Past paper questions: [paste].
What is the examiner actually
testing, what does a full-mark
answer contain that a half-mark
one doesn't, and what should I
practise?

Work Out What the Exam Rewards

The difference between a half-mark and a full-mark answer.

Prompt

Here are questions from past papers: [paste a few]. Tell me what the examiner is actually testing in each, what a full-mark answer contains that a half-mark answer doesn't, and what I should practise as a result.