Curiosity, period by period — fitted to your timetable.
Tell Meyy your periods and their length; it plans every chapter of Curiosity to fit, and you tick off sections as you teach.
Can Your Hands Tell the Truth?
Observe and question the limits of sensory perception · Hands-on Science
This is the chapter's opening unit, anchoring everything that follows in a lived contradiction students can articulate in their own words. Watch for students who assume one hand simply 'got it wrong' — the productive insight is that both hands gave a genuine signal, yet those signals disagreed, which is precisely why an objective measure is needed. A useful checkpoint before moving on: ask the class to state in one sentence why the activity showed touch is unreliable.
0-5Teacher introduces the opening scenario about Lambok and Phiban — can fever always be detected by touch — to motivate the investigation.
5-20Groups carry out the hand-dipping activity, recording individual predictions and observations on their sheets for each water container.
20-32Groups share findings; class discussion surfaces the key contradiction — the same water felt warm to one hand and cool to the other simultaneously.
32-40Teacher consolidates the inference: sensory perception of hotness and coldness is context-dependent and cannot be relied upon for accurate judgement.
Competency (C-1.3). Explains the importance of measurement and measures physical properties of matter (such as volume, weight, temperature, density) in indigenous, non-standard and standard units using simple instruments.
Learning outcome. Students can demonstrate, using evidence from the hand-dipping activity, why sensory perception alone cannot reliably determine whether a body is hot or cold, and state what temperature as a concept provides instead.
In the hand-dipping activity, a student dips her right hand into warm water and her left hand into ice-cold water, then both hands into tap water. She reports that the tap water feels cool to her right hand and warm to her left hand at the same time. What does this result best demonstrate?
- A Our sense of touch gives different reports for the same water depending on what the hand felt before, so touch alone is not reliable for measuring temperature.
- B The right hand is always more sensitive to heat than the left hand.
- C The tap water changed temperature between the two dips.
- D Warm water and cold water should not be tested with the same hands.
A. Our sense of touch gives different reports for the same water depending on what the hand felt before, so touch alone is not reliable for measuring temperature.
What each wrong option reveals
- B Selects this option: overgeneralises from one observation to a fixed anatomical claim, missing the point that the result depended on prior exposure, not on which hand was used.
- C Selects this option: misconception that the physical property of the water changed — confuses the student's sensory context with the water's actual temperature.
- D Selects this option: treats the experimental design as flawed rather than reading the contradiction as the intended finding — misses that the contradiction itself is the evidence.
Also saved as 7 periods or 9 periods or 11 periods.
- 2From Sensation to Scale — Introducing Temperature
Observe and question the limits of sensory perception - 3Reading Body Temperature — Clinical Thermometer in Practice
Identify and read instruments — clinical thermometer - 4Three Scales — Celsius, Fahrenheit, and Kelvin
Identify and read instruments — clinical thermometer - 5Exploring the Laboratory Thermometer's Range and Structure
Identify and read instruments — laboratory thermometer - 6Calculating the Smallest Division
Identify and read instruments — laboratory thermometer - 7Measuring Temperature of Warm Water — Technique and Precautions
Identify and read instruments — laboratory thermometer - 8Why Doesn't Water Boil at 100 °C Here?
Identify and read instruments — laboratory thermometer - 9Recording the Sky — Maximum and Minimum Air Temperature
Collect and analyse real temperature data — air temperature - 10Patterns in the Data — Analysing Ten Days of Air Temperature
Collect and analyse real temperature data — air temperature - 11Which Thermometer, Which Scale, and Why?
Explain and apply — connecting measurement choices to context and purpose - 12Precision, Limits, and Why Measurement Matters
Explain and apply — connecting measurement choices to context and purpose - 13The Cold Chain Problem — Keeping Vaccines Safe
Explain and apply — connecting measurement choices to context and purpose
- 1. The Wonderful World of Science
- 2. Diversity in the Living World
- 3. A Path to a Healthy Body
- 4. Exploring Magnets
- 5. Measurement of Length and Motion
- 6. Materials Around Us
- 7. Temperature and its Measurement
- 8. A Journey through States of Water
- 9. Methods of Separation in Everyday Life
- 10. Living Creatures: Exploring their Characteristics
- 11. Nature's Treasures
- 12. Beyond Earth
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