It’s the night before, maybe even the morning of, and the syllabus is still sitting there mostly untouched. Panic is setting in, and the instinct is to open every note you own and try to read all of it at once. That instinct, understandable as it is, usually makes things worse.
You can’t turn zero preparation into full mastery in a few hours. What you can do is turn zero into something workable, a real, defensible attempt instead of a blank paper. Knowing how to prepare for an exam last minute means picking your battles fast and skipping the guilt spiral that eats up the little time you have left.
Here’s what to actually do with the hours you’ve got left, whether that’s one night or a single afternoon.
Stop and Figure Out What’s Actually Being Tested
The first ten minutes matter more than people think. Before you touch a single note, get clear on the exam format. Is it objective, theory, or both? How many questions, and how much time per question? A theory exam rewards depth on fewer topics. An objective exam rewards breadth across many, even shallow breadth.
If you have access to past questions for this exam, even two or three years’ worth, that’s your best five minutes spent. Look at which topics come up again and again, since most teachers and examiners repeat emphasis year to year even when the exact questions change. That repetition is your map for where to spend the next few hours.
Skip this step and you’ll end up reading whatever page you happen to open to first, which is close to random and wastes the very thing you don’t have, time.
Pick Three to Five Topics and Commit to Them
Trying to touch every topic in the syllabus with a few hours left almost guarantees you end up knowing a little about everything and nothing well enough to actually answer a question on it. Shallow coverage of everything rarely beats solid coverage of a few things.
Rank your topics by two things, how often they show up in past questions and how much of the mark allocation they typically carry. Pick the three to five that score highest on both, and put almost everything you have into those. If the exam is theory based, aim to know enough about each chosen topic to write a full, structured answer. If it’s objective, aim to recognise the core facts and formulas well enough to answer quickly.
This is triage, not laziness. A student who nails four topics out of ten scores far better than one who half remembers all ten.
Use Summaries and Past Questions, Not the Full Textbook
Reading a chapter from the textbook top to bottom takes far longer than you have, and a lot of what’s in there won’t even be tested. Go for the compressed version instead.
If a summarised note, a friend’s condensed version, or a revision guide exists for your chosen topics, use that over the original textbook every time. Then move straight into solving past questions on those same topics. This does two things at once, it teaches you the content and shows you exactly how it gets asked, which matters more right now than reading for full understanding.
For subjects where the exam is mostly multiple choice, this approach lines up well with the elimination and pattern spotting techniques covered in how to study for multiple choice exams, which can help you guess smarter on anything you genuinely don’t know on the day.
Test Yourself Instead of Just Reading
With limited time, rereading is the least efficient thing you can do. It feels productive because the words look familiar, but familiarity isn’t the same as being able to answer a question cold.
After going through a topic once, close your notes and try to write or say everything you remember, then check what you missed. This is slower per topic than plain reading, but it locks in far more per minute, which matters enormously when minutes are all you have. The recall based approach in how to study effectively for exams covers this in more depth, and it applies just as much to a six hour cram session as it does to a three month plan.
Protect a Few Hours of Sleep, Even If It Feels Wrong
Pulling an all nighter feels like the responsible choice when you’re behind, but it usually backfires. Memory consolidation, the process that actually locks in what you studied, happens during sleep, and skipping it can undo a chunk of what you just spent hours learning.
If your exam is tomorrow morning, stop studying with enough time to get at least three to four hours of sleep, even if that feels like giving something up. A tired brain the next morning will struggle to recall even the topics you did prepare well, which defeats the entire point of the cramming you just did.
If you genuinely cannot fit in any sleep, at minimum give yourself a short break before the exam, even twenty minutes of lying down with your eyes closed, rather than studying right up to the moment you walk into the hall.
Manage the Exam Itself Strategically
Once you’re in the hall, how you use your remaining knowledge matters as much as how much of it you have. Panicking over a question you don’t know can eat time you needed for questions you do know.
Scan the whole paper first if you’re allowed to, and answer the questions you’re most confident about before tackling anything unfamiliar. For theory questions, write down whatever partial knowledge you have, since examiners typically award marks for correct points even in an incomplete answer, rather than an all or nothing grade. For objective questions, use elimination on anything you’re unsure of instead of leaving it blank, since a blank answer scores exactly the same as a wrong one.
If this cramming situation is becoming a pattern rather than a one off, it’s worth looking at what’s driving it. The habits in how to stop procrastinating on assignments and how to create a study timetable that actually works exist specifically so you’re not repeating this same panic before every exam.
Learn From This One, Even If You Can’t Fix It Right Now
Once the exam is over, resist the urge to just move on without a backward glance. A cramming session under pressure is actually useful data about what went wrong earlier, and ignoring that means the same panic shows up again next time.
Be honest about whether this was a one off, a genuinely unexpected clash of deadlines, or part of a repeating pattern. If it’s the latter, that’s worth fixing properly before your next major exam, whether that’s WAEC, JAMB, or a university test. The structured plan in how to prepare for WAEC shows what preparation looks like when you’re not starting from zero the night before.
Conclusion
Preparing for an exam last minute isn’t about cramming harder, it’s about cramming smarter. Figure out the format, pick a handful of high value topics, use summaries and past questions over the full textbook, test yourself instead of rereading, and protect at least a few hours of sleep before you walk in.
Start right now with the first step, pull up whatever past questions you can find and mark the topics that keep repeating. That alone will tell you exactly where the next few hours should go.