We’ve finally found some time to take a look at VCAA’s 2019 NHT exams. They’re generally bad in the predictable ways, and they include some specific and seemingly now standard weirdness that we’ll try to address soon in a more systematic manner. WitCHwise, we were tempted by a number of questions, but we’ve decided to keep it to two or three.
Our first NHT WitCH is from the final question on Exam 2 (CAS) of Mathematical Methods:
As usual, the NHT “Report” indicates nothing of how students went, and little of what was expected. In regard to part f, the Report writes,
p(x) = q(x) = x, p'(x) = q'(x) = 1, k = 1/e
For part g, all that the Report provides is the answer, k = 1.
The VCAA also provides sample Mathematica solutions to schools trialling Methods CBE. For the questions above, these solutions are as follows:
Make of it what you will.