How to actually prepare for prelims

"Revise more" is the advice everyone gets and almost nobody finds useful, because revision (going back over material already taught) and exam preparation (learning how to perform under exam conditions) are genuinely different skills, and prelims exist specifically to practise the second one.

The single highest-value prelim prep activity is sitting a full past paper under real time pressure, then marking it against the actual Qualifications Scotland marking instructions rather than just checking if the final answer was right. Most lost marks aren't knowledge gaps; they're marks lost to wording, missing working, or running out of time on a section that should have taken less time.

Treat a bad prelim result as diagnostic information, not a verdict. A prelim months before the real exam is precisely the low-stakes place to discover a weak topic or a pacing problem; that's what it's for.

If a subject's prelim went badly and it's not obvious why, a tutor looking at the actual marked paper with your learner is often faster than more general revision; the specific pattern of lost marks usually points straight at the fix.