Words that need more practice show up more often in the race.
| Word | Missed | Show answer | Right | In a row | Extra practice | Last practiced |
|---|
Missed: times the word had at least one wrong letter. Extra practice: how many extra times the word appears in each round (up to 6). Pressing Show answer adds 2, missing a word for the 2nd time or more adds 1, and spelling it right on the first try takes 1 away. In a row: first-try right answers in a row. Each one makes the word less likely to come up in the next round (1 in a row: half as often, 2: a quarter, 3 or more: about 1 in 10). A miss or Show answer resets it.