Goal: make a bounded comparison of four raw attempts and separate genuine evidence from M. Proposed codes: AC9SFU02, AC9SFI02, AC9SFI03, AC9SFI04. Prepare: four-run sheet, claim mat, school-approved apparatus only if safe, otherwise M, Card 94.
- Choose source · 3 min. Write ACTUAL with local date/approval/equipment if an investigation is genuinely run; otherwise M FICTIONAL MODEL and REAL OBSERVATION NOT AVAILABLE.
- Read prediction · 4 min. Retrieve the actual advance prediction if one exists. If not, mark NO PRIOR PREDICTION; do not manufacture one.
- Model raw record · 5 min. Adult models one labelled attempt without a push, or reads M's four original valid entries exactly; retain interruptions.
- Child try · 7 min. Under approved conditions adult conducts/records remaining brief attempts or reads M in order. Card 94 routes mark face, position and interruption for each; if too few valid attempts, say insufficient comparison.
- Check · 4 min. Compare exact valid stops to the advance prediction with guidance. “In these tries …” is allowed; “this face always slides farther” is not.
- Exit · 2 min. Save raw dated genuine record or labelled M and the child's exact bounded claim.