# Four reserved rechecks · staff

Use one unused source after a specific reteach. Give its first source alone, preserve that response, then reveal its separate new condition. Allow about 15–20 minutes for the first response and up to 10 minutes after the later condition. Record timing and support; agreed extra or split time is welcome. Prior source/key access ends a fresh claim. These forms are not equated.

- **E1:** [first source](../assessment/rechecks/E1-first.md), [later condition](../assessment/rechecks/E1-reveal.md); use [the separate key](RECHECK-KEYS.md).
- **E2:** [first source](../assessment/rechecks/E2-first.md), [later condition](../assessment/rechecks/E2-reveal.md); use [the separate key](RECHECK-KEYS.md).
- **F1:** [first source](../assessment/rechecks/F1-first.md), [later condition](../assessment/rechecks/F1-reveal.md); use [the separate key](RECHECK-KEYS.md).
- **F2:** [first source](../assessment/rechecks/F2-first.md), [later condition](../assessment/rechecks/F2-reveal.md); use [the separate key](RECHECK-KEYS.md).