The infographic gives a simple schedule. On the day you learn something, recall it once right away. Then recall it again on day 1, day 3, day 7 and day 21.
Key idea
Count every day from the day you learned it (day 0). Day 1 is the next day; day 3 is three days after learning; and so on. Each gap is longer than the one before.
Worked example: Worked example
You learn a poem on March 5. When are the four reviews?
- Day 1: March 5 + 1 = March 6.
- Day 3: March 5 + 3 = March 8.
- Day 7: March 5 + 7 = March 12.
- Day 21: March 5 + 21 = March 26.
Answer: March 6, 8, 12 and 26.
Worked example: Crossing into a new month
You learn a list on April 20. When is the day-21 review? (April has 30 days.)
- April 20 + 10 days reaches April 30.
- 11 more days reaches May 11.
Answer: May 11.
At each review: recall first, then check. Reread only what you missed. Missed items come back sooner; easy ones can wait longer.
A starter schedule, not a law. The research supports spacing and growing gaps; it does not prove 1, 3, 7 and 21 are the best numbers for everything. They are easy to remember and work well. If you need it for months, keep going: a review every month or two.