It is currently Sun Dec 04, 2016 8:14 am

 All times are UTC

 Page 1 of 1 [ 3 posts ]
 Print view Previous topic | Next topic
Author Message
 Post subject: Pate's VR practice paper 3 vs math rulesPosted: Fri Oct 24, 2008 11:57 pm

Joined: Fri Oct 24, 2008 10:54 pm
Posts: 1
Location: Swindon
Hello!

Reading this forum for some time, now I have a question too.

My DD will try it at Pate's and obviously we've been looking through Pate's practice papers available on the school's site. Paper 3 question 1 puzzled me a lot until I realized that some expected answers do contradict to basic math rules of operations (multiplication and division should be done before adding and subtraction). Instead, expected answers come out when operations are done as they go left to right.

Example:
1-D) If A = 1, B = 2, C = 4, D = 9, E = 20, what is D x D â€“ A Ã· C?
Well, correct answer to this is: 9*9-1/4 = 80 and 3/4, or 80.75
The expected answer is: (9*9-1)/4 = 20 (E)

Obviously, in this example it is easy to spot that correct mathematical answer doesn't fit into offered multiple choices. However, next example is not that obvious:

1-J) If A = 0, B = 1, C = 22, D = 35, E = 57, what is C + D x A?
Correct answer is: 22 + 35 *0 = 22 (C)
Expected answer is: (22 + 35 ) * 0 = 0 (A)

My DD does well in maths and knows what the correct order of operations is. She was stuck with this task until we looked up in the answers and figured out what she was expected to do. My DW suggested that this is due to the fact that primary school curriculum doesn't expect children of this age to know priorities of math operations and therefore all calculations are supposed to be done as they go left to right.

Now I come to my questions.

Is it really that children are not expected to follow math rules on 11+ VR tests but should rather follow simple left to right approach?

What if a child does calculations according to math rules and gets correct, but not expected answer? Would this be regarded as mistake and can this be appealed if it comes to this?

I really don't understand why following basic math rules should leave a child with lower scores.

Top

 Post subject: Posted: Sat Oct 25, 2008 9:30 am

Joined: Thu Jan 12, 2006 3:29 pm
Posts: 625
Hi maths

It is not necessarily the case that what you see in a practice paper will appear in the tests.

There are a few publications that either ignore rules of maths or, more likely, rules of maths have been overlooked.

Generally, when rules of maths have been discussed on the forum it is accepted that questions on the real papers can be worked out from left to right without the use of brackets.

In the preparation process it is better to by-pass those questions that are incorrect and focus on those that can be completed correctly.

An alternative view is that in a multiple choice paper one of the answer options will be correct irrespective of the order that the sum is worked out.

Regards

Mike

Top

 Post subject: Posted: Sat Oct 25, 2008 9:58 am

Joined: Wed Feb 27, 2008 8:59 am
Posts: 2001
Hi - This was recently raised in VR Forum.

viewtopic.php?t=7765

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 3 posts ]

 All times are UTC

#### Who is online

Users browsing this forum: No registered users and 1 guest

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum

Search for:
 Jump to:  Select a forum ------------------ FORUM RULES    Forum Rules and FAQs 11 PLUS SUBJECTS    VERBAL REASONING    MATHS    ENGLISH    NON-VERBAL REASONING    CEM 11 Plus GENERAL    GENERAL 11 PLUS TOPICS    11 PLUS APPEALS    11 PLUS TUTORS    INDEPENDENT SCHOOLS    11 PLUS CDs/SOFTWARE    11 PLUS TIPS    PRIMARY    SEN and the 11 PLUS    EVERYTHING ELSE .... 11 PLUS REGIONS    Berkshire    Bexley and Bromley    Birmingham, Walsall, Wolverhampton and Wrekin    Buckinghamshire    Devon    Dorset    Essex    Essex - Redbridge    Gloucestershire    Hertfordshire (South West)    Hertfordshire (Other and North London)    Kent    Lancashire & Cumbria    Lincolnshire    Medway    Northern Ireland    Surrey (Sutton, Kingston and Wandsworth)    Trafford    Warwickshire    Wiltshire    Wirral    Yorkshire BEYOND 11 PLUS    Beyond 11 Plus - General    GCSEs    6th Form    University