1. Start with a subject map
Instead of memorising unrelated facts in one long list, divide general knowledge into subject groups. Each group has its own way of organising information. This makes revision more systematic and helps you recognise what a question is really testing.
| Subject | Organise your notes around | Question to ask yourself |
|---|---|---|
| Science | Concepts, processes, units, experiments and applications | What causes this result, and how can it be tested? |
| Geography | Location, landforms, climate, rivers, resources and maps | Where is it, and what makes its location important? |
| World history | Chronology, people, events, causes and consequences | What changed, why did it change, and what followed? |
| ICT | Hardware, software, data, networks, security and digital services | What does this technology do, and how is it different from related terms? |
| Space and astronomy | Solar system, stars, galaxies, observation and space missions | What kind of object is it, and what does it orbit? |
| Economics | Production, prices, employment, trade, money and public finance | What is being measured, and what does the measure leave out? |
| Environment | Ecosystems, biodiversity, pollution, climate and conservation | What is the cause, what is the impact, and what can reduce it? |
| Sports | Rules, equipment, event formats, governing bodies and records | Is this a stable rule or a record that may change? |
2. Learn the distinctions that MCQs often test
Many confusing MCQs use terms that sound similar but mean different things. Write short comparison notes instead of learning each term in isolation.
Science: observation, hypothesis and theory
An observation is something noticed or measured. A hypothesis is a proposed explanation that can be tested. A scientific theory is a broad explanation supported by a substantial body of evidence. In science, “theory” does not simply mean a random guess.
Geography: weather and climate
Weather describes atmospheric conditions over a short period, such as today's rain or temperature. Climate describes long-term patterns in a region. A single cold day does not, by itself, disprove a long-term warming trend.
History: cause and consequence
A historical event can have several causes and more than one consequence. Keep the event's date, key participants, immediate trigger and longer-term background in separate note fields. This reduces the risk of confusing a trigger with the deeper causes.
ICT: hardware and software
Hardware refers to the physical components of a computer system. Software consists of programs and instructions. A useful revision exercise is to classify examples—such as a keyboard, operating system, browser and storage drive—and explain why each belongs in its category.
Astronomy: star, planet and moon
A star produces energy through processes in its interior. A planet orbits a star, while a natural moon orbits a planet or another larger body. Remember the relationship between objects, not just their names.
Economics: GDP and inflation
Gross domestic product (GDP) measures the value of final goods and services produced within an economy over a period. Inflation is a sustained rise in the general price level. GDP and inflation answer different questions; one should not be used as a substitute for the other.
Sports: rules and records
Rules and event formats are often more stable than records, rankings or current title-holders. When revising a record, note the sport, competition, category, date checked and source. Do not treat a changing statistic as a permanent fact.
3. Use a four-part note for each topic
- Definition: explain the main term in one or two sentences.
- Distinction: compare it with the closest related concept.
- Example: give one real example that shows the idea in practice.
- Question: write one MCQ or short recall prompt and explain the correct answer.
This format is useful for BCS preparation, university admission and cadet college entrance study because it trains you to recognise meaning, comparison and application—not only a memorised option letter.
4. Check facts responsibly
- For stable concepts, use reliable textbooks, reference works and educational sources.
- For Bangladesh-specific government facts, prefer relevant official government publications or institutional websites.
- For current statistics, rankings, office-holders, sports records and recent discoveries, check the publication date and confirm against a current authoritative source.
- If two sources disagree, check what each source measures, the date it refers to and the exact wording of the question.
- When an MCQ seems ambiguous, do not memorise it until the wording and answer have been reviewed.
5. Continue with practice
After studying a topic, attempt questions and read the explanation for every answer—including the ones you answered correctly by guessing. The available quiz library currently includes world history, geography and space-related practice; more subject-specific learning pages can be added as they are prepared and checked.
General Knowledge quiz pageFor a wider study routine, see the Study Guides and use the 7-Day Quiz Practice Tracker to plan review sessions.