The following WitCH comes from the VCE 2014 Specialist Exam 1:

The Examiners’ Report indicates that 81%, 48% and 45% of students received full marks for parts (a), (b) and (c), respectively.

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# WitCH 12: Duplicitous

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3 Replies to “WitCH 12: Duplicitous”

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The following WitCH comes from the VCE 2014 Specialist Exam 1:

The Examiners’ Report indicates that 81%, 48% and 45% of students received full marks for parts (a), (b) and (c), respectively.

In context, having part (b) is dumb. I’d get rid of part(b) and make part (c) (the new part (b)) worth 3 marks, 4 at an absolute stretch.

Thanks, John. Yes, a weird splitting of the problem.

I wonder if the point of having both parts (b) and (c) is to force students to adjust the limits of the definite integral once the substitution is made.

This is not much of a defence of the question, of course. Especially because this sort of thing is routinely assessed on the multiple choice component of exam 2.