# Public worked teacher key and next moves · Days 15 and 20

**Teacher-targeted; public by URL.** Keep this out of child handouts and collect first child-controlled responses before sharing feedback. The cases are fresh compared with practice but **not secure exams**. Prior access calls for a new locally authored parallel case. Accept pointing, speech/sign/AAC, drawing and adult-directed placement as equivalent target evidence; record content cues. Never request an actual child name or photo. The author has not observed a classroom or child result.

## Day 15 · Paper Shape Depot

1. **Three forms and repeat:** physical objects are **four large real safe tokens** placed for ARCH, TILE, ARCH, RING in positions 1–4; pictures are the original arch/tile/arch/ring silhouettes; symbols are **A T A R**. **ARCH** appears twice, in positions **1 and 3**. If a child draws a token but never handles/chooses a physical one, record picture work and leave object-form evidence open. If a category count is correct but order is wrong, re-anchor to numbered source pictures.
2. **Copy repair:** puppet **A T R R** differs from source **A T A R** first at **position 3**. Source picture 3 is ARCH, so the agreed symbol is **A**, replacing the puppet's R. The corrected copy is A T A R. If a child changes position 4, return to the ring picture and R there; ask them to compare one pair at a time.
3. **Personal category:** the empty **MY NAME** placeholder could be a kind of personal data owned by the child *if filled*. It contains no name. PLAIN PROP ICON is neutral invented data. This is partial category recognition, not a legal/privacy determination. Do not record the child's real name as a check answer.

**Next move:** If physical token/picture/symbol forms blur, place a broad physical token beside the printed arch picture and A letter. If the child identifies the mismatch but cannot justify it, ask which source image 3 shows. If strong, offer a new independent four-entry source after feedback. This paper check cannot evidence K01 actual digital-system use.

## Day 20 · Paper Form Drawer

1. **Three forms and repeat:** physical objects are four broad real tokens for **WEDGE, DISC, WEDGE, SLOT** in positions 1–4; pictures are the original triangular wedge, round disc, wedge and rectangular slot; symbols are **W D W S**. **WEDGE** appears twice at positions **1 and 3**. Count four entries, not shapes within a picture. Note any adult-supplied category or letter separately.
2. **Copy repair:** puppet **W D S S** differs from source **W D W S** first at **position 3**. Source picture 3 is WEDGE, symbol **W**, so change copy S→W there. Corrected copy is W D W S. Position 4 SLOT correctly remains S. Do not award source-linked reasoning if the answer was adult-cued without the child's own choice.
3. **Personal category:** blank **MY FACE PHOTO** could be a category of data owned by the child *if filled*; no photo is present or requested. PLAIN PROP ICON is neutral invented data. Naming a category does not demonstrate legal knowledge, actual consent handling or broad digital safety.

**Next move:** If only counts are understood, use a new source with the same count but swapped order and compare positions. If the child understands the copy correction, ask them to create a different fictional mismatch. Keep privacy discussion gentle and handle any real disclosure under school policy. K01 device exploration stays a **separate observed gate**; a check PDF, screenshot, paper manipulative or adult click cannot establish it.

## Private teacher record

Record exact source-linked first response, route, physical-token evidence, image/symbol match, copy-correction reason, privacy category choice and adult content cue. In a distinct field record actual approved device, child-controlled input, display response, running software purpose or **NOT OBSERVED**. Keep real learner evidence in the school's private system, never in SubjectNest public files.