The most effective way to prepare for exams is to test yourself regularly: answer practice questions, do past or sample papers under exam conditions, and then study the mistakes they reveal. This is called retrieval practice, and it builds stronger memory than re-reading notes. Combine it with spaced reviews and a clear plan, and you will walk into the exam knowing what you can do.
Why testing yourself works better than re-reading
Re-reading notes feels comfortable. The pages look familiar, so you feel ready. But recognising information is not the same as being able to produce it on a blank exam paper.
The testing effect, also called retrieval practice, is one of the best-supported ideas in learning research. In a well-known study, Roediger & Karpicke (2006) found that students who practised recalling material remembered it better after a delay than students who spent the same time re-studying it. The act of pulling information out of memory makes it easier to find next time.
Practice tests also give you two extra benefits:
- They show exactly what you do not know, so you stop wasting time on what you already know.
- They make the real exam feel familiar, which can reduce nerves.
Know your exam first
Before you plan, find out what your exam actually looks like. Whether you are preparing for a class test, an end-of-term exam, a GCSE or IGCSE-style paper, or a national exam such as Tanzania’s FTNA (Form Two National Assessment) or CSEE (Certificate of Secondary Education Examination, Form Four) set by NECTA, check:
- Which topics and units are included
- The types of questions: multiple choice, short answer, structured questions, essays, practicals
- How long each paper is and how many marks each section carries
- Any instructions that often cost marks, such as “answer all questions in Section A”
Your teacher, the syllabus and official sample or past papers are the best sources for this. Do not rely on rumours about which topics “always come up”.
Build a revision plan backwards
Start from the exam date and work backwards:
- List all the topics for each subject.
- Rate each topic: green (confident), amber (partly), red (weak). Be honest; a quick practice quiz on each topic helps.
- Spread the topics over the weeks you have, giving more time to red and amber topics.
- Plan reviews of older topics, so early topics are not forgotten. A simple spaced schedule is explained in our guide to spaced repetition.
- Keep the last one or two weeks for full practice papers and mistake review.
| Time before the exam | Main focus |
|---|---|
| Several weeks or more | Learn and practise topic by topic, with short quizzes |
| 3–4 weeks | Mixed questions across topics; fill red and amber gaps |
| 1–2 weeks | Full timed practice papers; analyse every mistake |
| Last days | Light review of your question notebook and key formulas; rest well |
How to use practice questions well
Doing questions is good; doing them well is better. Follow these steps:
- Try without notes first. Even if you are unsure, attempt the question. A wrong attempt followed by feedback is still useful practice.
- Check immediately. Quick feedback helps you correct misunderstandings before they settle in.
- Read the explanation, not just the correct letter. Make sure you understand why.
- Mark questions to come back to. Anything you got wrong or guessed goes on your review list.
- Retry later. Come back to those questions after a few days without looking at the solution.
Let’s Study Book follows the textbook you use at school: units open one after another, each with topic lessons and tests, and every answer is checked on the spot with an explanation. Questions you get wrong come back to your list, so you meet them again. You can browse the available titles, including the Tanzania Form 1–4 secondary subjects, in the book library.
Tip: Mix topics in your practice sessions. Real exams do not tell you which chapter a question comes from, so practise choosing the right method yourself. This is called interleaving.
Doing full practice papers
In the final weeks, full papers under exam-like conditions are very valuable:
- Time yourself exactly as in the real exam.
- No notes, no phone, and a quiet place if possible.
- Mark honestly using the marking scheme if you have one, or ask a teacher.
- Analyse every lost mark. Was it a knowledge gap, a careless slip, a misread question or a time problem? Our guide on learning from mistakes explains a step-by-step method.
After each paper, write down three things to fix before the next one. Then fix them before you do another paper. Doing paper after paper without fixing anything mostly repeats the same mistakes.
Collect the questions that beat you
As you practise, you will meet questions you cannot solve. Do not let them disappear. Write or photograph them into a question notebook with your answer, the correct answer and a note on what went wrong.
In the last days before the exam, this notebook becomes your most valuable revision book: short, personal and full of exactly the things you need. In the app’s Question Notebook you can mark each one “Couldn’t solve”, “Will review” or “Solved” and filter by subject before each paper. Read how to keep a question notebook to set one up.
Exam week: look after yourself
Good preparation includes your body and mind:
- Sleep. Late-night cramming often costs more than it gains. Your brain needs sleep to store what you learned.
- Eat and drink regularly, and take short walks or stretch between study blocks.
- Light review only the night before: key formulas, definitions and your “Will review” questions.
- Prepare your materials (pens, calculator, ID, ruler) the evening before.
- In the exam, read each question carefully, underline key words, and move on from a stuck question to come back later.
If you feel very anxious, talk to a parent, teacher or school counsellor. Feeling some nerves is normal; you do not have to handle strong worry alone.
Your first step today
Pick one subject and one topic. Without opening your notes, write or answer five questions about it. Check your answers, note what you got wrong, and plan to retry those questions in three days. That small loop of testing, checking and retrying is the heart of effective exam preparation.
Quick answers
What is retrieval practice?
Retrieval practice means bringing information back from memory, for example by answering questions, writing what you remember or explaining a topic without notes. Research such as Roediger & Karpicke (2006) shows it improves long-term memory more than re-reading.
When should I start doing past papers?
Start with short topic questions as soon as you learn each unit, then move to full practice papers in the last weeks before the exam. Doing full papers only at the very end leaves too little time to fix the gaps they reveal.
How many practice tests should I do before an exam?
There is no magic number. Quality matters more than quantity: each practice test is useful only if you mark it honestly, analyse your mistakes and retry the questions you got wrong.
Is it better to re-read notes or do practice questions?
Practice questions are usually more effective, because they make you actively recall information and show you what you do not yet know. Use your notes mainly to check and fix answers.