Integrative record B · Design and evidence
A separate fresh later task, not a validated equivalent form or a score of improvement. Tokens are fictional resource units, not prices or energy. Keep B1 out of view until you record a proposal.
90 g, start 12°C, room 24°C, 15 min. Final ≤17°C in EVERY trial; ≤6 tokens; ≤18 mm added thickness. Covered liquid water; cups/lids, mass, starting temperature, duration, exposure and reading procedure match within and across trials. Surroundings stay at the stated room temperature. No ice, phase change, active heating/cooling, direct sunlight or meaningful evaporative cooling. Each trial uses fresh samples. Accuracy is not supplied.
Constructed teaching data: these values were invented for this activity, not collected in an experiment.
| Design | Tokens | Added mm | Trial 1 final °C | Trial 2 final °C | Trial 3 final °C |
|---|---|---|---|---|---|
| R | 4 | 15 | 16 | 16.5 | 16 |
| S | 6 | 18 | 15 | 15.5 | 15 |
| T | 5 | 16 | 15 | 17.5 | 15 |
PF-B1. Check every requirement and compare all trials. Which designs qualify? Choose one with a stated priority; explain the warming using a scientific idea.
PF-B2. Propose one modification and a matched repeated test. Specify a prediction, constraints, recording plan, and evidence that would challenge it.
Integrative record B · Revised design record
Fictional prototypes, not your proposal’s results: R-tight closes a gap with an extra token; S-thin uses a thinner wrap. These constructed values were not measured. Starts/room/mass/time/procedure match B0.
90 g, start 12°C, room 24°C, 15 min. Final ≤17°C in EVERY trial; ≤6 tokens; ≤18 mm added thickness. Covered liquid water; cups/lids, mass, starting temperature, duration, exposure and reading procedure match within and across trials. Surroundings stay at the stated room temperature. No ice, phase change, active heating/cooling, direct sunlight or meaningful evaporative cooling. Each trial uses fresh samples. Accuracy is not supplied.
Constructed teaching data: these values were invented for this activity, not collected in an experiment.
| Design | Tokens | Added mm | Trial 1 final °C | Trial 2 final °C | Trial 3 final °C |
|---|---|---|---|---|---|
| R-tight | 5 | 15 | 15.5 | 16 | 17.5 |
| S-thin | 6 | 16 | 15.5 | 16 | 16 |
PF-B3. Reassess each prototype using every requirement and the original record. Describe tradeoffs; revise the claim without erasing an inconvenient trial.
PF-B4. What remains uncertain? Name a useful next test and explain why this record cannot prove that your own proposal works or identify a unique transfer pathway.