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Parramatta High School 2023 Chemistry Trial

100 Trials from 2023 Mathematics Standard 2 (these 14 in a zip) Shore ; Kambala ; Epping Boys ; Sydney Grammar ; another 10 in post #80 Mathematics Advanced (these 31 in a zip) Manly ; Sydney Boys ; Sydney Girls ; Sydney Tech ; Baulkham Hills ; Hurlstone ; James Ruse ; Killara ; North Sydney...

Here is the Manly: https://community.boredofstudies.org/resources/manly-2023-advanced-trial.20263/

Manly 2023 Chemistry Trial

Manly 2023 Advanced trial

Alternative method for 14a with a major caveat In 1998 a review was undertaken in which it was recommended that rigour be maintained in any syllabus development. Stacey, K, Dowsey, J, McCrae, B & Stephens, M 1998, Review of Senior Secondary Mathematics Curriculum, Board of Studies NSW, Sydney...

Pretty easy. I put my solutions here: https://4unitmaths.com/cssa2023e1-tywebb.pdf Note in 14a for the extension 1 I used the regularised incomplete beta function, which although outside the syllabus, gets the answer much quicker. Furthermore use of the complementary error function instead of...

Also my solutions to the Ext. 1 CSSA 2023 are at https://4unitmaths.com/cssa2023e1-tywebb.pdf Note in 14a for the extension 1 I used the regularised incomplete beta function, which although outside the syllabus, gets the answer much quicker. Furthermore use of the complementary error function...

And now there is this one for Ext 1 from 2023: https://community.boredofstudies.org/resources/north-sydney-boys-high-school-2023-trial.20261/

North Sydney Boys High School 2023 Ext 1 trial

In the Independent Physics 2023 trial there was a question 22c about change in gravitational potential energy and the marking guidelies put the solution 0.5x600000x(9.8 - 8.22)x288=1.37x108J but this was amended to 0.5x600000x(9.8 + 8.22)x288=1.56x109J It wouldn't be a problem if all the...

There is also a 2023 Ext 2 paper here too: https://community.boredofstudies.org/resources/manly-2023-ext-2-trial.20259/ I don’t think thsc has any 2023 ones yet

I am watching Star Trek Lower Decks S04E02 now. Are you going to watch Star Trek Lower Decks S04 which started today?

I also put up my solutions to the Ext. 2 CSSA 2023 at https://4unitmaths.com/cssa2023e2-tywebb.pdf I used an out-of syllabus method for question 12aii choosing 3 planes out of 6 to find the point of intersection of the 2 lines using a matrix equation. This turned it into a question about the...

If the markers are made aware of this before they mark it then it won't matter. But are they? If not then dodgy solutions = dodgy marks. Even worse - if some are made aware of it and others aren't, not only are the marks dodgy, but unfair as well, eg., some students getting marks and other...

CSSA's answer to their 2023 Adv paper Q28b is wrong. They should have checked ln(16/9)-1 is negative and so the distance is ln(9/16)+1 (or written as ln(9/16) - -1 as question said to write it as ln(a/b)-c)

We can start adding the 2023 trial ones to this now. 208 now with the Manly 2023 Q2, 11a, 11b, 13a, 13d, 15c, 16ci from https://community.boredofstudies.org/resources/manly-2023-ext-2-trial.20259/

How to make it go to 200? Most commercial papers don't allow their papers to be shared for copyright reasons. However the Western Mathematics are an exception. They have their papers up at http://www.westmaths.com.au/home/ from 2018-2022 (the 2023 not there yet) Whilst some students have...

Manly 2023 Ext 2 trial

It is Cambridge y12 Ex17A Q20a