Learning how to study and remember what you read can make exam preparation more productive. Many students spend several hours reading textbooks, notes and study materials, yet struggle to remember the information when they sit for an examination. The problem is not always a lack of effort. In many cases, the student is using a study method that creates familiarity with the material without developing strong recall.
Reading a chapter several times may make it look familiar, but familiarity does not always mean you can explain or apply what you have learned. Effective studying requires you to understand information, retrieve it from memory, practise using it and review it at appropriate intervals. This is particularly important when preparing for examinations with large syllabuses.
This guide explains practical ways to study and remember what you read for exams. You will learn how to use active recall, spaced revision, practice questions, short notes, self-explanation and effective time management to make your study sessions more productive.
Why Do Students Forget What They Study?
Forgetting information is a normal part of learning. When you read something once and do not return to it, remembering the details later can become difficult. This does not necessarily mean that you have a poor memory or that you are incapable of understanding the subject.
One common problem is passive studying. A student may read the same chapter repeatedly and feel confident because the information looks familiar. However, when the book is closed, the student may struggle to explain the topic or answer a question about it.
This is why effective exam preparation should involve more than reading. You need opportunities to retrieve information without looking at your notes, apply what you have learned and revisit difficult topics over time.
The goal is not to spend the highest number of hours studying. The goal is to make your available study time more effective.
How to Study and Remember What You Read
There is no single study technique that works perfectly for every student or every subject. However, certain methods can make it easier to understand information and retrieve it when you need it.
The most useful approach is to combine several techniques. For example, you can read a topic to understand it, close your book and recall the important points, answer practice questions and then return to the areas you got wrong.
This turns studying from a passive activity into an active learning process.
1. Understand Before You Try to Memorize
Do not begin every study session by trying to memorize sentences word for word. Start by understanding what the topic means and how its different ideas are connected.
If you are studying Biology, for example, try to understand a process before memorizing its definition. If you are studying Mathematics, understand why a formula works and when to use it rather than simply copying it repeatedly. Understanding gives you a foundation that makes later recall easier.
As you study, ask yourself questions such as:
- What is this topic about?
- What are the main ideas?
- How does this process work?
- Why is this information important?
- Can I explain it in simple language?
- What examples can I give?
If you can explain a topic in your own words, you are more likely to have understood it than if you can only recognize the words in your textbook.
2. Use Active Recall
Active recall is one of the most useful techniques for exam preparation. Instead of continuously looking at your notes, close the book and try to remember what you have just studied.
For example, suppose you have just studied photosynthesis. Close your textbook and ask yourself, “What is photosynthesis, and how does it occur?” Then explain the answer without looking at your notes.
You can also take a blank sheet of paper and write down everything you remember about the topic. When you finish, compare your response with your textbook or notes and identify the information you missed.
This method is useful because it shows you what you actually remember. It also reveals gaps in your knowledge that may remain hidden when you simply reread the material.
Active recall can be used for many subjects, including English, Biology, Chemistry, Mathematics, Government, Economics and other subjects commonly tested in JAMB, WAEC, NECO, NABTEB and Post-UTME examinations.
3. Practise Spaced Revision
Do not study an important topic once and leave it untouched until examination day. Instead, review it several times over a period of days or weeks.
This approach is commonly known as spaced revision or spaced practice. Rather than putting all your effort into one long study session, you return to the information at different intervals.
For example, you could study a topic today, review it tomorrow, test yourself again several days later and revisit it the following week. The exact schedule can depend on how difficult the topic is and how much time you have before the examination.
Spaced revision is particularly useful when preparing for a large syllabus because it reduces the need to relearn everything shortly before the examination.
4. Make Short and Useful Notes
Good notes should help you understand and remember information. They should not simply reproduce every sentence in your textbook.
After studying a topic, reduce it to its most important ideas. For example, if you are studying the causes of soil erosion, your notes might include heavy rainfall, deforestation, overgrazing, poor farming practices and strong winds.
You can then explain each point in your own words. This makes your notes easier to review and forces you to think about the information instead of simply copying it.
Avoid spending excessive time decorating your notes or rewriting entire textbook chapters. The purpose of notes is to support learning and revision, not to create another textbook.
5. Turn Your Notes Into Questions
Another effective technique is to turn important points in your notes into questions. Instead of writing only a definition, create a question that requires you to remember the definition.
For example, instead of writing:
Photosynthesis is the process by which green plants manufacture food using light energy.
Write:
What is photosynthesis?
You can create similar questions such as:
- What are the causes of soil erosion?
- What are the functions of the human heart?
- What are the characteristics of a good essay?
- What is the difference between two related concepts?
- Why does a particular process occur?
- What examples can be given?
Later, cover your answers and attempt the questions from memory. This transforms your notes into a personal revision tool.
6. Use Practice Questions
Practice questions are essential when preparing for an examination because they show whether you can actually use the information you have studied.
After learning a topic, answer relevant questions without immediately checking the answers. Give yourself enough time to think through each question before deciding on your response.
When you get a question wrong, do not simply memorize the correct answer. Find out why your answer was wrong and what part of the topic you misunderstood.
This is especially important when using past questions for JAMB, WAEC, NECO, NABTEB or Post-UTME preparation. The value of practice questions comes not only from seeing questions but also from learning from your mistakes.
7. Explain What You Have Learned
One of the simplest ways to test your understanding is to explain a topic as if you were teaching another student. You do not need to use complicated words. Focus on explaining the main idea clearly and logically.
For example, after studying a difficult Chemistry concept, try explaining it aloud without looking at your textbook. If you become confused or cannot remember an important part, return to your notes and review that section.
You can do this alone or with a study partner. The important thing is to retrieve the information and organize it in your own words.
If you cannot explain something simply, it may be a sign that you need to understand it better before trying to memorize it.
8. Break Large Topics Into Smaller Parts
A large syllabus can become overwhelming when you look at it as one huge task. Instead of trying to study an entire subject at once, divide it into smaller topics that you can complete one at a time.
For example, a Chemistry revision session could be divided into definitions, important concepts, formulas, worked examples and practice questions. You can then focus on one section before moving to the next.
Breaking topics into smaller parts also makes it easier to track your progress. Rather than thinking, “I still have so much to study,” you can identify exactly what you have completed and what remains.
9. Mix Different Study Activities
Avoid spending every study session doing exactly the same thing. Reading, recalling, practising questions and reviewing mistakes all serve different purposes, so combining them can make your preparation more effective.
For example, you could spend 30 minutes learning a new topic, 10 minutes recalling the main points without your notes, 20 minutes answering questions and another 10 minutes reviewing your mistakes.
The exact timing does not have to follow this example. The important thing is to include active learning instead of spending the entire session simply reading.
10. Remove Distractions
Your study environment can affect how effectively you use your time. Constant notifications, social media, television and unrelated conversations can make it difficult to maintain concentration.
If you use your phone for studying, disable unnecessary notifications and keep unrelated apps closed during your study period. If possible, choose a quiet location where you can focus without frequent interruptions.
You do not need a perfect study environment. You simply need to reduce the distractions that repeatedly pull your attention away from your work.
11. Create a Realistic Study Timetable
A study timetable can help you organize several subjects and prevent you from leaving difficult topics until the last minute. However, your timetable should be realistic rather than based on an ideal schedule that you cannot maintain.
Consider your available study hours, the number of subjects you need to cover, your examination date and the topics that require the most attention.
Give additional time to difficult subjects while continuing to revise areas you already understand. Also include practice questions, revision periods and reasonable breaks.
A flexible timetable is usually more useful than a strict schedule that becomes impossible to follow after missing one study session.
12. Review Your Mistakes
Your mistakes can show you exactly where your preparation needs improvement. Keep a record of questions or topics that you repeatedly get wrong and review them regularly.
For each mistake, try to identify what caused it. You may have misunderstood the topic, forgotten a rule, rushed through the question or failed to notice an important detail.
Once you understand the reason for the mistake, practise a few similar questions. This helps turn an error into a learning opportunity instead of simply adding another wrong answer to your practice score.
A Simple Revision Method for Exams
If you are unsure how to structure your study sessions, use a simple five-step process.
Step 1: Learn
Study a manageable section of the topic and make sure you understand the main ideas.
Step 2: Close Your Notes
Put your textbook and notes aside and try to recall what you have just learned.
Step 3: Explain or Write
Explain the topic aloud or write down the main points without looking at your materials.
Step 4: Practise
Answer questions related to the topic and try to solve them without checking the answers first.
Step 5: Review
Check your answers, identify your mistakes and return to the areas you still find difficult.
You can repeat this process across different subjects. As the examination approaches, increase the amount of practice and timed revision you complete.
Common Study Mistakes to Avoid
Reading Without Testing Yourself
Reading is important, but it should not be your only study activity. Regularly close your notes and test what you can remember.
Studying Everything the Night Before
Trying to learn a large syllabus in one night can leave you exhausted and overwhelmed. Start your revision early enough to give yourself multiple opportunities to review important topics.
Copying Entire Textbooks Into Your Notes
Long notes are not necessarily better notes. Focus on important information and explain it in a way that makes sense to you.
Ignoring Difficult Topics
It is tempting to keep revising subjects you already understand because they feel easier. However, difficult topics often deserve more deliberate practice.
Checking Answers Too Quickly
If you look at the answer immediately after reading a question, you may not give yourself enough time to retrieve the information. Attempt the question first, then check your response.
Studying Without Breaks
Long periods of continuous study can make it difficult to maintain concentration. Plan reasonable breaks so that you can return to your work with better focus.
Read More: TOEFL 2026 New Format: Sections, 1-6 Scores and How to Prepare
Frequently Asked Questions
How can I study and remember what I read for exams?
Use active recall, spaced revision, practice questions and self-explanation. Instead of only rereading your notes, regularly close your books and try to retrieve the information from memory.
Why do I forget what I read after studying?
You may forget information because you have not reviewed or actively retrieved it enough. Reading something once can create familiarity, but repeated recall and revision give you more opportunities to strengthen your understanding.
How many hours should I study every day?
There is no fixed number of hours that works for every student. The quality of your study matters, so create a realistic schedule based on your available time, subjects, examination date and current level of preparation.
Is reading the same thing repeatedly a good study method?
Rereading can help you understand difficult material, but it should not be your only technique. Combine reading with active recall, practice questions and spaced revision.
How can I remember what I study for a long time?
Review important information at spaced intervals and regularly test yourself without looking at your notes. Understanding concepts and connecting new information to what you already know can also support better retention.
How can I study many subjects without getting confused?
Create a timetable that divides your available study time among the subjects. Study manageable sections instead of trying to complete several large topics at once, and give extra attention to subjects or areas where you are struggling.
Are past questions important for exam preparation?
Yes. Past questions can help you become familiar with question patterns and practise applying what you have learned. However, you should understand the underlying topics rather than simply memorizing previous answers.
What should I do when I cannot remember a topic?
First, identify exactly what you cannot remember. Return to that section, review the concept, explain it in your own words and then test yourself again without looking at the answer.
How can I avoid distractions while studying?
Choose a suitable study environment and remove unnecessary distractions. Silence notifications, keep social media away from your study sessions and use your phone only when it is genuinely needed for your preparation.
What is the best way to revise before an exam?
Start by reviewing the topics you have already studied, then use active recall and practice questions to identify weaknesses. As the examination approaches, focus more on difficult areas, past questions and timed practice rather than simply rereading entire textbooks.
Conclusion
Learning how to study and remember what you read is not about spending every available hour with your textbooks. Effective exam preparation comes from using your study time deliberately and giving yourself repeated opportunities to understand, recall and apply what you have learned.
Start with understanding before attempting to memorize. Use active recall to test yourself, spaced revision to revisit important topics, short notes to organize information and practice questions to check whether you can apply your knowledge. When you make mistakes, study them carefully instead of simply moving on.
Whether you are preparing for JAMB, WAEC, NECO, NABTEB, Post-UTME, IELTS, TOEFL or another examination, these study techniques can help you build a more effective revision routine. The key is to stay consistent, focus on active learning and adjust your approach when a particular method is not helping you make progress.
