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Edexcel A2 C3 Mathematics 12th June 2015

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Original post by tealover96
If the answer is right do they give full marks for the question
Or do they go through finding each method mark?


depend on how thorough/fast the marker is ...

if the answer is practically impossible to obtain by luck and/or incorrect workings, they will probably skim through.

if the answer is given (like in a "show"), then it would be marked step by step, and marker must be "convinced"
Original post by Rezaa
Guys can someone help me out please? I just wanted to know what I need on C4 for an overall A.

I got 249 UMS in AS
61 raw marks in D1 (2015)
61 raw marks in C3 (2015)
(Based on Arseys answers)


around 60/75 should do it fairly comfortably
Reply 3382
Avatar for Torag
Torag
Can some explain why in question 5b the tangent is calculated using 1/m??

https://a48aca6bcd82b5ada594d7397b730e907e9902c3.googledrive.com/host/0B1ZiqBksUHNYdUJldmdCUllHZ2M/Edexcel%20C3%20-%20June%202015%20Model%20Answers%20by%20Arsey.pdf
Original post by coolio41
Hey :smile: For question 5b I made the silly error of not flipping the gradient, and so continued with 24pi, how many works do you think I would get out of the 6, presuming the rest of the working was correct?

Thanks :biggrin:


3/out of 6 is probably about the right outcome
(it all depends on the marking scheme)
Reply 3384
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Rezaa
1
Original post by TeeEm
around 60/75 should do it fairly comfortably


Cheers :smile:
Original post by TeeEm
3/out of 6 is probably about the right outcome
(it all depends on the marking scheme)


Thanks :smile:
I only realised there was a question 10 with like 5 minutes left... Why did they put it right at the back????? -.-
Original post by Rezaa
Cheers :smile:


(even with a bit less you may still be ok)
Original post by anonwinner
I only realised there was a question 10 with like 5 minutes left... Why did they put it right at the back????? -.-


Banter :wink:
Original post by anonwinner
I only realised there was a question 10 with like 5 minutes left... Why did they put it right at the back????? -.-


Same with me. I did Q9 in the last 5 minutes because I thought C3 only had 8 questions.
Original post by paradoxicalme
Nope, many-to-one. Several x values match up to one y value. If it was one to many it wouldn't be a function.


Can you not say because it not a one to one? Other markschemes have said that
Original post by supreme overlord
Hey guys
So for 8(b) I screwed up and thought it was 2θ so my final answers are divided by two. How many marks would I lose?

Paper was definitely challenging but doable idk


I did the same :s-smilie: I did the proof in 8a without any problems but then copied it wrong in 8b :angry: and used 2θ instead θ.
I'm expecting 0 marks for 8b.
Original post by Mina Makin
Can you not say because it not a one to one? Other markschemes have said that


Yes you can
what would 55 or 56 be? anyone?
From the unofficial mark scheme I reckon I got 67 or 68 out of 75.

What wil I need in C4 on Tuesday for an A* in maths now?
Is there an unofficial markscheme for all the qs on this thread?

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Original post by MattEconomics
From the unofficial mark scheme I reckon I got 67 or 68 out of 75.

What wil I need in C4 on Tuesday for an A* in maths now?


Where's the unofficial markscheme?

Posted from TSR Mobile
Original post by PinkElephant16
what would 55 or 56 be? anyone?


High B most likely. Possibly an A if we're really lucky...
Reply 3398
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Torag
Original post by TruMuslima
Is there an unofficial markscheme for all the qs on this thread?

Posted from TSR Mobile


https://a48aca6bcd82b5ada594d7397b730e907e9902c3.googledrive.com/host/0B1ZiqBksUHNYdUJldmdCUllHZ2M/Edexcel%20C3%20-%20June%202015%20Model%20Answers%20by%20Arsey.pdf
Thanks :smile:
Original post by anonwinner
Yes you can

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