Goal: pose a clear movement question and record a prediction before any genuine result. Proposed codes: AC9SFU02, AC9SFH01, AC9SFI01. Prepare: question mat, complete M text, approved setup only if already cleared, Card 91.
- Name source · 3 min. Mark M FICTIONAL MODEL. State separately whether an approved actual carton trial is possible; if not, REAL OBSERVATION NOT AVAILABLE.
- Notice · 4 min. Read M's setup paragraph without results. Ask what changes when the same carton rests on broad rather than narrow face.
- Model · 5 min. Teacher asks “Does the carton reach the same ordered mark on each face?” and writes a possible prior prediction with time/order, not a fact.
- Child try · 7 min. Card 91 routes make/select one testable question and prior prediction. Adult records exact wording or AAC selection before any result is shown.
- Check · 4 min. Offer “We can make a prediction after reading the stops.” Child distinguishes an advance prediction from an after-result guess.
- Exit · 2 min. Save question/prediction separately from later observation; no outcome inferred.