Turn YouTube lesson notes into number flashcards with AI
Paste notes, upload slides or a PDF, and get flashcards for the number facts your teacher actually covered, reviewed on a spaced repetition schedule.
Why custom number flashcards beat printables
Pre-made printable sheets cover generic counting, but the numbers that stick are the ones from your own lesson. DeckOwl turns notes from a YouTube video into number flashcards you can review with spaced repetition.
- Use notes or slides from the exact lesson you watched
- Cover prime numbers, square numbers, place value and fraction equivalents
- Review missed cards more often than the ones you already know
- Start free with 3 generations per month and study in the browser
Built from your material
Cards come from the notes, slides or PDF you upload, so they match the lesson instead of a generic counting sheet.
Spaced repetition
Cards you miss come back sooner and cards you know fade out, so number facts stick without cramming.
Images work too
Photograph a page of worked problems and the text is read with recognition, then turned into cards.
How it works
Add your notes
Paste text from a video's notes or transcript, or upload a PDF, DOCX, PPTX or image.
Generate the cards
DeckOwl writes flashcards for the key number facts, with the answer on the back.
Review on a schedule
Study in the browser on the spaced repetition schedule, and export to Anki or CSV on a paid plan.
Start with the facts your teacher stressed or the ones you missed on a quiz. Keep each set small enough to review daily, then add more as the early cards start to feel automatic.
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Frequently asked questions
How many number flashcards should I make for one lesson?
Start with 10 to 20 facts your teacher emphasized or that you missed on a quiz. Add more once those feel easy, since small sets reviewed often work better than one long deck.
Which number facts are worth memorizing as flashcards?
Prime numbers up to 50, squares up to 15 squared, and common equivalents like 1/4 = 0.25 = 25% are good starting points. Put the fact on the front and a short reason on the back.
Can I export these number flashcards?
Export to PDF, DOCX, Anki and CSV is part of the Plus plan at $39/year or $7.99/month. The free plan has 3 generations per month and lets you study in the browser.
Does DeckOwl pull cards directly from a YouTube link?
No, DeckOwl does not read YouTube links directly. Paste the notes or transcript you have, or upload a PDF or slides, and the cards are built from that text.
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