# C-first-1 · teacher component

**Complete held source:** Original fiction. The wanted paper game job is to rest wholly inside a broad drawn harbour. One helper uses the same broad paper boat picture, flat mat, start and harbour direction for four resets. Equal drawn spaces mark resting distance from the start. Two pushes labelled gentler rest one then two spaces away. Two pushes labelled firmer but still gentle rest two then three spaces away. Actual force, full path and a next attempt were not measured or supplied. The harbour boundary is not marked in these distance records.

**Exact own prompt:** Describe the four supplied resting distances, including any shared result.

**Descriptive criterion:** Reports gentler one/two, firmer two/three and shared two; does not discard overlap, invent averages/units or place the unmarked harbour boundary.

**Worked possibility, after own evidence:** Gentler-labelled records are one and two spaces; firmer-labelled records are two and three. Both include two spaces.

## Complete unrelated next account · Four paper-post attempts

**Full source:** Original unrelated fiction. Same broad postcard/start/mat/helper/direction, four resets. Gentler-labelled pushes rest two then three equal drawn spaces away; firmer-labelled pushes rest three then four. Force unmeasured.

**Own invitation:** Describe both pairs and a shared result.

**Teach:** Read each pair in a separate turn. Ask the learner to mark the four rests in empty rows. Compare shared three and preserve each pair rather than replacing variation with a single model number.

**Observe:** Both complete pairs and shared three are retained; no physical units or average invented.

Record the first exact evidence before help. A later source requires an actually recorded separate teaching opportunity. Source reasoning does not award an unperformed procedure or observation. Declined/not offered/not elicited/selected relation not shown remain distinct. This is not an official band or an annual grade.