Methods Exam 1: Discussion!

[GeniDoi]

Hey all,

regarding Question 1.b), I forgot to sub in 1 all together. It was a 3 mark question. How many marks will I lose if I differentiated correctly?

You would have lost 2 marks, one for correct substitution into the derivative and one for the answer.

[chuck981996]

Did anyone else get the correct answer for 10bi using Pythagorus rather than similar triangles?

Hypothetically you could have used Pythagorus' theorum… can you post what you did?

[someone011]

Hypothetically you could have used Pythagorus' theorum… can you post what you did?

I have no idea, I tried to work it out again but couldn't. I definitely got the same answer though.

[keltingmeith]

I have no idea, I tried to work it out again but couldn't. I definitely got the same answer though.

Presumably if you got the same answer, you're fine.

[liamh96]

Hi guys,

Would I score a method mark for 9.b.ii) for writing the formula to find the probability but not subbing in any values?

[chuck981996]

Hi guys,

Would I score a method mark for 9.b.ii) for writing the formula to find the probability but not subbing in any values?

Yes.

[chuck981996]

Presumably if you got the same answer, you're fine.

Not necessarily: remember that comment on the 2013 Specialist Maths Exam 1 report? "There were several cases where incorrect working fortuitously led to a correct answer. Students should be reminded that in such cases, the final answer mark will not be awarded if it is not supported by relevant and correct working."

Just curious: did you follow the sort of reasoning I show in the attached photo? (just the 1st step)

[LFC_Kero]

I got 27/40

and 80+ % in all my SACS

is it still possible to get 35 raw study score?

[Jnf17]

Not necessarily: remember that supremely bitchy comment on the 2013 Specialist Maths Exam 1 report? "There were several cases where incorrect working fortuitously led to a correct answer. Students should be reminded that in such cases, the final answer mark will not be awarded if it is not supported by relevant and correct working."

Well there goes Q10bii... made a logical guess at 4 and therefore the area. Thought I'd still get an answer mark

[evilpancakeman]

I can't believe it. Using the solutions that Chuck posted, I got about 13/40!

What do you think that will net me?

[chuck981996]

Well there goes Q10bii... made a logical guess at 4 and therefore the area. Thought I'd still get an answer mark

Have a look at the photo I posted, is it similar to what you did? I don't think what you did was wrong, per se, I just can't definitively say it was right until I understand what you did

[arose]

Think I got 33/40, made silly mistakes but overall this exam was alright, required a bit more thinking than past exam 1s

[yoyoball]

I got 27/40

and 80+ % in all my SACS

is it still possible to get 35 raw study score?

It depends on how the rest of ur cohort did aswell. Say u go to a very competitive school abd everyone else aces the exam all ur sacs will get scaled aswell. And you also have exam two to go!! Theres still a possibility as long as u dont give up!!

[chuck981996]

I can't believe it. Using the solutions that Chuck posted, I got about 13/40!

What do you think that will net me?

Are you sure you're counting all the method marks properly? If you did get 13, that's been pretty consistently in the middle of the D+ band, although last year it was at the top of the D range. Forget about it, relax, and focus on tomorrow

[Jnf17]

Have a look at the photo I posted, is it similar to what you did? I don't think what you did was wrong, per se, I just can't definitively say it was right until I understand what you did

I wasn't the one who used Pythag Chuck Was just a random comment