Goal: report one property of a specific pair, preserving the comparison reference. Proposed codes: AC9EFLY01, AC9EFLY05, AC9EFLY07. Prepare: Card 133, source A, two aligned strips and fact/wonder mat.
- Print retrieve · 3 min. Read known map, mat, red at the child's taught point with no object clue; adult supplies untaught print.
- Model · 4 min. Show source A's longer paper in this pair. Say “all paper is longer” changes the meaning and lacks evidence.
- Guide · 5 min. Children align strip ends and describe only the current pair; adult describes for nonvisual route. Compare “this paper strip is longer” with “paper is always longer.”
- Child report · 7 min. Child picks maker, book or costume display route and reports one observation plus its named reference to a chosen listener/mode; record if report actually went by voice to a peer.
- Source check · 4 min. Listener offers a counterexample pair or asks whether the material alone fixes length. Child may revise from “all” to “this pair.” Keep first response.
- Exit · 2 min. Child completes “I know this pair ; I have not tested .” If source missing, revisit one labelled pair.