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  1. Trebla

    BoS meet up

    Created a poll for days available on the weekends
  2. Trebla

    BoS meet up

    Any preferences for type of activity? Thinking of doing it around early to mid-December. If there are less than 10 people coming we can probably keep it low key with like a lunch/dinner outing + some activity perhaps? If it’s more like 10+ people actually coming then maybe something like a BBQ...
  3. Trebla

    How does scaling work?

    Contrary to popular belief, scaling has nothing to do with difficulty of the subject. It is actually not possible to quantify “difficulty” objectively, so I honestly do not know why this myth keeps persisting. Scaling is completely data driven and is based on how many “smart” people are in...
  4. Trebla

    BoS meet up

    Bump
  5. Trebla

    Importance of grinding in high school vs University

    From an academic perspective, I personally found uni way more intense than high school. They go through a lot of content at a much faster pace than high school. Also, self-discipline is much more of a thing in uni because you're not really "forced" to do work like in high school. You are solely...
  6. Trebla

    made a couple equations to estimate aligned marks

    I believe alignment is piecewise linear. The raw band cut-offs are determined by judgement and all the marks in-between the cut-offs are determined by interpolation.
  7. Trebla

    BoS meet up

    Yeah in the Sydney area
  8. Trebla

    BoS meet up

    Hi all, With the HSC exams almost done, I want to see if there is any interest in having an in-person meet up event. For background, this was something that used to happen regularly many years ago on BoS, which helped build a strong sense of community and even some friendships amongst peers...
  9. Trebla

    Liberation

    Well done, it’s finally over!
  10. Trebla

    Someone please help with this question

    Technically circle geometry is not in the syllabus (it can also be proved by similar triangles)…
  11. Trebla

    HSC Maths Exam Gets an F for Failing Our Students

    It is not really valid to compare alignments between subjects in the first place given they are not about reflections of difficulty. They can only be comparable between years for the same subject. Alignment is more about the “standards” one expects of a band E4 student etc, which is somewhat...
  12. Trebla

    HSC Maths Exam Gets an F for Failing Our Students

    Speaking from experience writing the BoS trials, the irony is that the Ext2 paper is very spacious with plenty of room to fit in just 1 year of content into 100 marks, whereas the Ext1 paper has hardly any room to squeeze in 2 years of content into 70 marks.
  13. Trebla

    HSC Maths Exam Gets an F for Failing Our Students

    Interesting opinion piece from the head of Maths at SCEGGS, particularly ripping on the Ext1 HSC paper: https://www.smh.com.au/national/nsw/hsc-maths-exam-gets-an-f-for-failing-our-students-20221101-p5bul5.html Interested to know people’s thoughts…
  14. Trebla

    BoS trials Maths and Chemistry 2022

    Also, fantastic effort from the students who came consistently in the top 5 across all three subjects in the BoS trials this year! 🏆
  15. Trebla

    BoS trials Maths and Chemistry 2022

    … and here are the results for the 2022 Chemistry BoS Trials! Thank you for your patience and thanks to IAmWinston and edwxnsamuel for helping to mark the papers. As for the results, congrats to the top student who scored 71! :) Once again you are reminded that:
  16. Trebla

    BoS trials Maths and Chemistry 2022

    Hi all, Thank you for your patience. There is one minor loose end to be tied up with the marking, which we hope to resolve soon before releasing the results. However, the marking guidelines have now been written up and can be released to help with your studies. Please find this attached...
  17. Trebla

    y = ln f(x)

    This was in this year's Mathematics Advanced HSC. In my mind, if a composite function graph is examinable in Advanced (which seems to suggest they can even ask to sketch y = ln f(x) in Advanced) what's the point of having all these below in Extension 1? They are literally specific examples of...
  18. Trebla

    y = ln f(x)

    In general, if you are given two graphs of y = f(x) and y = g(x) then you are expected to know how to sketch y = f(g(x)). See this year’s HSC for Advanced.
  19. Trebla

    Do you need to be good at Math??

    Have you checked out the Notes and Resources section of this site?
  20. Trebla

    Mathematics Extension 1 HSC thoughts

    Three points of data (2020-2022) does not imply a trend though. I mean in the past we kept talking about how NESA kept writing boring generic HSC maths exams (with only a handful of interesting challenging content) and now here we are…
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