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 Post subject: Vertical sums or number linesPosted: Sat Mar 13, 2010 8:42 am

Joined: Tue Jul 31, 2007 9:37 am
Posts: 408
H

I spoke to my Year 2 son's teacher at parents evening yesterday, and the teacher gave some feedback. Any thoughts, please?

Teacher stated that DS1 struggles with 3 digit numbers, and went on to say if he did a sum such as 137-24, that he did not like the fact that DS1 works it out (correctly!) in a vertical sum format. The teacher prefers him to use a number line and count back.

Consequently, DS1 does not struggle with 3 digit numbers, but just chooses to use vertical sums; is there anything wrong with this method?

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 Post subject: Posted: Sat Mar 13, 2010 9:39 am

Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6966
Location: East Kent
schools don;t teach the vertical method until later, the numeracy strategy tries to get them to have a feel for numbers before teaching an algorithm.

trouble is it's difficult to ask a child to unlearn it. I know first hand as having been taught long division in one school I moved somewhere where they did short division first and I was told not to do long division, still can;t get the hang of short division

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 Post subject: Posted: Sat Mar 13, 2010 11:01 am

Joined: Sat Feb 13, 2010 11:02 pm
Posts: 420
That wasn't chunking be any chance?

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 Post subject: Posted: Sat Mar 13, 2010 11:27 am

Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6966
Location: East Kent
ah chunking!

actually once you get used to it it does make sense.

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 Post subject: Posted: Sat Mar 13, 2010 11:34 am

Joined: Sat Feb 13, 2010 11:02 pm
Posts: 420
yoyo123 wrote:
still can;t get the hang of short division

So what was it?

(I was looking for a tongue in cheek icon!)

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 Post subject: Posted: Sat Mar 13, 2010 11:39 am

Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6966
Location: East Kent
http://en.wikipedia.org/wiki/Short_division

confuses me even now , 45 years later!

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 Post subject: Posted: Sat Mar 13, 2010 2:33 pm

Joined: Tue Jan 22, 2008 2:36 pm
Posts: 459
Location: Rugby
Any maths teacher who is wedded to a specific methodology for teaching maths is quite simply in the wrong job!

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 Post subject: Posted: Sat Mar 13, 2010 2:37 pm

Joined: Mon Feb 20, 2006 1:29 pm
Posts: 1805
Location: Berkshire
Had the same problem with my boys, at that age.
As long as they are sure of their units, tens and hundreds place values you can teach them to use the vertical method, horizontally as well.
They can learn the school method and then use which ever is easier for them. With maths there can be a few ways to get to the same answer.

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 Post subject: Posted: Sat Mar 13, 2010 6:38 pm

Joined: Sun Mar 07, 2010 9:16 pm
Posts: 1440
We also had a similar problem. I had a quiet word with our son's teacher who very sensibly agreed to allow him to do the sums his way. As long as he got the right answer she was not concerned.

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 Post subject: Posted: Sun Mar 14, 2010 7:13 am

Joined: Tue Jul 31, 2007 9:37 am
Posts: 408
Thanks Bewildered and Fran 17. I do feel vindicated now, especially, as the the teacher agreed to accept my son doing vertical sums.

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