Lesson Plan

• Describe practical applications of radio waves and microwaves.
• Explain how wavelength and frequency determine suitable uses of each EM region.
• Compare the everyday uses of infrared, visible, UV, X‑ray and gamma‑ray technologies.
• Evaluate the advantages and limitations of EM applications in daily life.

• Projector and laptop with presentation slides
• Printed worksheet with EM‑spectrum table
• Region cards for group activity
• Sample RFID tag and reader
• UV lamp and demonstration images
• Video clip of a microwave oven in action
• Exit‑ticket slips

Ask students to imagine how a text message, a TV broadcast, and a medical scan all travel without wires. Review that they have already learned light is part of a broader electromagnetic spectrum. Explain that by the end of the lesson they will be able to match each region of the spectrum to its common real‑world uses.

1. Do‑now (5') – Quick quiz ordering EM regions by wavelength.
2. Mini‑lecture (10') – Overview of spectrum regions, wavelength/frequency ranges, and key applications (projector).
3. Group activity (15') – Each group receives a region card, researches its uses, and creates a poster.
4. Gallery walk & presentations (10') – Groups display posters; teacher checks understanding.
5. Demonstrations (10') – RFID reader demo, UV lamp illustration, and short video of a microwave oven.
6. Formative check (5') – Exit ticket: match three spectrum regions to two appropriate uses each.

Summarise how different wavelength ranges dictate the practical uses of each part of the electromagnetic spectrum. Collect exit tickets to gauge understanding and assign a worksheet where students choose one region to research in more depth for homework.