If the user recall correctly the answer of the card, the card is promoted to the next compartment, if he is mistaken, the card is demoted to the first compartment. That way, all answers have to be recalled correctly the same amount of times sequentially.
(image from wikipedia)Once you finish with the card or cardset, they are archived. FlashCardExchange sugests they are periodically reviewed after archived in order to ensure memorization. Review schedule:
| Successful Completions | Next Review | Successful Completions | Next Review |
|---|---|---|---|
| 1 | Days: 4 | 8 | Months: 5 |
| 2 | Days: 7 | 9 | Months: 9 |
| 3 | Days: 12 | 10 | Months: 16 |
| 4 | Days: 20 | 11 | Years: 2 |
| 5 | Months: 1 | 12 | Years: 4 |
| 6 | Months: 2 | 13 | Years: 6 |
| 7 | Months: 3 | 14 | Years: 11 |
My cardbox has 6 compartments and I find it very usefull for learning the Finnish vocabulary.
