Goal: pose a question about one changed material composition and make a genuine advance prediction if a test is planned. Proposed codes: AC9SFU03, AC9SFH01, AC9SFI01. Prepare: L setup paragraph only, question mat, Card 101.
- Source · 3 min. Name L FICTIONAL MODEL; confirm separately whether an adult-approved real pair exists. If not, REAL OBSERVATION NOT AVAILABLE.
- Read setup · 4 min. Read both same-outline arrow constructions before L's results. Children identify paper front on both and card backing on C.
- Model question · 5 min. Adult asks, “Will adding the card backing change the tip position in this gentle lift?” and records a possible prior prediction without claiming an outcome.
- Child try · 7 min. Card 101 routes ask/select one question and prediction before results; adult saves exact response/time/order if a real test will happen.
- Check · 4 min. Ask whether “C is stronger” is already known from its drawing. Child says material presence can be seen in a drawing but bending needs a genuine observation.
- Exit · 2 min. Keep question and prior-prediction status separate from result.