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Turn your math lessons into concept flashcards with AI

Upload a chapter, lecture deck or photo of your notes. DeckOwl pulls out the key definitions, theorems and formulas as flashcards you can review on a spacing schedule.

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Drop files here or browsePDF, DOCX, PPTX, text or photos of your notes · several files with Plus

Free account · 3 sets a month · Creates flashcards in seconds

Why custom cards beat printable sets for math

Many students search for ready-made sheets, and printable math concepts flashcards can be a fine warm-up. They rarely match the notation, examples and order your own course uses, which is where exam questions often come from.

Works from PDFs, slides, DOCX, text notes and photos of pages
Cards cover definitions, theorems, formulas and worked-example steps
Spaced repetition schedules reviews based on how well you recall each card
Free plan includes 3 generations per month with browser study

Example algebra and calculus concept flashcards

What is the slope of a line through two points?Rise over run: the change in y divided by the change in x between the two points.

What does the Pythagorean theorem state?In a right triangle, a² + b² = c², where c is the hypotenuse opposite the right angle.

What does the derivative of a function measure?The instantaneous rate of change at a point, which equals the slope of the tangent line there.

How do the mean and median of a data set differ?The mean is the sum divided by the count; the median is the middle value once the data are sorted.

What does the Fundamental Theorem of Algebra say?Every nonconstant polynomial with complex coefficients has at least one complex root, so a degree n polynomial has n roots counting multiplicity.

Generate the full set

Reads your actual material

Upload PDFs, DOCX, PPTX, plain text notes or photos of a whiteboard. Text recognition handles pages you photographed.

Cards built from your course

Each card comes from the concepts in your own lesson, so the terms match your textbook and your instructor's wording.

Spaced repetition included

Cards you miss come back sooner and cards you know fade out, so you spend less time re-reading what you already have.

How it works

Upload your math material

Add a PDF of your chapter, a slide deck, typed notes or a photo of a page.

Generate and review the cards

DeckOwl creates flashcards for the concepts it finds. Edit anything that is unclear before you start studying.

Study on a spacing schedule

Review in the browser on the free plan. Plus adds exports to PDF, DOCX, Anki and CSV.

Generating cards from your own lecture slides or textbook chapter keeps the definitions and theorems in line with what you were taught. You can start with one unit, check the wording, and add more as the term goes on.

Spaced repetition then does the scheduling work. Concepts you miss on a given day return within a short interval, while the ones you know are shown less often, which is what makes repeated review of formulas stick.

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Frequently asked questions

How many flashcards should I make for a unit on derivatives?

Aim for one card per distinct idea, such as the definition, the power rule, the chain rule and the meaning of a derivative in context. Most single units work well with 20 to 40 cards, and you can add more once you see gaps.

Should a math flashcard show the formula on the front or the back?

Put the concept or a question on the front, such as what a theorem says or when to use it, and the formula or statement on the back. Testing yourself on when to apply a rule is more useful than memorizing the formula alone.

Can I export math flashcards to Anki?

Exporting to Anki is a paid feature on the Plus plan, which is $99.90/year or $9.99/month. Exports to PDF, DOCX and CSV are also included on Plus.

Is there a free plan to try it?

Yes. The free plan includes 3 generations per month and browser study, and no credit card is needed to start.

Generate free flashcards

Keep exploring the topic

Review the main ideas visually or practice recalling them.