Everyone tells you to "do past questions". Almost no one tells you how. Done passively, they teach you almost nothing; done this way, they are the most efficient revision there is.
When you reread a note it feels familiar, and your brain mistakes that familiarity for knowledge. A question does not let you fool yourself: either you can produce the answer or you cannot. That moment of retrieval — pulling the answer out of memory — is what actually strengthens it, which is why testing yourself beats reviewing every time.
Past questions add a second advantage for JAMB, WAEC and NECO specifically: the exams reuse topics, question types and even phrasings across years. Practising them is not just revision, it is rehearsal for the real thing.
First, attempt a set under time, with nothing open — no notes, no phone. Guessing and getting it wrong is useful; it marks exactly where a gap is.
Second, mark it honestly. Third — the step most people skip — for every wrong answer, understand why the correct option is correct and why the one you chose is wrong. Fourth, note the topic and come back to it in a few days. One properly understood mistake is worth more than ten questions you already knew.
Write down every question you get wrong, grouped by topic — a page in a notebook is enough. Within a week a pattern appears: most of your lost marks come from a handful of topics, not spread evenly across everything.
That log is your real study plan. It tells you where an hour of revision buys the most marks, instead of you spending it on topics you already know because they feel comfortable.
Revisit each weak topic two or three times, days apart, rather than drilling it once until you are sick of it. The gap between sessions is what forces your brain to rebuild the memory, and rebuilt memories last.
In the final stretch, switch from single topics to full, timed papers. You are no longer learning content — you are training pace, stamina and the on-screen format. By exam day the paper should feel routine.
Yes. Untimed practice hides your biggest exam-day risk — running out of time. Practise at roughly exam pace so speed becomes automatic and you learn when to skip and return.
Both, in order. Use topic practice early to build and fix weak areas, then switch to full timed papers in the final weeks to train pace, stamina and the CBT format.
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