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 Post subject: Algebra in Exam
PostPosted: Wed Nov 03, 2010 4:51 pm 
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Joined: Tue Sep 21, 2010 12:48 pm
Posts: 67
Hello

My son's class is starting on Algebra next week. :!:

How complex are the Algebra questions in the exam, if Year 6 children haven't started doing it yet :?:

I looked in the library for maths books today, and Algebra wasn't included in the KS2 revision guides - I had to get KS3 books.

He say he hasn't done any with tutor so we've got 3 nights DIY - anyone have any suggestions on whether I should just do basic stuff eg 2a + 1 = 5 what is 'a'

or does it get a lot more complex than that :?:

Thanks


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 Post subject: Re: Algebra in Exam
PostPosted: Wed Nov 03, 2010 6:02 pm 
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Joined: Fri Oct 12, 2007 12:42 pm
Posts: 3810
Location: Chelmsford and pleased
If this is for an exam in 3 days time then just stick to the basic form of 5a + 6 = 31. I teach this with shopping. This morning I had £31, now I have 5 apples and £6. How much did each apple cost?

Otherwise here are the horrors from our area.
The worst I have seen in Essex are of the form

5x - 3 = 2x + 9

Or using knowledge of a triangle and putting letters in the corners as below and asking what type of triangle it is

3a, 2a + 20, a + 40


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 Post subject: Re: Algebra in Exam
PostPosted: Wed Nov 03, 2010 6:22 pm 
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Joined: Sat May 30, 2009 12:06 pm
Posts: 2093
Location: Birmingham
I have just asked my son and he says he can't recall any algebra being in the KE exam at all. That said, he can't recall where is locker key is at the moment so whether you want to trust in his memory or not is your decision!


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 Post subject: Re: Algebra in Exam
PostPosted: Wed Nov 03, 2010 6:38 pm 
The algebra is in the mental maths section.

Make sure he can solve something simple such as :

2x + 6 = 18
Just ask him what add 6 is 18. Hopefully he will say 12. Then say if 2x's are 12, what is 1x going to be.

Make sure he can substitute:

If x is 4, what is 3x + 3 going to be?

If x is 0.5, what is 4x + 2?

If x is 4 what is 4 1/2x + 3 going to be?

Keep it simple but keep drumming into him that x + 2 is x add 2 and 2x is 2 times x. You should manage this by Saturday without too many tears.


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 Post subject: Re: Algebra in Exam
PostPosted: Wed Nov 03, 2010 6:40 pm 
as maths answers may not be multiple choice, trial and error may be the next best step if the question is basic in nature. I have some that need the second to last answer to be square rooted as well to get to the final answer.


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 Post subject: Re: Algebra in Exam
PostPosted: Wed Nov 03, 2010 7:32 pm 
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Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6962
Location: East Kent
explain that they have been doing algebra since infants. It' s "number sentences" where you have to guess the missing number

eg 2 + [] =5

3 x [] =6

14 - [] = 2

most children are really chuffed that they have been doing algebra all that time without even realising.

this is a good game
http://www.bbc.co.uk/education/mathsfil ... ostie.html

and this

http://www.bbc.co.uk/education/mathsfil ... ice1a.html


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 Post subject: Re: Algebra in Exam
PostPosted: Wed Nov 03, 2010 8:47 pm 
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Joined: Tue Sep 21, 2010 12:48 pm
Posts: 67
Thanks for all your replies.

We've been working on the basic stuff, and he's picked it up quickly.

Yoyo, those games are great - really built up his confidence with the postman one :D


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 Post subject: Re: Algebra in Exam
PostPosted: Wed Nov 03, 2010 9:32 pm 
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Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6962
Location: East Kent
:D


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 Post subject: Re: Algebra in Exam
PostPosted: Fri Nov 05, 2010 10:34 am 
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Joined: Sat Jun 19, 2010 5:36 pm
Posts: 48
Location: Birmingham
Hi Brummum

I found the bonds 11+-12+ and level 5 books very useful as well as the GL Letts practice papers.

Probably late now to get these :( but you try primary resources or topmarks websites.

Good luck :)

_________________
Shinealight
Always looking on the bright side of life..!


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 Post subject: Re: Algebra in Exam
PostPosted: Fri Nov 05, 2010 1:36 pm 
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Joined: Tue Sep 21, 2010 12:48 pm
Posts: 67
My DH wants to do loads of maths, English etc tonight with DS, I thinkwe should just let him relax - if he doesn't know it now, he won't by tomorrow morning :!:

What will everyone else be doing - last minute cramming, or relaxing :?:


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