Mind mapping: the method for organizing a course visually (with examples)
Aug 4, 2026
Your history lecture is 40 pages long. You read it. You reread it. You understand each paragraph, but you don't see the overall plan.
It's like looking at a forest while pressing your face against a tree.
Mind mapping (or "mental mapping") was invented by Tony Buzan in the 1960s to solve exactly this problem: seeing a lecture at a single glance, like an image.
Here is how to use it.
The principle: your brain thinks in images, not lists
A study from the University of Waterloo showed that your brain retains visual information 6 times better than textual information.
A mind map leverages this strength: - A central idea in the middle (the chapter title) - Branches that radiate outward like a star towards sub-ideas - Sub-branches for details - Colors, symbols, sometimes drawings
Result: you look at your mind map, you see the whole chapter at once.
When to use mind mapping (and when not to)
Use it to:
Structure a lecture (see the main parts, the connections)
Review globally before an exam
Prepare an outline for an essay or oral presentation
Brainstorm on a complex topic
Summarize a book
Do NOT use it for:
Memorizing vocabulary by heart → flashcards are better
Retaining precise definitions → study sheets are better
Learning math formulas → practice problems are better
Mind mapping is a structuring tool, not a pure memorization tool.
The 5 steps to make an effective mind map
Step 1: the sheet in landscape (horizontal)
Take an A3 sheet (or A4 minimum). Orient it in landscape. Your brain needs space to breathe.
If you use software, choose a wide canvas.
Step 2: the central idea
In the middle of the sheet, you write the title of the chapter.
Tip: surround it with a frame, add a color, draw a symbol. Your brain must identify this central idea as the source.
Example: in the middle, you write "The French Revolution" in a red rectangle, with a small drawing of a Phrygian cap.
Step 3: the main branches (the major parts)
From the center, you draw 3 to 6 branches outward. Each branch = a major part of the chapter.
A different color for each branch.
Example for "The French Revolution": - Causes (blue branch) - Key events (green branch) - Key figures (red branch) - Consequences (purple branch)
Write a maximum of one or two words per branch. No sentences.
Step 4: the sub-branches (details)
From each main branch, you draw 2 to 5 sub-branches towards the details.
Example — "Causes" Branch: - Economic crisis - Social inequalities - Enlightenment ideas - Weakness of the king
Step 5: keywords, symbols, connections
On each sub-branch: - A keyword (never a sentence) - Possibly a drawing, a symbol (imagery helps memory) - Arrows between branches when there are connections between ideas
This last point is what makes mind mapping powerful: your map shows the relationships between concepts, not just a list.
Concrete example: "Photosynthesis" mind map
Center: Photosynthesis (drawing of a plant)
Branch 1 — Ingredients (blue): - Light (sun drawing) - CO2 (bubble) - H2O (droplet)
Branch 2 — Products (green): - Glucose (molecule) - O2 (bubble)
Branch 3 — Location (brown): - Chloroplast - Chlorophyll
Branch 4 — Steps (purple): - Light phase - Dark phase
Branch 5 — Importance (red): - Base of the food chain - Atmospheric oxygen - Carbon cycle
Arrow between "Ingredients → Products" to show the transformation. Arrow between "Chlorophyll → Light phase" to show where it takes place.
At a single glance: you have the whole chapter.
The 5 mistakes that make your mind maps useless
1. Writing full sentences
A mind map is about keywords. If you write "The French Revolution begins in 1789 due to the economic crisis", you are copying your lecture notes. It is no longer a mind map.
Rule: max 1-3 words per branch.
2. Making a black and white mind map
Colors are not decorative. They help visual memory. Your brain associates a color with a theme.
Use at least 4 different colors.
3. No visual hierarchy
The main branches must be thicker or larger than the sub-branches. Your brain must see the hierarchy in one second.
4. Making a 4-page mind map
A mind map is 1 page. Only one.
If you run over, it means your chapter is too dense for a single mind map → make 2 mind maps (one for each sub-part).
5. Copying your lecture instead of synthesizing
The goal is not to include everything. It is to include the essential. A mind map is the skeleton of the chapter.
If you can remove a word without changing the structure, remove it.
Paper or digital mind map?
Paper (recommended for the first time)
Pros: - Better memorization (Mueller & Oppenheimer studies) - Stimulated creativity - Zero distraction - Physical contact
Cons: - Hard to modify - Takes up space - Can get lost
Materials: A3 sheet, 4-6 colored pens, 1 pencil.
Digital (recommended for heavy lectures)
Tools: - XMind (the most complete, free with a premium version) - MindMeister (collaborative, free plans) - Miro (large canvas, very flexible) - Excalidraw (simple, free, whiteboard style)
Pros: - Modifiable - Shareable - Takes up no space - Infinite number of branches
Cons: - Less memorized (2014 study) - Possible distraction (notifications) - Need to learn the tool
Recommendation: start on paper for your first mind maps (you learn the method). Move to digital for large, dense chapters.
How to use your mind maps to study (the most important part)
Creating the mind map = 30-45 min = 50% of the benefit.
The other 50% is how you use it.
Session 1: Redraw the mind map from memory
Look at your mind map for 2 minutes
Hide it
Try to redraw it from memory on a blank sheet of paper
Compare the two
This exercise is visual active recall. Extremely powerful for long-term memory.
Session 2: Explain the mind map out loud
Look at your mind map
Explain the chapter out loud, following the branches
As if you were teaching someone
This is the Feynman technique applied to mind maps. A formidable combination.
Session 3: Overview test
3 days before the exam, look at your mind map for 30 seconds
Hide it
Recite the main parts + sub-parts from memory
This is the final check to validate that you master the structure of the chapter.
The ultimate combo: Cornell + mind map + flashcards
Your ideal study strategy for a chapter:
In class: Cornell notes
After class: summary mind map (to see the structure)
Then: flashcards for the details to memorize
Continuous review: spaced repetition on flashcards + redrawing the mind map from memory
Each tool covers a different need: structure (mind map), details (flashcards), self-testing (Cornell + flashcards).
How Koro AI speeds up mind map creation
The main barrier to mind mapping: creation time. A well-made mind map takes 30-45 minutes.
Koro AI automatically generates a structure of your course (main parts, sub-parts, key concepts) in 30 seconds. You take this structure and transform it into a mind map manually (drawing, colors).
You save 30 minutes of preparation, and you focus your effort on the part that truly matters: visual memorization.
Conclusion
Mind mapping = organizing a course into a visual map (central idea + branches + sub-branches, in color). Your brain retains visual info 6x better than text. Rules: 1 page max, keywords (no sentences), 4+ colors, clear visual hierarchy. Use it to structure and see a course as a whole, not to memorize details (flashcards are better). After making your mind map, redraw it from memory = extremely powerful visual active recall. Winning combo: Cornell (notes) + mind map (structure) + flashcards (details).