HCD.10:4.6 - Progress Challenge and Support Conditionally

Progress one material feature: increase variation, combine more contributions, shorten response time, add consequence, reduce an answer-bearing cue, change AI or tool support, require a more independent first move, or move closer to later-Work conditions. Keep the protected safety, privacy, authority, and domain constraints.

Use a rule rather than a ladder label. For example: after a successful independent variant, remove the detailed cue but retain source access; after an applicability error, restore the working entry and one discriminating question; after a calculation error, give calculation-specific feedback and retry a changed value; after recurring support dependence, compare supported and changed-support attempts before further withdrawal.

Pause, reverse, or redesign when error becomes unsafe, the learner cannot yet perform the basic operation, support removal changes the intended later task, feedback cannot be used, or the observation no longer distinguishes the progression assumption. No fixed fading path or difficulty increase is required.