Maths Extension 2 Predictions/Thoughts (1 Viewer)

[tywebb]

there is a precedent for this.

in 2001 there was a wrong question - and they changed the question when they put it on their website!

 

[tywebb]

so in 2001 the question that got changed after the event was 7b.

when it went up on their website it looked like this

 

[coolcat6778]

they also haven't published the extension 2 exam despite advanced going up already

 

[tywebb]

there are 3 possibilities

1. they put up the original paper and get criticised for the mistake

2. they put it up but change the question and get criticised for changing it after the exam finished

3. they never put the paper up and get criticised for not putting it up.

 

[t234]

would it affect marking? would they cut marks ?

 

[coolcat6778]

there are 3 possibilities

1. they put up the original paper and get criticised for the mistake

2. they change the question and get criticised for changing it after the exam finished

3. they never put the paper up and get criticised for not putting it up.

they messed up with who they outsourced the exam creation to. I think they should all be fucking sued. this is worse than the vce leak, as the questions are suppose to be differentiating and unseen

 

[tywebb]

questions are suppose to be differentiating

more important than differentiating is valid and reliable.

considering the solution i put up before question 13a in the 2025 paper is neither valid nor reliable as an assessment item for extension 2 content

if they are aware of this issue it is even possible the question doesn't get marked at all - is disregarded and 3 marks deducted from total

 

[t234]

would they inform students of this? and if so when would that be??
of the mark deduction

more important than differentiating is valid and reliable.

considering the solution i put up before question 13a in the 2025 paper is neither valid nor reliable as an assessment item for extension 2 content

if they are aware of this issue it is even possible the question doesn't get marked at all - is disregarded and 3 marks deducted from total

 

[coolcat6778]

more important than differentiating is valid and reliable.

considering the solution i put up before question 13a in the 2025 paper is neither valid nor reliable as an assessment item for extension 2 content

if they are aware of this issue it is even possible the question doesn't get marked at all - is disregarded and 3 marks deducted from total

please cancel the entire paper

 

[tywebb]

i guess there is a 4th possibility - put the paper up and delete Q13a - and then get criticised for deleting it

 

[tywebb]

so in keeping with the purpose of this thread i make the following prediction:

Q13a will be redacted.

 

[Allan Mekisic]

Q13(a) was the only original question in the paper and they couldn’t get it right. LOL. They should get Chat GPT to set the paper.

 

[Allan Mekisic]

Just looking at the projectile question in 16(b). Shouldn’t sin0 be -3/5?

 

[BionicMango]

Just looking at the projectile question in 16(b). Shouldn’t sin0 be -3/5?

Technically theta is just an angle for a triangle, not necessarily the angle of projection (with a direction), so not necessarily. But you are meant to infer that the initial vertical velocity is -30. Kind of annoying though

 

[Allan Mekisic]

Sure. But the projectile is travelling in the 4th quadrant and sin is negative. Also when you have a mass suspended from the ceiling, the left sided horizontal component is - cos because it’s in the second quadrant.

 

[bigbird102]

so we can conclude this bro wrote the paper
View attachment 50085
u can tell can't u

so what do u think they will not mark the question altogether or try and cover up their mistake.

 

[lucas10champ]

so what do u think they will not mark the question altogether or try and cover up their mistake.

bro they definitely aint removing the question, i dont think theres a problem with it cause the exam gets checked many times and it would have been noticed a long time ago

 

[cheesynooby]

it doesn't seem like that big of a problem since the intended solution still works so maybe they'll just mark both solutions correct

 

[BionicMango]

Sure. But the projectile is travelling in the 4th quadrant and sin is negative. Also when you have a mass suspended from the ceiling, the left sided horizontal component is - cos because it’s in the second quadrant.

Yeah sin is negative, it’s just that I think they were assuming ‘theta’ is just a positive value and that it had to be inferred that this meant the y was negative. As in, the horizontal component is 50cos(-theta) and vertical is 50sin(-theta). I get what you mean though, they should have said -3/5.

 

[v.tex]

Literally now just gotta do textbook questions to do well in ext 2 math, unlike other years when the past papers actually counted