Teacher copy: This page may include teaching prompts or answer keys. Answer keys in this public library can be viewed by anyone. Give learners a clean prompt, use checks as formative evidence, and change a case locally when prior access matters.
Goal: plan steady grip, height, angle and reference so only backing differs. Proposed codes: AC9SFH01, AC9SFI01. Prepare:lift plan, fixed broad paper GRIP/LEVEL labels, adult local safety decision, Card 103.
Safety gate · 3 min. Adult confirms or declines clean large materials, joined backing, low table/catch and local permission; no child cuts or lifts.
Read · 4 min. Read L's planned same GRIP line, low hand height and LEVEL LINE. Explain ABOVE/AT/BELOW are positions, not millimetres.
Model error · 5 min. Move a paper GRIP marker for the second pretend arrow; say a changed grip makes cause unclear.
Child try · 7 min. Card 103 routes set a same/different plan and an INTERRUPTION rule for slipping grip or bump, without conducting a paper “test.”
Check · 4 min. Ask whether pulling one arrow upward and merely holding the other level is a fair comparison. Child names the extra action.
Exit · 2 min. Keep plan and safety decision; paper labels remain representation only.