Goal: apply source/unknown reasoning to plant/animal feature, object movement and material-property examples, without treating invented marks as events. Proposed codes: AC9SFU01, AC9SFU02, AC9SFU03, AC9SFI03. Prepare: Model marks M1/M2/M3, source choice S, actual records only if available, Card 48.
- Label · 3 min. Present M1/M2/M3 as invented drawings. No local plant, moving object or surface is supplied by them.
- Read · 4 min. Child identifies one exact drawn mark on each and selects the source type MODEL.
- Model · 5 min. Teacher chooses M2: “The arrow points right. To say how a real object moved, I need an approved actual dated trial.” Repeat source logic, not a new science fact.
- Child try · 7 min. Card 48 routes ask one safe question for each domain and choose what real source could answer it. If a real dated earlier record exists, child may link it separately with exact provenance.
- Check · 4 min. Offer “M1 proves this species has two leaves.” Child repairs to drawing marks and unknown species/real features.
- Exit · 2 min. Child names which of the three needs a future local observation; do not credit content codes from drawings alone.