Target/codes: Set a dry landing-pad criterion for empty A/B vessels and compare it with the cue purpose; AC9TDEFP01.
- Welcome · 3 min. Recall the gentle-cue idea. Explain that the new user is an adult placing two separate empty unbreakable vessels on a clear dry table.
- Notice source · 4 min. Show dry vessel brief: EMPTY A and EMPTY B are schematic, with no water or placement result.
- Model · 5 min. “For a dry landing, I need the visible base of each vessel fully inside the broad pad boundary when an adult places it.” A gentle cue preference does not prove this new criterion.
- Child design talk · 7 min. Child proposes a broad pad boundary and a large A/B finding label, then says what an adult would need to inspect for each vessel. A/B are placed separately, never stacked. No tip/push/water test.
- Check/respond · 4 min. Record new user, criterion and unknown for A and B. If child says “B holds more,” ask what filled-volume evidence would be needed; this design brief supplies none.
- Exit · 2 min. “My cue pad question was ; my dry pad question is .”