| Lesson Plan |
| Grade: |
Date: 25/02/2026 |
| Subject: Physics |
| Lesson Topic: Explain some of the basic everyday applications and consequences of conduction, convection and radiation, including: (a) heating objects such as kitchen pans (b) heating a room by convection |
Learning Objective/s:
- Describe the mechanisms of conduction, convection, and radiation.
- Explain how conduction heats a kitchen pan and why material properties matter.
- Analyze how convection currents distribute heat in a room and the factors that affect the rate.
- Apply the Stefan‑Boltzmann law to explain radiative heat loss from surfaces.
- Compare the three modes to select appropriate heat‑transfer strategies in everyday contexts.
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Materials Needed:
- Projector or interactive whiteboard
- Slides with diagrams of heat flow
- Sample metal pan (or images) with insulated handle
- Radiator model or video showing convection currents
- Worksheets with comparison table
- Thermometer/temperature sensor (optional for demo)
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Introduction:
Begin with a quick demonstration: hold a cold metal spoon and a wooden spoon next to a hot cup of water and ask which feels hotter and why. Recall prior learning about energy and temperature. Explain that by the end of the lesson students will identify real‑world examples of conduction, convection and radiation and justify the dominant mode.
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Lesson Structure:
- Do‑Now (5') – Students write three everyday heat‑transfer examples on a sticky note.
- Mini‑lecture (10') – Review definitions and key formulas for conduction, convection, radiation with slides.
- Demonstration 1 (8') – Heat a metal pan on a hot plate; discuss conduction, material conductivity, and insulated handles.
- Demonstration 2 (8') – Show a video of a radiator heating a room; map convection currents and discuss size, placement, and fans.
- Group activity (12') – Teams complete a comparison chart (medium, speed, controlling factor) on a worksheet; teacher circulates to address misconceptions.
- Quick check (5') – Exit ticket: write one example for each mode and why it dominates.
- Summary discussion (5') – Highlight how engineers use these principles in cookware, heating systems, and building insulation.
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Conclusion:
Recap the differences between conduction, convection, and radiation and their everyday relevance. Collect exit tickets as a retrieval check. For homework, assign a short report describing the heat‑transfer mode used in a household appliance of the student's choice.
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