0–3 puzzle: Read the transit-museum caption and circle every and exactly. 3–7 source: Establish that four points are calculated, not measured; no uncertainty bars or phase-change data. 7–12 teach: From the heat-budget graph row, ΔQ/ΔT=1,000 J/K, then c=(1,000 J/K)/(0.25 kg)=4,000 J kg⁻¹ K⁻¹. A straight model line is proportional under constant c, single phase and no loss, not universal evidence. 12–20 route: A/B/C labels slope, c and model domain in a corrected caption. 20–23 audit: Ask whether this is an experiment with accuracy evidence (no). 23–25 exit: Report slope with unit, c with unit and one excluded situation. Offer separate fresh Check B later if its case is new.
Evidence log: day | system/path/model | source value/assumption | calculation/unit or explanation | bounded correction | access route | content help | next move. Store real learner work only in a school-approved system. This QCAA crosswalk is narrow; school sequencing and instruments remain school decisions.
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