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I don't think 22 marks is all silly mistakes. Maybe you've convinced yourself you "knew all the content". Also consider how well you studied. Studying 2hrs a day for 2 weeks doesn't mean you'll be ready, especially if you study in a really bad way. If the above is incorrect than this was a...

I think it would be good to do but not on a regular basis. Maybe only for the topics/parts of topics that spark discussion like mentioned above. But doing it for everything wouldn't work, everyone would slack off.

My ext teacher does that sometimes...worst thing ever. All it takes is some kids who didn't watch the video, and the rest have to wait for them to be taught. Another problem is that the video may not explain things clearly enough, and you can't ask questions you need to while the concept is...

I actually think Cambridge has good questions for basics. Their "Fundamental" questions are pretty easy and really good.

imo this is actually a really good way to start. My tutor started with this and it made a lot of sense to me, and brought more meaning to the otherwise boring-seeming topic.

A lot of high school teachers swear in and out of the class room. Whether it be minor or major words, most do it.

No

Both.

The fact that the HSC was easier for you is in no way an argument that it is easy for everyone. If a student is capable of 98, but aims and achieves 75, of course it's not hard. There are some students who may not be capable of hitting the mid-high 90s, yet want to do med or law at top uni's...

Probably shouldn't have your number on here.....

That's what annoys me about some uni people, they seem to downplay the stress of the HSC just because they made it to uni and it's harder there, when this time last year they were complaining about it just as much if not more. You really have no right to compare uni students to high school...

>Implying it wouldn't be without the national curriculum

http://umat.acer.edu.au/files/UMAT_info_book_13.pdf

In OP 'sroot' meant square root, so I assume it means the same thing in this case.

Yes you can definitely do the both of them, there are many people who do 4U English and 4U maths at the same time too. However everyone is different, so whether you will cope is up to you to find out. There is no harm in starting it and if you find it too difficult just drop it. And with those...

\begin{align*}I&=\int \frac{s-2}{\sqrt{s}}~ds\\&=\int \frac{s}{\sqrt{s}}-\frac{2}{\sqrt{s}}~ds\\&=\int ss^{-\frac{1}{2}}-2s^{-\frac{1}{2}}~ds\\&=\int s^{\frac{1}{2}}-2s^{-\frac{1}{2}}~ds\\&=\frac{2s\frac{3}{2}}{3}-4\sqrt{s}+C\\&=\frac{2}{3}\left ( s-6 \right )\sqrt{s}+C\\\end{align*}

It's not only ridiculous, it's impossible.

Tell him that.