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  1. Trebla

    Moderator application form

    I do not think it would be useful to speculate. All the information you need is in the original post.
  2. Trebla

    COVID-19 and school closures

    Schools to be returned to full time next week https://www.smh.com.au/politics/nsw/berejiklian-reveals-when-nsw-students-will-return-to-school-full-time-20200518-p54u3o.html
  3. Trebla

    HSC TIMETABLE JUST RELEASED!

    Link below https://educationstandards.nsw.edu.au/wps/portal/nesa/11-12/hsc/key-dates-exam-timetables/hsc-written-exam-timetable
  4. Trebla

    SLEEP OR STUDY

    More study does not necessarily guarantee better results. You need to find a study approach that gives you the best results with the least amount of time invested. It’s a matter of quality over quantity.
  5. Trebla

    Coronavirus/Covid-19 Discussion Thread

    Most decent places have already beefed up their hygiene rules (or are expected to when restrictions relax) around that to minimise the risk. Considering how many people still eat from outside restaurants everyday (via takeaway), the risk is quite low - especially if it’s hot food because any...
  6. Trebla

    Are internal marks affected by the school you go to?

    I'm not sure what you had in mind when it comes to "research" in the 2 unit HSC science subjects because I don't think it involves what you're describing lol (though also noting that Science Extension is a very research based subject). Semantics aside, practicality from an integrity point of...
  7. Trebla

    Binomials question

    A sneakier approach without as much algebra bashing: Let u_n = x^n + \frac{1}{x^n} We can show that u_{2n} = (u_n)^2 - 2 Hence u_8 = (u_4)^2 - 2\\= ((u_2)^2 - 2)^2 - 2\\= (((u_1)^2 - 2)^2 - 2)^2 - 2\\= ((u^2 - 2)^2 - 2)^2 - 2\\= (u^4 - 4u^2 + 2)^2 - 2\\= u^8 + 16u^4 + 4 + 2(-4u^6 + 2u^4 - 8u^2)...
  8. Trebla

    Are internal marks affected by the school you go to?

    I don't quite agree with that, because external examinations are a very limited way to assess a subject. Internal assessments exist to assess skills or topic coverage that an external examination is unlikely to capture. You cannot claim to be good at Chemistry if you are terrible at lab work or...
  9. Trebla

    ***The ATAR (Part 1): Unlock the Weird Inner-Workings of ATAR Calculations***

    The size of the "uplift" on the raw marks depends on both the target scaled mean and where the raw marks sit for that subject. It's better to think of scaling as a sort of "target seeking" algorithm. If for some reason the average of the Ext2 students' performance in Ext1 was lower than the...
  10. Trebla

    ***The ATAR (Part 1): Unlock the Weird Inner-Workings of ATAR Calculations***

    As a general recommendation, I would suggest people have a read of the scaling report from the UAC itself: https://www.uac.edu.au/assets/documents/scaling-reports/Scaling-Report-2018-NSW-HSC.pdf It might be complicated to understand the more complex mathematical details, but the general high...
  11. Trebla

    Are internal marks affected by the school you go to?

    There are examples which create the perception of being unfairly dragged down by a poor performing cohort, but look closely and it becomes clear that this perception is actually a mis-attribution of causation. One key principle of the moderating process is that the relative gaps between the...
  12. Trebla

    ***The ATAR (Part 1): Unlock the Weird Inner-Workings of ATAR Calculations***

    Just to clarify a technicality, scaling has nothing to do with how difficult a subject is. It is actually based on the strength of the subject's cohort in all their other subjects. In layman's terms the reason that say Physics typically scales better than Biology is because there are usually...
  13. Trebla

    Coronavirus/Covid-19 Discussion Thread

    That opinion is pretty common tbh. It also depends on what people mean by a "second wave". I would call a sustained exponential growth from community transmission with multiple untraceable sources a "second wave", but localised spikes here and there do not count. I also seem to be one of the...
  14. Trebla

    Mechanics question

    Whilst it gets the job done, I think it’s not as commonly taught (at least from the old syllabus) to avoid confusion in having to explain the difference between constants and variables in the limit of the integral. Even those who do teach it often use sloppy notation like \int_0^v v dv and...
  15. Trebla

    Are internal marks affected by the school you go to?

    The school you go to is NOT an input into your final internal marks. These are influenced by how you rank within the school cohort and the gaps between you and adjacently ranked students. This is a process known as moderation. The moderation process is intended to ensure that - all other...
  16. Trebla

    Coronavirus/Covid-19 Discussion Thread

    The main rationale for wanting it faster for Year 12s is because the education risk from home learning vs face-to-face learning is far greater than any other year. Given the current state of low community transmission in general, the difference in health risk across the age groups in schools is...
  17. Trebla

    Coronavirus/Covid-19 Discussion Thread

    The staged approach in NSW makes sense to me, though it probably should be transitioned faster for Year 12 students. It gives teachers and students time to get comfortable going back to face-to-face teaching. However, private schools can do their own thing. VIC on the other hand is doing all of...
  18. Trebla

    Coronavirus/Covid-19 Discussion Thread

    The US is about to hit 1 million confirmed cases. The number of confirmed deaths in the past month for the US is pretty shocking. It’s higher than an entire year’s worth of their motor vehicle fatalities and is about to exceed a year’s worth of their (upper bound estimate) influenza fatalities...
  19. Trebla

    Coronavirus/Covid-19 Discussion Thread

    I wouldn’t call that “fake news” tbh because what he said wasn’t exactly made up by the media (especially compared to some of the false things he asserts), but rather could be interpreted in a certain way. He was basically floating the idea in the context of a (somewhat cringeworthy) thought...
  20. Trebla

    Coronavirus/Covid-19 Discussion Thread

    Watching the movie Contagion on tv. Quite interesting seeing the comparisons...
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