ATAR Notes: Forum

VCE Stuff => VCE Mathematics => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Specialist Mathematics => Topic started by: dekoyl on October 04, 2009, 02:24:10 pm

Title: Explaining our working out
Post by: dekoyl on October 04, 2009, 02:24:10 pm: For example, when questions ask for "find the maximum height", when doing our working out, do we need to explain our steps?
Such as:
"At max height, k component of $v(t) = 0$ " or can we just do it?
Because I was used to writing stuff like "at maximum $\frac{dv}{dt} = 0 = ....$ "

Thanks :)
Title: Re: Explaining our working out
Post by: hyperblade01 on October 04, 2009, 02:42:28 pm: Personally I would as they can't mark you down for including it (unless you're wrong) but they could mark you down if you don't.

Depends on the mark allocation I guess and the wording - if it said 'STATE the maximum height' then it would be alright to just write the answer... i think. >.>

But you said that you're used to writing stuff like that already so why stop now?
Title: Re: Explaining our working out
Post by: dekoyl on October 04, 2009, 02:43:37 pm: Quote from: hyperblade01 on October 04, 2009, 02:42:28 pm
But you said that you're used to writing stuff like that already so why stop now?
Although I'm used to it, I can easily stop it and save some precious time. :)
Title: Re: Explaining our working out
Post by: hyperblade01 on October 04, 2009, 02:56:44 pm: I'm sure you won't lose that much time

Although stating something like " Stationary point at $\frac {dy}{dx}=0$ " can be annoying, writing what you're doing in vectors and mechanics also helps yourself - if you write 'resolve i components' or something it reminds you to only consider things left/right and not up/down

EDIT: I bet there's some correct answer that someone else on VN will have but I'm gonna say "Yes, because it's like signposting what you're doing"
Title: Re: Explaining our working out
Post by: GerrySly on October 04, 2009, 04:29:47 pm: I lose a shitload of time writing this stuff because I usually don't know how to do a question, do some rough working on it then realise where I am going and hack my way through it. If only you could bring in a notepad or something so I could write up workings out
Title: Re: Explaining our working out
Post by: Mao on October 04, 2009, 06:35:34 pm: Quote from: GerrySly on October 04, 2009, 04:29:47 pm
I lose a shitload of time writing this stuff because I usually don't know how to do a question, do some rough working on it then realise where I am going and hack my way through it. If only you could bring in a notepad or something so I could write up workings out

The formula sheet has a fair bit of space for exam 1

And for exam 2, be sure to bound ~10 pages of blank paper to your bound notes :) can get very handy when you just want to do some rough working out :)