Use tools and materials to design and build a device that uses light or sound to solve the problem of communicating over a distance

Standards Alignment

• 1-PS4-4 primary
  Use tools and materials to design and build a device that uses light or sound to solve the problem of communicating over a distance.*

Lesson Overview

In this Grade 1 science lesson, students will explore how light and sound can be used to communicate over a distance. They will use tools and materials to design and build simple devices that send messages using light or sound. Through hands-on activities, observations, and discussions, students will learn how vibrations create sound, how light can be used to send signals, and how these can solve communication problems. This lesson integrates scientific inquiry and engineering design aligned with NGSS and TEKS standards.

Learning Objectives

• Ask questions and define problems based on observations or information about light and sound communication.
• Use tools and materials to design and build a device that uses light or sound to communicate over a distance.
• Plan and conduct simple investigations to test how light or sound can be used to send messages.
• Collect and record observations and measurements as evidence during investigations.
• Develop and use models or prototypes to represent solutions to communication problems.
• Evaluate designs to determine if the device works as intended and communicate explanations and solutions with others.

Success Criteria

• Students can ask questions about how light and sound help communication.
• Students can use materials like flashlights, cups, strings, or drums to build a communication device.
• Students can observe and describe how their device sends messages over a distance.
• Students can record their observations using pictures or words.
• Students can explain how their device works and how it solves a communication problem.
• Students can listen to peers and discuss different designs respectfully.

Prerequisite Knowledge

Students should have basic understanding that sound is made by vibrations and that light helps us see objects. They should be familiar with using simple tools and materials safely during classroom activities.

Key Vocabulary

• vibrate
• sound
• light
• communication
• device
• signal
• design
• prototype
• investigation
• observation

Materials and Resources

• Flashlights
• Paper cups
• String
• Drums or containers to tap
• Mirrors or reflective materials
• Construction paper
• Markers or crayons
• Tape or glue
• Scissors
• Notebooks or recording sheets

Teacher Preparation

• Prepare sets of materials for building communication devices (e.g., paper cup telephones, flashlights, drums).
• Review safety procedures for using scissors, tape, and other tools.
• Prepare guiding questions to help students think about communication problems and solutions.
• Arrange classroom space for small group work and presentations.
• Prepare recording sheets or notebooks for students to document observations and designs.

Detailed Lesson Notes

Understanding Communication Using Light and Sound

Communication over a distance means sending messages from one place to another without being close together. Light and sound are two ways people can send messages. Sound travels as vibrations through the air, and light can be used to send signals by turning it on and off or reflecting it. Examples include using a flashlight to send signals or a paper cup and string telephone to send sound vibrations.

Vibrations and Sound

Sound is made when something vibrates. Vibrations are tiny movements back and forth that create sound waves. When you talk, your vocal cords vibrate. When you tap a drum, the drum skin vibrates and makes sound. Sound can travel through air and make other things vibrate, like a piece of paper near a speaker.

Light and Communication

Light helps us see objects when it shines on them. We can also use light to send messages by turning a light on and off in a pattern or reflecting light with mirrors. For example, flashing a flashlight in a dark room can send signals to someone far away. Light travels in straight lines and can be blocked or reflected by different materials.

Designing and Building Communication Devices

Students will use tools and materials to design and build simple devices that use light or sound to communicate. Examples include paper cup telephones (sound), flashlight signal devices (light), or drumbeat patterns (sound). The design process includes asking questions about the problem, planning the device, building it, testing it, and improving it based on observations.

Using Scientific and Engineering Practices

Students will ask questions about how to send messages using light or sound. They will plan and conduct investigations to test their devices, collect observations and measurements, and record data using pictures or words. They will develop models or prototypes and evaluate if their device works as intended. Communication and collaboration are important to share ideas and solutions.

Safety and Tool Use

Students will learn to use tools safely, such as scissors, tape, and flashlights. They will be reminded to handle materials carefully and follow classroom safety rules during investigations and building activities.

Worked Examples

Classroom Activity

Experiment with making sounds and light signals. Try sending simple messages like tapping a rhythm or flashing a light on and off.

Guided Practice

Independent Practice

1. Foundational: What makes sound that we can hear?
2. Developing: Name two materials you can use to build a device that sends messages using sound or light.
3. Application: How does a paper cup telephone send sound from one person to another?
4. Analysis: If your flashlight signal is not clear to your partner, what are two things you could change to improve your message?
5. Challenge: Design a simple device using light or sound to send a message over a distance. Describe how it works and why it solves the communication problem.

Independent Practice Teacher Answer Key

1. 1. Sound is made by vibrations, which are tiny movements that create sound waves.
2. 2. You can use paper cups and string to send sound messages or a flashlight to send light signals.
3. 3. When one person talks into the cup, the bottom vibrates and sends vibrations along the string to the other cup, which vibrates and recreates the sound for the listener.
4. 4. You could make the light flashes slower or more distinct, or make sure the flashlight is pointed directly at your partner so they can see the signals better.
5. 5. A student might design a drum that sends messages by tapping rhythms (sound) or a mirror that reflects sunlight in patterns (light). It works because the drum vibrations or light reflections carry signals that someone else can detect and understand, allowing communication over a distance.

Guiding Questions

• How can light or sound help us send messages?
• What tools and materials can we use to build a communication device?
• How do vibrations make sound?
• How can turning light on and off send a message?
• What makes your device work well?
• How can you improve your design?

Common Misconceptions

• Sound can travel without vibrations; in reality, sound is always caused by vibrations.
• Light can be seen in the dark without a light source; objects are only visible when light shines on them or they produce light.
• Communication devices always need electricity; simple devices can use natural properties of light and sound to send messages.
• Vibrations can travel through empty space; sound needs a medium like air or string to travel.

Differentiation

Assessment

• Observe students during exploration and building to check understanding of vibrations and light signals.
• Ask students to explain how their device sends messages.
• Review students' recorded observations and drawings for evidence of learning.
• Draw your communication device and write one sentence about how it sends a message.
• Name one way sound or light can be used to communicate over a distance.
• Create a poster showing different devices that use light or sound to communicate and explain how each works.
• Write a short story about a time you used a light or sound device to send a message.

Answer Guide

• What causes sound in a paper cup telephone?
  Answer: Vibrations caused by talking into the cup travel along the string and make the other cup vibrate, producing sound.
• How can light be used to send messages?
  Answer: By turning a light on and off in patterns or reflecting light, messages can be sent as signals over a distance.

Real-Life Application

Encourage students to try making a paper cup telephone at home with family members and explain how it works.

Homework or Home Connection

• Encourage students to try making a paper cup telephone at home with family members and explain how it works.

Lesson Summary

Students learned that sound is made by vibrations and light can be used to send signals. They used tools and materials to design and build simple devices that communicate over a distance using light or sound. Through investigation, observation, and design, students developed models and explained how their devices solve communication problems.

Teacher Notes

Use the exact standards alignment and retrieved-source provenance stored with this enrichment.

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