Sound and Light Connections

Overview

Duration: 30 minutes
Class size: 8 students
Unit: Waves: Sound and Light (Lesson 7 of 7)
Age group: KS2 & KS3 (ages 9–13)
National Curriculum Links:

Physics: Waves (KS2 - Y5/6 and KS3 - Y7)
Working scientifically skills (observing, presenting, discussing)
Applications of science in everyday life

Learning Objectives (WALT)

WALT: Understand real-world technologies that use sound and light waves, such as sonar and fibre optics.
WALT: Explain how these technologies work and describe their uses.
WALT: Collaborate to research, organise information, and present scientific ideas clearly.

National Curriculum references:

KS2 Science:
- Understand how sounds are made and travel, and how light is reflected and carries information (Y5/6: Waves)
KS3 Science:
- Describe how waves transfer energy and information for communication purposes (Y7)
- Analyse technological applications of waves and their impacts

Success Criteria

Students will be able to:

Describe at least two technologies that use sound or light waves.
Explain the basic scientific principle behind sonar and fibre optics.
Present information clearly in small groups using simple diagrams or keywords.
Listen respectfully and contribute ideas during group presentations.

Resources

Dyslexia-friendly fact sheets about sonar and fibre optics (colour coded, simple font such as Comic Sans or Arial, with images)
Whiteboard and coloured pens
Printouts of diagrams for annotation
Tablets or printed research prompts (optional)
Presentation format templates (poster or digital)
Timer for group activities
Headphones and quiet zones for students needing sensory breaks

Lesson Plan

1. Introduction & Recap (5 minutes)

Briefly recap previous lessons on sound and light waves (Waves, properties, travel, reflection, refraction).
Using dyslexia-friendly cards, show key words: sound waves, light waves, frequency, reflection, transmission.
Ask students what examples of technology they remember that use sound or light waves (Quick mind map on whiteboard).

Differentiation: Use visual images for vocabulary for students with dyslexia or ADHD; allow short, oral answers as an alternative.

2. Group Research and Discussion (15 minutes)

Set up:

Divide students into 2 groups of 4.
Group 1: Sonar technology (sound waves)
Group 2: Fibre optic technology (light waves)

Task:

Using dyslexia-friendly fact sheets, students read simplified explanations of their technology.
Each student highlights or notes:
- What waves are used?
- How does the technology work?
- What is it used for?
Encourage drawing or annotating diagrams.
Teacher circulates to scaffold explanations as needed using questioning (e.g., “How do the waves help the device ‘see’ or ‘send’ information?”).

Differentiation & Support:

Provide sentence starters for students with ADHD or FASD (e.g., “Sonar uses sound waves to…”).
Allow sensory breaks or alternative seating for students with Autism or ODD.
Offer advanced learners additional challenge: research another technology (e.g., ultrasound or laser communication) and prepare a mini explanation.

3. Group Presentations (7 minutes)

Each group presents their technology to the other group in a 3-minute presentation, using diagrams or fact sheets.
Presentations should include: what waves are involved, basic principle, and real-world use.
After each presentation, allow one question from the listening group.

Differentiation:

Support shy or anxious students by allowing paired presentation or recording audio instead.
Use visual prompts and cue cards to help students stay on track.

4. Summary and Reflection (3 minutes)

Recap the links between sound/light waves and technology.
Highlight the impact of these technologies in everyday life and careers.
Ask students verbally or in writing (dyslexia-friendly format): “Why do you think understanding waves is important?”.

Assessment & Feedback

Formative assessment during group discussions and presentations based on use of vocabulary and accurate explanation.
Self and peer feedback using a simple checklist:
- Did we explain how the waves work?
- Did we talk about real-world uses?
- Did we listen to the other group?

Extension Activities (Optional)

Advanced learners research ultrasound scanning or laser communication and create posters for display.
Create a simple sonic navigation game or fibre optic communication simulation for hands-on understanding.

Notes on Inclusion and Differentiation

Provide all printed materials in dyslexia-friendly fonts and colour contrasts.
Instructions given both orally and visually; check understanding by asking students to repeat or explain back.
Provide quiet area or fidget tools for students with ADHD or Autism.
Use positive behaviour incentives and clear boundaries to support students with ODD.
Use short, clear chunks of information to aid concentration and processing.

By linking waves to practical, cutting-edge technologies, students develop meaningful understanding, while inclusion and varied presentation methods ensure all can access and engage confidently.