Job: compare available methods/findings and choose a useful next question. Ready: actual records if available; another appropriate attributed record/method only if it genuinely exists. Say: “What do we know? What is still open?”
- 0–3: Select one question for the child's shadow purpose. Check what actual records exist and who made them; a missing page/trial is not reconstructed from memory as a measured result.
- 3–8: Offer a short approved actual look/retry to clarify one useful uncertainty before paper comparison. If there is no actual source, name the exact account/model being interpreted.
- 8–12: Compare two available records/methods, including another investigator's only when available and attributed. Two ideal drawings are models, not two observed experiments. Ask what conditions/edge definitions/units are comparable and what differs.
- 12–20: The learner chooses a justified conclusion, a tentative relation or insufficient evidence. Consider alignment, ambient light, extended source or changed conditions as possible limitations without asserting a cause not observed. Choose a further question or a simpler comparison. No mandatory full error list or numerical average.
- 20–25: Keep an actual evidence-led reason and a next question. If no other investigator source was available, leave that I05 component open. Next: apply the available evidence to the learner's own design.