Lesson Procedure:
- Introduction (10 minutes)
- Briefly discuss the problem: ferrous metal debris on roadways
causing flat tires and posing risks to road crews and motorists.
- Introduce permanent magnets and their properties.
- Group Discussion (5 minutes)
- Students discuss traditional methods of debris removal and
associated risks.
- Highlight the challenge: designing a safer, magnet-based solution.
- Exploration and Experimentation (10 minutes)
- Students experiment with magnets and various materials to understand
magnetic attraction.
- Demonstrate how magnets attract ferrous metals.
- Design Phase (15 minutes)
- Students work in groups to design a prototype device using the
provided materials.
- Encourage creativity and practicality in their designs.
- Prototype Building (5 minutes)
- Students start constructing their prototype.
- Presentation and Feedback (5 minutes)
- Groups briefly present their prototype and explain how it works.
- Class discusses the pros and cons of each design.