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Physical Science · Waves & Information

Codes & Information Transfer: Patterns That Send Messages

Design, test, and compare pattern-based codes that use light, sound, cards, or two-symbol sequences to transfer information accurately across a distance.

Lesson plan

Codes & Information Transfer: Patterns That Send Messages

A step-by-step guide to help you teach this lesson.

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Lesson overview

What students will learn

  • Explain how a shared pattern code allows a sender to transfer information to a receiver.
  • Generate two different pattern-based code systems for the same set of messages.

Key science ideas

  • A signal can use light, sound, symbols, or positions.
  • Different patterns can represent different messages.
  • A sender encodes information and a receiver decodes it using a shared code key.

Lesson at a glance

  • Grade 4
  • 50 min
  • ~10 min prep
  • 4-PS4-3
  • 5 materials

What’s included

  • Lesson Plan
  • Investigation
  • Teacher Slides
  • Printable Worksheet
  • Teacher Answer Key
  • Interactive Activity
  • Vocabulary