How to Take Cornell Notes: A Simple Before, During, and After-Class Routine
Set up a notes area, a cue column, and a summary space. Then use a simple routine to capture key ideas, turn them into questions, and review them later.
What Cornell notes are—and how the three parts work
The page layout separates capturing information from creating prompts that help you find and revisit it.
Cornell notes use three areas: a large notes section, a narrower cue column, and a summary space along the bottom. You can draw the layout on paper or recreate it in a digital document or note-taking app.
Use the notes section for important ideas and supporting details. The cue column holds questions, key terms, or short prompts that point back to those ideas. The summary space gives you room to state the page’s main point in your own words.
Stanford’s Center for Teaching and Learning describes this basic arrangement as notes on the right, key concepts in the left margin, and a brief summary at the bottom. It is one practical format to try—not a guarantee of better grades or a universal fit.
- Notes section: main ideas, definitions, examples, and relevant details.
- Cue column: questions or keywords that help you locate and explain the notes.
- Summary: a short account of what the page is mainly saying.
Set up a Cornell notes page
A recognizable layout makes notes easier to scan, without requiring special stationery or software.
At the top of a blank page, write the topic and, if useful, the date and the class, chapter, or source. Draw a vertical line to make a wide notes section and a narrower cue column. Leave a strip at the bottom for a summary.
There is no required measurement. As a starting point, give roughly two-thirds of the writing space to notes and the rest to cues, then adjust to fit your handwriting, screen, or subject. Leave enough room for the kind of cues you plan to write, and reserve a few lines below for the summary.
On a tablet or computer, use a table or two-column layout and add a separate text area at the bottom. If a diagram or equation needs more space, it is fine to let it cross the column boundary or use a separate page. The structure should support understanding, not constrain it.
| Page area | What to write | Example |
|---|---|---|
| Top heading | Topic, date, and class or source | Cell biology — Tuesday lecture |
| Main notes section | Key ideas, concise explanations, examples, and useful details | A cell membrane controls what enters and leaves the cell. |
| Cue column | Questions, key terms, or short prompts | What does the membrane regulate? |
| Bottom summary | A few sentences in your own words | The membrane separates the cell from its surroundings and regulates exchange. |
During class or reading: capture the useful parts
Use the first pass to follow the material and record enough context to make sense of it later.
Write in the main notes section as you listen or read. Look for headings, central claims, relationships, examples, and details that support or clarify an idea. Short phrases are fine if they will still make sense to you later. Use arrows, indentation, or a simple diagram when it shows a connection more clearly than prose.
Try not to transcribe every sentence. Princeton’s McGraw Center advises focusing on main ideas and useful supporting details instead of writing down everything. It also suggests leaving gaps when you need to come back to a detail. This can help you keep following the lecture or reading rather than getting stuck reconstructing a missed point.
If you miss something, leave a blank space or mark it with a small note such as “check.” Add a slide number, page number, or heading when it will help you find the relevant material again. Mark unfamiliar terms or unclear claims so you can verify them later rather than guessing.
- Capture a main idea and the details that make it understandable.
- Include examples when they clarify an abstract concept.
- Mark unclear terms, missing points, and questions for follow-up.
- Make topic changes visible so separate ideas do not run together.
After class or reading: add cues and a summary
A short second pass turns rough notes into a page you can navigate and question.
When you have a suitable pause, revisit the page while the context is familiar. Fill in important gaps using your class materials or another reliable source. If you cannot verify a detail, leave it marked as a question rather than inventing an answer.
Next, add cues in the left column. A useful cue should prompt you to retrieve or explain an idea, not simply repeat a long sentence from the notes. Turn a definition into “What does this term mean?” Turn a process into “What happens first, and why?” A short heading can also work if it clearly points to the notes beside it.
Finish with a brief summary at the bottom. State the page’s central point and how its main ideas relate. If the notes are a list of disconnected facts, writing the summary may help you notice that you need to add context or clarify a connection.
Cornell University’s Learning Strategies Center describes a sequence that includes recording notes, adding questions or cues, reciting answers from prompts, reflecting, and reviewing. These are steps you can adapt to your own material and routine.
- Make cues specific enough that you know what kind of answer to give.
- Use “why,” “how,” or “compare” questions when the material involves relationships or reasoning.
- Keep the summary focused on the page’s main point, not every detail.
Review by answering the cues
The cue column gives you a straightforward way to check what you can explain without looking at the notes.
Cover the main notes section and read one cue at a time. Answer in your own words, aloud or in writing, before uncovering the page. Then compare your answer with the notes: Did you include the main idea? Did you mix up two concepts? Is the cue too vague to help?
Treat a missed answer as a signal about what to revisit, not as proof that the note-taking method has failed. Mark the difficult prompt and return to the relevant part of the class material or reading. If you answer easily, you may be ready to move on or check that your explanation includes the right details.
For example, a page about cell membranes might include the cue “What crosses easily, and what needs help?” The notes might say that some small molecules pass through more readily, while other substances rely on transport proteins. Covering the notes lets you try explaining the distinction; uncovering them gives you a way to check and refine your answer. Cornell’s guidance includes reciting from cues as part of using the page.
A worked example: notes on the water cycle
A compact example shows how the notes, cues, and summary can work together.
Imagine a short lesson explaining how water moves through the environment. In the notes section, you might write that energy from the Sun drives evaporation, water vapor cools and condenses into droplets, and precipitation returns water to Earth’s surface. You could add an example of water collecting in a lake or running over land.
In the cue column, you might ask “What drives evaporation?”, “How does condensation happen?”, and “How does water return to the surface?” A short summary could read: “Energy from the Sun moves water into the atmosphere through evaporation. Cooling vapor condenses, and precipitation returns water to the surface, where it can collect or flow.”
For a longer lesson, you might add a labeled diagram, compare runoff with infiltration, or mark a question about a point you did not understand. The aim is not to squeeze an entire lesson into a neat template; it is to preserve enough context for the cues to make sense later.
Adapt Cornell notes to the material
Keep the elements that help you understand and review; change the layout when it gets in the way.
Cornell notes can be adapted for lectures, textbook sections, and training sessions where you can identify main ideas and return to them. The format may be less convenient when you need to preserve a long worked solution, a complex visual, or a sequence exactly as presented. In those cases, use the notes section for the diagram or steps, then add cues about the reasoning or decisions involved.
You can adjust the layout too. A digital page may make it easier to search terms or link to slides; paper may feel quicker for sketching. Widen the cue column if prompts do not fit. If you spend more time maintaining the template than understanding the material, simplify it or try another format.
Choose based on the task: What will you need to explain, compare, remember, or find again? Princeton’s advice to focus on main ideas and useful supporting details is a helpful starting point, but the exact format should fit the content and your workflow.
- For a process, number the steps and add cues about what each step accomplishes.
- For a comparison, use a small table and add prompts about the differences that matter.
- For a diagram, label the visual and add a cue about what it shows or why a part matters.
- For a reading, note the main claim, its supporting evidence, and questions to check.
Start with one page and refine it
A small trial helps you see whether the format suits your next class, chapter, or learning task.
For your next lecture or reading, make one page with the three areas. During the material, write concise notes and mark gaps. Afterward, check important gaps, add answerable cues, and write a short summary. When you return to the page, cover the notes and try answering the cues before checking them.
Notice which prompts were hard to answer and which parts of the page were difficult to follow. Make cues more specific, add missing context, or change the layout. A page that is clear and usable matters more than one that follows a perfect template.
- Before class or reading, label the page and make space for notes, cues, and a summary.
- During the material, record main ideas and useful details; mark anything to verify.
- Afterward, fill important gaps, add cues, and summarize the page in your own words.
- To review, cover the notes, answer the cues, uncover the page, and mark any gaps.
- Adjust the format if the subject or your workflow calls for more space, diagrams, or a different structure.
Frequently asked questions
How much space should I leave for the Cornell notes cue column?
There is no required measurement. Make it wide enough for short questions or keywords while keeping most of the page for notes. Adjust it to suit your handwriting, device, and subject.
Should I write full sentences in Cornell notes?
Not necessarily. Concise phrases, headings, arrows, and diagrams can work if they preserve the meaning. Include enough context to understand the notes later.
When should I add questions to Cornell notes?
You can note questions during class or reading, especially when something is unclear. Afterward, review the page and turn important points into prompts you can answer from the notes.
Are Cornell notes suitable for every subject?
No single format suits every task. Cornell notes can be adapted for many lectures and readings, but a visual, sequence, or worked example may need a different structure. Change the page or try another format when that makes the material clearer.
Sources & further reading
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