Target/codes: re-sort the same ten fictional cards for two given questions while preserving the total and comparing counts; AC9MFST01, AC9MFN03. Prepare: P164's exact 2 oval/symbol, 4 oval/no-symbol, 1 spear/symbol, 3 spear/no-symbol cards.
- Question · 3 min. Show one card with both an outline and a symbol. Ask “Which feature would we need if the question is about shape?”
- Model · 4 min. Sort the first three cards by oval/spear outline; count all cards on the table so the child sees that sorting moves, rather than makes, cards.
- Guide · 5 min. Child finishes the first sort and counts 6 oval versus 4 spear. Reset all ten cards to a neutral pile.
- Independent route · 7 min. Day 164 A/B/C asks the child to re-sort by symbol shown/not drawn, count 3 versus 7, and answer that second question. A puppet garden, paper exhibition or information-page index can carry the same ten-card data.
- Evidence check · 4 min. Ask “Did the number of cards change? Why did the groups change?” A sound answer names the new question/rule and unchanged ten cards. Recount if a piece is missing.
- Exit · 2 min. Child points to the feature for one question. If they mix rules, lay the two question cards side by side and sort anew next time.