Goal: determine whether A/B records show same subject, distinct subjects or unknown, before comparing external features. Proposed codes: AC9SFU01, AC9SFI03, AC9SFI05. Prepare: source-compare, two optional genuine rights-cleared photo/source records or invented Model A two frames, Card 84.
- Identity gate · 3 min. Check source IDs/dates/rights for any real photos; do not call two crops two animals. Model A is one invented figure.
- Read · 4 min. Put WIDE/CLOSE A together and name SAME DRAWING, then show source ID fields needed for real pair.
- Model · 5 min. Teacher fills SAME SUBJECT / DISTINCT / UNKNOWN. If real identity cannot be established, say UNKNOWN rather than guessing from appearance.
- Child try · 7 min. Card 84 routes classify pair and name one visible mark/feature per actual source when supported; otherwise compare only drawings.
- Check · 4 min. “Two views means two animals” is corrected with source identity and crop limits.
- Exit · 2 min. Save cautious source-pair decision; grouping remains for later actual distinct subjects.