V06 — Ruler before and after lane. Original proposed aid. Role: Distinguish retrospective data from a new genuine prediction/familiar-instrument measurement opportunity.
Complete visible source: Ordinary fictional storeroom plan. Two labelled rock-display silhouettes, S and T, lie beside a printed centimetre scale. S spans 0–4 cm and T spans 0–6 cm on the supplied diagram. The plan asks, “Which labelled silhouette has the longer base in this drawing?” The same scale, left-edge zero convention and base direction are used. A sealed display cannot be scratched or opened. The supplied readings are retrospective: they are not children's prior predictions or measurements of actual rocks. A separate optional classroom job uses two large plain paper rectangles, chosen by the adult, to practise a real ruler procedure.
Complete layout and relationships: Whole ordinary source. Supplied diagram baselines S0–4cm/T0–6cm with shared zero, identical1cm intervals, endpoints/units printed and diagram-only caption. Before prediction lane explicitly says no prior prediction supplied; never implies an existing prediction. Lower independent New plain-paper investigation area has five empty headings Question, Before prediction and clue, Safe/fair plan, Actual ruler reading and unit, After comparison. Drawn ruler is a model; actual I03 opportunity uses a real familiar cm ruler on plain paper under adult preparation.
Visible labels in reading order: V06 supplied S4/T6cm Shared zero, equal1cm intervals No before prediction recorded New paper investigation not yet performed My question My before prediction/clue My safe/fair plan My actual reading/cm My after comparison
Own-work state: All five own areas empty; declining is allowed. Reading the diagram is not physical I03 conduct. No hidden sound, colour-only clue, actual experiment, local observation, reader success or automatic verdict. All visible source relationships are given as text; helper reads verbatim and leaves own areas blank.
Actual generated original plane: My question — genuinely empty interior My before prediction and clue — genuinely empty interior My safe/fair plan — genuinely empty interior My actual ruler reading and unit — genuinely empty interior My after comparison — genuinely empty interior
Complete actual visible wording, in reading order: V06 · Ruler before and after lane Original supplied source / ordinary model Ordinary fictional storeroom plan. Two labelled rock-display silhouettes, S and T, lie beside a printed centimetre scale. S spans 0–4 cm and T spans 0–6 cm on the supplied diagram. The plan asks, “Which labelled silhouette has the longer base in this drawing?” The same scale, left-edge zero convention and base direction are used. A sealed display cannot be scratched or opened. The supplied readings are retrospective: they are not children's prior predictions or measurements of actual rocks. A separate optional classroom job uses two large plain paper rectangles, chosen by the adult, to practise a real ruler procedure. 0 1 2 3 4 5 6 S 4cm T 6cm Shared zero/equal1cm intervals; supplied diagram only. No before prediction recorded. New plain-paper investigation has not been performed. My question My before prediction and clue My safe/fair plan My actual ruler reading and unit My after comparison All five own areas empty; declining is allowed. Reading the diagram is not physical I03 conduct. Original NeuroForge/SubjectNest2026 · education CC BY4.0. Full text alternative supplied. Paper Finish erases nothing. Whole canvas840×2288. This large readable vector can be zoomed. Matching HTML paper pages paginate text and empty responses instead of shrinking the whole vector onto one sheet.