Note-Taking Methods for Students: Cornell, Mind Maps and More

Many students treat notes as something to copy and keep. The best notes are something you use: they help you understand in class and recall later. Good note-taking can save hours at revision time because you are not rereading a whole textbook. Poor note-taking creates a pile of pages you never open.

This guide compares the main note-taking methods and shows how to adapt them to Nigerian classrooms, where you may face dictation, a crowded room, a shared textbook or a blackboard you can barely read.

What good notes do

Whatever method you pick, aim for notes that:

1. Capture key ideas, not every word.
2. Use your own words, which forces understanding.
3. Are organised, so you can find things quickly.
4. Include questions, to test yourself later.
5. Get reviewed within a day or two, otherwise most of the detail fades.

Method 1: The Cornell method

Cornell notes divide the page into three parts. They are widely taught because they build review into the format.

How to set up the page

• Draw a vertical line about a third of the way from the left edge: this is the cue column.
• Leave the right side for your main notes.
• Draw a horizontal line near the bottom and keep this space for a summary.

How to use it

Example (Biology, osmosis)

• Cue: "What is osmosis?" Notes: "Movement of water from a region of higher water potential to lower, through a partially permeable membrane."
• Cue: "Example in plants?" Notes: "Root hairs absorb water from soil."

Best for: most subjects, especially Biology, Government and Economics.

Method 2: Outline notes

Outlines use headings and sub-points with indentation.

1. Types of rock
   a. Igneous
      - formed from cooled magma
   b. Sedimentary
      - formed from compressed layers
   c. Metamorphic
      - changed by heat and pressure

Best for: teachers who speak in a clear order, and subjects with defined classifications such as Geography or Chemistry.

Weakness: It can feel rigid if the lesson jumps around. Fix it afterwards by rewriting.

Method 3: Mind maps

Write the main topic in the centre and draw branches for subtopics, with smaller branches for details. Use colours and small drawings if you like.

Best for: topics with many links, such as causes and effects in History, or the structure of a novel for Literature. Also useful as a one-page revision sheet.

Weakness: It can get messy for step-by-step processes. Use flow charts for those.

Method 4: Flow charts and diagrams

For processes (the nitrogen cycle, how a bill becomes law, the steps of respiration), draw boxes with arrows. A good diagram can replace a page of text. Label carefully, as many practical and theory papers reward neat labelled diagrams.

Method 5: Charting (tables)

Tables help you compare things. For example:

Check the facts against your textbook before copying a table into your notes. Tables are ideal for comparison topics in Biology, Government, Commerce and Economics.

Method 6: Flash cards

Strictly a revision tool, but you can make them as part of your note-taking. Write a question on one side and the answer on the other. Cards are cheap, work without light or data, and are ideal for definitions, formulas and vocabulary. Our guide to memorising faster shows how to use them with spaced recall.

A quick comparison

Notes in a Nigerian classroom: practical problems

The teacher dictates

Write what is dictated, but leave a margin (about a finger-width) on the left and a few spare lines under each topic. Afterwards, add your cue questions, one-line summaries and your own diagrams. If you do not add your thinking, you only own the teacher's words.

The board is far or unclear

Sit where you can see, and tell the teacher politely if you cannot. Write the key phrase, then ask a classmate to fill in gaps after class. Avoid copying blindly; if you do not understand a line, put a question mark beside it and ask.

The textbook is shared

Do not scribble in a shared book. Make your own condensed notes from it, chapter by chapter, with page numbers for reference.

There is little money for notebooks

Use one notebook per subject if possible, but if funds are tight, split a notebook into sections and label them. Write on both sides of loose pages and keep them in a folder. Neat, short notes use less paper.

Phone notes

If your school allows phones for study, a quick photo of a board diagram can be useful. But a photo is not a note until you have processed it. Rewrite it in your own words that evening.

Make notes work for revision

1. Review within 24 hours. Five minutes of review the same evening saves hours later.
2. Highlight sparingly. Mark only the key terms.
3. Convert notes into questions. Turn headings into questions and answer them with the page covered.
4. Create a one-page summary for each topic. These become your final revision sheets. See how to revise in the last 30 days.
5. Test yourself with real questions. ExamPadi has practice sets for major WAEC, NECO, JAMB and NABTEB subjects, which show you whether your notes cover what exams ask.

Subject-specific tips

Mistakes to avoid

• Copying notes word for word without thinking
• Writing too small or too messy to read later
• Never revisiting notes
• Keeping notes in disorder, with no dates or headings
• Using colour so heavily that nothing stands out

New to secondary school? Read study tips for SS1 to build good habits early.

Try this week

Pick one subject. Use the Cornell layout for all notes this week. At the end of each day, add cue questions and a short summary. On Sunday, cover the notes and answer the questions. If it helps, keep it. If not, try outlines or mind maps next week. Then practise a few questions to check how well your notes prepared you.