Make a biology concept map from your own notes

What a concept map is

Joseph Novak and his team at Cornell developed concept maps in 1972. In their words, a concept map has concepts in boxes and "words on the line, referred to as linking words or linking phrases, [that] specify the relationship between the two concepts." Two concepts plus the words between them make a statement you can read aloud: "the anterior pituitary releases ACTH, which stimulates the adrenal cortex."

• A focus question keeps the map small enough to be useful. "How does the body keep cortisol in check?" beats "the endocrine system".
• General at the top, specific below. Novak describes maps as hierarchical: the broadest concept first, details underneath.
• Cross-links join concepts from different parts of the map. In biology these are often feedback loops, and they are usually what the exam asks about.

Build one from the notes you already have

1. 1Write the focus question on a card in the corner, so every concept you add has to earn its place.
2. 2Pull out the concepts. Go through your lecture slides or handwritten notes and put each structure, hormone or process on its own card. Nouns, not sentences.
3. 3Order them. Drag the cards so the cause sits above the effect and the general sits above the specific. Don't connect anything yet.
4. 4Draw the arrows and label every one. If you can't name the link, that's the part of the lecture to reread.
5. 5Add the cross-links, especially feedback. Colour them differently so they stand out.
6. 6Put your source next to it. Snap a photo of the handwritten page or import the lecture PDF, and keep it beside the map while you work.

Worked example: the HPA axis

The ready board above maps the stress response, a favourite exam topic because it has a chain of three glands and a feedback loop. The facts come from OpenStax Anatomy and Physiology 2e, chapter 17:

• Stress activates the hypothalamus, which releases CRH (corticotropin-releasing hormone).
• CRH stimulates the anterior pituitary, which releases ACTH (adrenocorticotropic hormone).
• ACTH stimulates the adrenal cortex (the zona fasciculata) to make cortisol, a glucocorticoid.
• Cortisol raises blood glucose by breaking down glycogen, stored fat and muscle protein, and suppresses inflammation.
• Negative feedback: high cortisol inhibits CRH and ACTH release, so the chain switches itself off. These are the two red arrows.

Notice what the map makes obvious that a page of notes doesn't: the adrenal medulla and adrenaline aren't on it. They belong to the short-term fight-or-flight pathway, a different arrow from the hypothalamus. Mixing the two up is one of the most common mistakes on this topic, so the handwritten note on the board flags it.

Make it stick: test yourself with the map

Building a map is not the same as remembering it. In a 2011 study in Science, Karpicke and Blunt found that students who practised recalling a text learned more than students who studied it by drawing concept maps, even when the final test asked them to draw a concept map.

• Cover and rebuild. Hide the map, start a blank area next to it and redraw it from memory. Then compare.
• Read the arrows aloud. Every arrow should make a true sentence. If one doesn't, fix it.
• Answer the recall list. The ready board has a short checklist of questions. Tick each one only when you can answer it without looking.

For nursing students: the patient concept map

Nursing programmes use concept maps differently: one patient in the middle, with the problems and care plan around them. Your school's template decides the exact boxes, so check it first. A common layout:

• Patient and diagnosis in the centre.
• Pathophysiology: what is going wrong, in a few cards.
• Signs and symptoms, with the assessment data that shows each one.
• Labs and diagnostics, linked to the problem they confirm.
• Medications, each linked to the problem it treats.
• Nursing interventions, linked to the problem and the expected outcome.

Arrows matter here too: the point is to show why each intervention is there.

When another tool fits better

• You want the layout done for you. Lucidchart, Creately and EdrawMind arrange shapes automatically and have large diagram libraries. Instaboard doesn't lay out the map for you; you place each card yourself.
• You need a printout. If your instructor wants a printed or PDF map, a diagram tool or a printable template is simpler. Instaboard exports whole boards as PDF only for drawing boards; for a map like this you can save selected cards as an image.
• You want AI to draw it. Instaboard has no AI and won't generate a map from your notes.

Instaboard fits when the map is how you study: cards you can drag as your understanding changes, arrows that follow the cards, your handwritten notes and lecture PDFs next to the map, a pen for quick sketches, and any card can open into its own board, so cortisol can have a whole board of detail without cluttering the overview.

What to know before you start

• Free covers 5 boards and 150 cards and items across your account. Arrows, sections and pen strokes don't count toward the 150, so a concept map goes a long way.
• 3 images per board on Free. Enough for a few photos of notes; Pro has no image limit.
• No automatic layout, no AI, no flashcard mode. You build and test the map yourself.
• Sharing with a study group: anyone with the link can view; to edit, they sign in for free.

Questions