Target/codes: compare four physical tokens, pictures and symbols by category and position against the fictional source; AC9TDIFK02 partial. Prepare: source, mat.
- Preview · 3 min. Rebuild the four numbered source positions with broad tokens; avoid relying on colour.
- Notice · 4 min. Ask “How many PANEL entries? Which positions?” The source says two, at 1 and 3; TUBE at 2 and BLOCK at 4.
- Model · 5 min. Rearrange only the symbol row as P P T B. It still has two P, one T and one B, but position 2 no longer matches TUBE. Counts alone do not prove a faithful ordered copy.
- Child route · 7 min. Child restores P T P B using object tokens and pictures as evidence, then gives one count and one position reason by pointing, speaking/AAC or directing an adult.
- Check/respond · 4 min. Record the restored row and explanation. If the child says P P T B is identical, compare source and copy at position 2 first, then 3; accept a partial correction and revisit.
- Close · 2 min. Finish “Two PANEL entries are at ___ and ; the row order is .”