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.
Target: independently use a new PPF and criterion to explain opportunity cost, feasibility, technical efficiency and an equity limit in File H. Prepare: blank frontier and decision aids; support log.
Launch · 2 min. Explain the new fictional table is only a model under stated assumptions.
Source access · 4 min. Give File H alone and permit neutral reading of its coordinates.
Independent plan · 5 min. Learner marks axes, old frontier pairs, an inside point and missing distribution information.
Independent response · 7 min. Choose Day 10 route; preserve the first graph/calculation and reasoned choice before feedback.
Self-audit · 4 min. Learner checks 2→3 pop-ups forgoes three repair sets, and that no option is declared fairer without evidence.
Submit · 3 min. Collect work and log access/content support. Use public key for next learning step, not a QCAA result.