Teacher copy: This page may include teaching prompts or answer keys. Answer keys in this public library can be viewed by anyone. Give learners a clean prompt, use checks as formative evidence, and change a case locally when prior access matters.
Invite: How can a record choose among three alternatives?
Encounter/model: Pretend kite badges: input<2 add0; otherwise input<5 add3; otherwise add5. From0 on[1,3,8] the totals are0,3,8. Threshold2 belongs to the middle and5 to the last.
Own practical action: Choose an own invented three-outcome rule; create IF inside FOR EACH with a nested IF in one body. Fill both bodies, predict one useful input per outcome, run/inspect and change a threshold.
Observe/check: Does the second decision happen only after the first fails? Does changed input alter actual branch/action?
Possible misconception: Treating nested alternatives as two independent IF tests and applying both awards.
Next teaching move: Draw or state one decision path, then compare its actual branch trace.
Use: choose one route, one model or neither where unnecessary. No30-route log or all-context quota. Home/extra 6 is an independent free offer, not required catch-up.