Target: Link two plausible design professions to different parts of one brief, name a stakeholder and the evidence limit. Prepare: Card A, Evidence ladder.
Launch · 2 min. Ask: “Is a shelf sign the whole library problem?” Accept “no” and point to sign, physical token and space as separable work. Model · 4 min. Underline Card A's existing colour-dot sign. Say a graphic designer might change the information, an industrial designer the tokens, and an interior designer the shelf layout; each needs more information. Guided reading · 5 min. Learners identify borrower and volunteer needs and flag that the scripted librarian comment gives no frequency. Prompt, “Which exact words support that?” Practice route · 7 min. Let each choose a Day 1 route; require two role/output links, one stakeholder need and one unknown. Audit · 4 min. Swap or self-check: each role has a distinct output and the unknown is not presented as fact. Exit · 3 min. Complete: “I would ask ___ before claiming ___.” Use the Day 1 key.