AQA Unit 3 Mathematics 13 June 2012 - Unofficial Mark Scheme [43603H] [GCSE]

Scroll to see replies

Reply 140

JDee

Original post by PrinceUpsb

For UMS:

90% = A*
80% = A
70% = B

and so on... always.

I'm aware but the actual UMS score changes depending on different grade boundaries & raw marks.

Reply 141

PrinceUpsb

Original post by JDee

I'm aware but the actual UMS score changes depending on different grade boundaries & raw marks.

To get a B overall = 210 UMS
He already has 127 UMS.
210-127= 83 UMS required on this paper for him to get a B overall.

84/120 =70% therefore this is a B grade. Regardless of raw marks.
I am speaking just of UMS.
He asked 'if I get a C on this paper will I get a B overall'- the answer is yes as he could get 83/120 (69.1%) which would be a C grade, on this paper, and still get a B overall.

See below for original quotes:

Original post by charliehavana

I really want to get a B in maths overall, but if I get a C on this paper, will I still manage to scrape a B, do you think? I have 127 "points" overall, a B for Unit 1 and a B for Unit 2.

Original post by PrinceUpsb

To get a B overall you need 83/120 marks on this paper. 84/120 marks is the lowest B you can get, so if you were to get a C on this paper it is unlikely you would get a B overall. If you get a B or higher on this paper you will definitely get a B overall :smile:

Reply 142

charliehavana

Original post by PrinceUpsb

So, if I get a (really) high C, I could still get a B overall? (Sorry, I don't quite understand the UMS points part!)

I'm pretty sure I could get a B on this...the more I think about the exam, the more it worries me hahah :') I presume it would need to be only a couple of marks off of a B to still get the overall B?

Sorry for all the questions! Also, I'm a "she" :P

Reply 143

PrinceUpsb

Original post by charliehavana

Sorry for the gender mixup!

Basically, yes, it is possible for you to get a C on this and end up with a B overall. I can't tell you how many marks as I don't know how the raw marks/ UMS correlates, but I would probably guess you can only be either 1 or 2 marks below a B. If you get a B or higher on this then you will guaranteed get a B overall

Reply 144

charliehavana

Original post by PrinceUpsb

Ah, got it. Thanks ever so much! Fingers crossed :smile:

Reply 145

PrinceUpsb

Original post by charliehavana

Ah, got it. Thanks ever so much! Fingers crossed :smile:

To make things fair regardless of the difficulty of the paper, exam boards convert your raw marks into a 'UMS' mark. This means that someone taking a really hard test may only get 50/80 marks, whereas someone the following year may take an easy test and end up with 60/80 marks. If everyone sitting it finds it 'generally' easy, the raw marks to UMS conversion will be lowered. This means that both people would receive 100/120 UMS, for example.

The actual paper is out of 80 total raw marks.
This test has a total maximum possible UMS of 120.
Depending on how hard the paper was found by students, raw marks will be converted to UMS.
These grade boundaries are not released until day before results day, but on TSR there have been a few suggestions of possible grade boundaries...

66/80 - 108/120 (A*)
52/80 - 96/120 (A)
41/80 - 84/120 (B)
33/80 - 72/120 (C)

As I said before, you need 83/120 (or more) on this paper to get a B overall.
84/120 UMS marks is a B grade, meaning that 83/120 is the highest mark for a C grade. So, if you get a very high C grade it is possible for a B overall.

Reply 146

charliehavana

Original post by PrinceUpsb

As I said before, you need 83/120 (or more) on this paper to get a B overall.
84/120 UMS marks is a B grade, meaning that 83/120 is the highest mark for a C grade. So, if you get a very high C grade it is possible for a B overall.

Oh, I see! Teachers talk about grade boundaries being higher or lower :smile:

I did count through my paper once I'd finished what I could, and marked myself on what I could get (I know it's not accurate, of course!), or taking away marks/partial marks for questions I didn't answer or understand, and I remember giving myself 40-43/80. Of course it will probably be different when marked by the board, it's just a habit of mine.

Hopefully it'll be enough. Thankyou for your help! :smile:

Reply 147

naz2you

hello all i am a teacher so if u have any questions on ums i may be able to help.

someone put up mark scheme but left out feq questions

Reply 148

Medical-al

Hello, can anyone upload the actual paper, please? Thanks.

Reply 149

TheUnknownbone

Original post by naz2you

hello all i am a teacher so if u have any questions on ums i may be able to help.

someone put up mark scheme but left out feq questions

Hello, i would like to you to see if these could be correct.
Question 1: (x and y perimeter)
2x=5y

2:2x+2y = perimeter

3:total perimeter as x and y =14x because of subsitution. i multiplied all sides by 5, subsituted in 2x for 5y and added them together 5x+5x+2x+2x=14x
if you can check this i would be grateful