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Turn your Horizons math lessons into flashcards with AI

Upload the pages your student is working on and get question-and-answer cards that match the lesson, then review them on a spaced repetition schedule.

Create flashcards nowFree · No credit card required

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

Free · First set needs no signup · Creates flashcards in seconds

Why custom cards beat a generic deck

Parents and students working through a Horizons math book often search for horizons math flashcards, hoping to find a ready-made set. Pre-made decks rarely line up with the exact lesson, page, or problem type your student is on. DeckOwl takes a different approach: you upload your own pages and it writes cards from them.

Cards come from the pages your student is actually working on.
Photos of workbook pages are read with text recognition.
Missed cards return sooner through spaced repetition.
Edit any card before you start studying.

Example elementary math flashcards for Horizons math topics

What is the commutative property of addition?Changing the order of the addends does not change the sum, such as 4 + 7 = 7 + 4.

What is 6 × 7?42. Its fact family is 6 × 7 = 42, 7 × 6 = 42, and 42 ÷ 6 = 7.

What is the place value of the 4 in 3,482?Hundreds, so the 4 stands for 400.

What fraction is equivalent to 2/3 with a denominator of 6?4/6, because multiplying the numerator and denominator by 2 keeps the value the same.

What is the perimeter of a rectangle that is 5 cm by 3 cm?16 cm, found by adding 5 + 3 + 5 + 3 or by calculating 2 × (5 + 3).

Generate the full set

Upload any page

Send PDFs, slides, notes, or photos of worksheets and get cards built from your own material.

Spaced repetition

Cards that are missed come back sooner, so review time goes to the facts that need it most.

Study in the browser

The free plan includes browser study with 3 generations per month. Plus adds PDF, DOCX, Anki, and CSV exports.

How it works

Upload your material

Add a PDF, DOCX, PPTX, text file, or photos of the pages you are studying.

Review the cards

Check each question and answer pair and edit anything that does not match your lesson.

Study on a schedule

Spaced repetition brings each card back at the right time so the facts stay with you.

Photos of workbook pages are read with text recognition, so you can snap the lesson and skip retyping. Each card has a question on the front and the answer on the back, and you can edit anything that looks off before studying.

Spaced repetition then schedules reviews so facts like times tables and place value stick across weeks, not just the night before a test.

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Frequently asked questions

How many flashcards should a student make for one math lesson?

Aim for one card per rule, definition, or fact in the lesson, which is often 10 to 20 for a single section. Shorter sets are easier to finish each day.

What is the best way to practice math facts with flashcards?

Review a small set every day and mix in older cards so earlier facts do not fade. Say the answer aloud before flipping the card to check yourself.

Can I export my Horizons math flashcards?

Exports to PDF, DOCX, Anki, and CSV are part of the Plus plan at $39/year or $7.99/month. The free plan lets you study in the browser with 3 generations per month.

Do I need a credit card to try DeckOwl?

No, you can start on the free plan without a credit card. Students with a school email get 40% off Plus.

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