Target/codes: compare a symbol copy position by position with the pictorial source and correct the mismatched representation; AC9TDIFK02 partial. Prepare: source, puppet copy, broad P/T/B cards.
- Preview · 3 min. Introduce a friendly puppet whose paper copy may need checking; the puppet's error is useful, not a child's failure.
- Notice · 4 min. Read SOURCE P T P B and PUPPET COPY P T B B slowly under positions 1–4.
- Model · 5 min. Match position 1 P to PANEL and position 2 T to TUBE; stop before the mismatch and ask the child to compare the next picture.
- Child route · 7 min. Child identifies position 3, replaces copy B with P, and verifies all four positions using physical tokens, large pictures or adult-directed symbols.
- Check/respond · 4 min. Record the first independent mismatch found and content cues. If they correct position 4 because it also says B, anchor to picture 4 BLOCK; if they change counts without checking position, pair source/copy one by one.
- Close · 2 min. Child states “I changed position ___ because source ___ says ___.”