Mr M's OCR (not OCR MEI) Core 2 Answers 18th January 2013

Thanks very much!

For 8iv I did:

log₂(x-3) - log₂x = 4
log₂(x-3)/x = 4
(x-3)/x = 2^4
(x-3)/x = 16
(x-3) = 16x
-1/5 = x
-1/5 = c

Reckon I'd get a few method marks even though the final answer is most likely wrong?

Yup. I averaged around 62 after doing 15 past papers. Now after today, I think I picked up around 40-44 marks

Guess it's the exam pressure or that I can't apply my maths fully enough!

Oh well! Well done to you for smashing it

Yup. I averaged around 62 after doing 15 past papers. Now after today, I think I picked up around 40-44 marks

Guess it's the exam pressure or that I can't apply my maths fully enough!

Oh well! Well done to you for smashing it

Do they alter the grade boundaries at all or do they stay the same Raw Mark? and if so... any idea what i would need for an A... i reckon i got 59..

haha well with the amount of work I put in, if I hadn't "smashed" it I'd have been very disappointed :P

Also my teacher is just a god, he is seriously brilliant.

Wow. That is a great shame.

If it is any consolation, if this pattern is repeated with other candidates, the grade boundaries will be adjusted to compensate.

The old age saying: "You get what you put in"

I have an awesome teacher as well; its you at the end of the day who puts ink to paper though tbh

Are you doing further maths by any chance

Hopefully. How would you suggest one can practice and prepare better for maths, rather doing past papers?

yes I am, haha.

I think past papers are very important but I would advise you to do all the End of Chapter Exercises in your textbook before starting them. The more maths you do the better you get. Once you have done C3 and C4 this will seem pretty straightforward by comparison.

How did you do 4ii as I got 440 which is wrong?

That's really true, thanks again

By the way, are you covering the Mechanics unit on next Friday?

You further mathematicians are geniuses, honestly!

Good luck for your other exams

Can someone do me a favour and tell me what the question 9 was as my friend has asked me to try it as she messed it up on the exam and wants to know how to do it! I'm hoping after getting 100 in this unit last year I wont now embarrass myself and not be able to do it haha! Thank you!

Thank you what other exams do you cover apart from core's? Further? Stats? Mechanics?

In the summer I post C1, C2, C3, C4, FP1, FP2, M1, M2 as this is what I teach. In January I post whichever units students happen to take in my centre.