Later check · Changed requirements
100 g, start 10°C, room 22°C, 20 min. Final ≤15°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 |
|---|---|---|---|---|---|
| X | 4 | 16 | 14 | 14.5 | 14 |
| Y | 6 | 18 | 13 | 13.5 | 13 |
K6-T1. Evaluate the original brief. Now lower the budget to 4 tokens but keep the other requirements and 22°C room. Which design, if any, is feasible? State the exact scope of that answer.
Record your answer before receiving T1. This is a new later task, not a validated equivalent form or a mastery test.
Later check · One new environment record
100 g, start 10°C, room 28°C, 20 min. Final ≤15°C in EVERY trial; ≤4 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 |
|---|---|---|---|---|---|
| X only | 4 | 16 | 17 | 17.5 | 17 |
K6-T2. Does X meet the 15°C criterion in this new record? Compare the new room with T0. What should be retained or narrowed, and can you rank X against Y at 28°C?
K6-T3. Suggest a next design or comparison while keeping the 4-token/18-mm limits. What would you do if the next readings were close or variable and accuracy was unknown?