Lesson Plan

• Describe common uses of permanent magnets and electromagnets.
• Explain how magnetic fields are generated and controlled in each type.
• Compare advantages and limitations to select the appropriate magnet for a given application.
• Identify safety precautions when working with strong electromagnets.

• Projector or interactive whiteboard
• Slide handout showing diagrams of permanent and electromagnets
• Bar magnet, iron filings, compass
• Insulated copper wire, large nail, AA battery (to build a simple electromagnet)
• Worksheet with comparison table
• Safety goggles

Begin with a quick brainstorm of everyday objects that rely on magnetism to capture students' interest. Connect this to prior learning about magnetic poles and fields. State that by the end of the lesson they will be able to describe where permanent magnets and electromagnets are used and why.

1. Do‑now (5'): List as many magnet‑based devices as possible on the board.
2. Mini‑lecture (10'): Explain permanent magnets, domain alignment, and give real‑world examples.
3. Demonstration (8'): Show a bar magnet with a compass, fridge door seal, and a speaker coil.
4. Hands‑on activity (12'): Students construct a simple electromagnet (wire‑wound nail + battery) and observe its effect.
5. Worksheet activity (10'): Groups complete a comparison table of uses, power needs, and field control.
6. Class discussion (8'): Highlight key differences, advantages, and safety issues.
7. Exit ticket (5'): Write one scenario where an electromagnet is preferred over a permanent magnet.

Recap the main points about when each type of magnet is appropriate and remind students of the safety rule for electromagnets. Collect exit tickets and assign a homework task to research a modern technology that uses an electromagnet and write a short paragraph explaining its function.