing software.
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Old 20th May 2017, 16:29   #17 (permalink)
 
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The problem is confusing arithmetic with mathematics. Arithmetic solves the real world problems of how many gallons you need to fly from a to b and how to get there. Mathematics concentrates on generating generic methods for solving problems. It is essentially a way of thinking in a structured way and being able to communicate complex ideas or methods for solving a problem.
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Old 20th May 2017, 16:55   #18 (permalink)

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Meanwhile in the real world...who actually uses algebra?
Me, not necessarily every day but certainly every week.
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Old 20th May 2017, 17:31   #19 (permalink)
 
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I'm with Troppo, either I don't realise I'm using algebra every day or questions like the above are beyond the point of sensible use and required general knowledge. Willing to be educated on any day to day uses though if anyone has any pointers.
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Old 20th May 2017, 17:41   #20 (permalink)
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Mathematics concentrates on generating generic methods for solving problems. It is essentially a way of thinking in a structured way and being able to communicate complex ideas or methods for solving a problem.
Quite true, but once you have learned how to solve a TYPE of problem, you can usually solve all problems of that type. Arithmetic is simply calculation, doesn't teach you anything more.
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