Does your child waste time reviewing facts they already know?

The Leitner Box is a physical spaced repetition system. It schedules reviews at increasing intervals.

Here’s the promise: You’ll learn how to supercharge flashcards.

🧩 How the Leitner Box Works

You need 5 boxes or dividers. Flashcards start in Box 1. Each correct answer moves the card forward one box. Each wrong answer moves it back to Box 1.

🎯 How to Make a Leitner Box

Step 1: Get 5 boxes or index card dividers. Step 2: Make flashcards for abacus facts (complements, number bonds). Step 3: Start all cards in Box 1. Step 4: Review Box 1 daily, Box 2 every 2 days, Box 3 weekly, Box 4 biweekly, Box 5 monthly. Step 5: Move cards based on correctness.

💡 A Parent’s Success

“We made a Leitner Box for times tables. My son loved moving cards forward. Within a month, most cards were in Box 5. He now knows all tables instantly.”

You might wonder, “Can we use an app instead?” Yes — Anki and other apps use the same algorithm.

❓ FAQ — Leitner Box