Field Guide · For everyone

Flashcards from your own notes.

Field Guide, Study with AI, part 2 of 6. Your own notes into ten flashcards, tested on free ChatGPT: clean cards in seconds, and the list of what didn't fit.

5 Nov 2026 · 4 min read · sources read up to 5 Nov 2026

Notes read three times, and one question from a friend still leaves you blank. Flashcards make you answer the question yourself, but making them by hand is slow. This is part 2 of the Field Guide series on studying with AI: one job, tested on a real screen, with the catch said plainly.

The job, and what to type

Use only notes you wrote yourself, in your own words. Not textbook pages, lecturer slides or handouts, question papers, a classmate's notes, or notes copied word for word. The notes below are a sample on photosynthesis, made up for this demo.

Make flashcards from my notes below.
- 10 cards. Front: one short question. Back: the answer in 12 words or fewer.
- Use only what is in my notes. Don't add new facts.
- Don't put the answer in the question.
- Give them as a table with two columns: Front | Back.
- After the table, list any line from my notes that no card covers.

My notes:
Photosynthesis = plants making their own food (glucose) using light energy.
It happens in chloroplasts, mostly in leaf cells. Chlorophyll is the green pigment that absorbs the light.
Needs: carbon dioxide (from the air, in through the stomata), water (from the roots), light.
Makes: glucose and oxygen. The oxygen goes out through the stomata.
Word equation: carbon dioxide + water -> glucose + oxygen (light needed).
More light, more carbon dioxide or a warmer day speeds it up, until something else runs short.
Too hot and the enzymes stop working, so it slows down.
The plant uses the glucose for energy (respiration), stores it as starch and makes cellulose for cell walls.

Why these lines

Any chatbot will make flashcards. Three lines in this prompt make them flashcards of your notes. "Use only what is in my notes. Don't add new facts." keeps out anything you didn't write: a fact the AI adds can be wrong, and it isn't in your notes to check against. "Don't put the answer in the question" stops cards you can answer just by reading the front. "List any line from my notes that no card covers" shows you the gaps instead of hiding them. The 12-word limit keeps each answer short enough to say out loud.

How it was tested

One run on 5 November 2026, on free ChatGPT in a web browser, signed in to a personal demo account. The chat was a temporary chat set to Unpersonalized, which does not use memory, custom instructions or plugins ^[2]. The five checks were written down before the prompt was sent.

1. Exactly 10 cards, as a Front and Back table.
2. Every answer can be found in the sample notes: nothing added.
3. Every line of the notes has a card, or is listed as left out, and that list is true.
4. Every answer is 12 words or fewer.
5. No question gives its own answer away.

What came back

Ten cards were on screen in about ten seconds, numbered, in a two-column table. Every answer traced back to a line in the notes, and nothing new crept in. The longest answer was nine words ("More light, more carbon dioxide or a warmer day."). No question held its own answer: "How does carbon dioxide enter the plant?" doesn't mention the stomata.

All five checks passed.

The catch

Ten cards couldn't hold eight lines of notes. Under the table, it listed four details that no card tests: water comes from the roots, oxygen goes out through the stomata, photosynthesis speeds up only until something else runs short, and cellulose is used for cell walls. The list was true. Skip it, and those four details never get tested.

So one more message went into the same chat: "Now make one more card for each line you listed as not covered. Same rules: the answer in 12 words or fewer, only from my notes, the answer not in the question." Four more cards came back, one for each gap. Card 13 is a weak one: "Until something else runs short." means little on its own, so it's worth rewriting by hand. Read every card before you learn it.

The stamp

Works · 5 Nov 2026 · free ChatGPT, in a browser · 5 of 5 checks passed. Ten clean cards in about ten seconds, nothing added, short answers, no answer given away, and an honest list of what didn't fit. The follow-up message came after the stamp and isn't part of the five checks. One run is one run: try it with your own notes and see what yours does.

Before you use it

For revising only. Never in an exam, and for marked work, follow your school's or college's AI rules. ChatGPT is for ages 13 and over, or the minimum age in your country, and under 18 needs a parent's or guardian's permission ^[1].

The raw answer, word for word

The table came back as a table; it's written here as Front | Back lines.

Here are your 10 photosynthesis flashcards, using only your notes.

Front | Back
1. What is photosynthesis? | Plants making glucose using light energy.
2. Where does photosynthesis happen? | In chloroplasts, mostly in leaf cells.
3. What is chlorophyll? | The green pigment that absorbs light.
4. What three things does photosynthesis need? | Carbon dioxide, water and light.
5. How does carbon dioxide enter the plant? | Through the stomata from the air.
6. What are the products of photosynthesis? | Glucose and oxygen.
7. What is the word equation for photosynthesis? | Carbon dioxide + water → glucose + oxygen (light needed).
8. What conditions speed up photosynthesis? | More light, more carbon dioxide or a warmer day.
9. What happens when it gets too hot? | Enzymes stop working, so photosynthesis slows down.
10. How does a plant use glucose? | For respiration, starch storage and making cellulose.

Lines from your notes not covered by the cards
- Water comes from the roots.
- Oxygen goes out through the stomata.
- Photosynthesis speeds up until something else runs short.
- Cellulose is used for cell walls.

ChatGPT can make mistakes. Check important info.

The follow-up answer, word for word

Front | Back
11. Where does the water used in photosynthesis come from? | The roots.
12. How does oxygen leave the plant? | Through the stomata.
13. Until when does photosynthesis speed up? | Until something else runs short.
14. What does cellulose make in plants? | Cell walls.

ChatGPT can make mistakes. Check important info.

Next in the series, part 3: "Explain it like I have 10 minutes".