Learning Resource Type

Classroom Resource

Code to Picture

Subject Area

Science

Grade(s)

4

Overview

Visualize the relationship between the binary code of 1s and 0s and an image with this interactive tool. Students can investigate relationships by testing how a code is used to create an image pixel by pixel and how the quality of a picture (its resolution) can be improved. A student assignment includes a brief reading to provide context on the code and an opportunity to test out a code with a partner.

    Science (2015) Grade(s): 4

    SC15.4.7

    Develop and use models to show multiple solutions in which patterns are used to transfer information (e.g., using a grid of 1s and 0s representing black and white to send information about a picture, using drums to send coded information through sound waves, using Morse code to send a message).*

    Unpacked Content

    UP:SC15.4.7

    Vocabulary

    • transmit
    • transfer
    • decoded
    • accuracy
    • digitized
    • convert
    • coded
    • signals

    Knowledge

    Students know:
    • About digitized information transfer. (e.g., information can be converted from a sound wave into digital signals such as patterns of 1s and 0s and vice versa; visual or verbal messages can be encoded in patterns of flashes of light to be decoded by someone else across the room).
    • Ways that high-tech devices convert and transmit information. (e.g., cell phones convert sound waves into digital signals, so they can be transmitted long distances, and then converted back into sound waves; a picture or message can be encoded using light signals to transmit the information over a long distance).
    • Information can be transmitted over long distances without significant degradation. High tech devices, such as computers or cell phones, can receive and decode information - convert form to voice - and vice versa.

    Skills

    Students are able to:
    • Generate multiple design solutions that use patterns to transmit a given piece of information.
    • Apply the engineering design process to develop a model to show multiple solutions to transfer information.
    • Describe the given criteria for the design solutions.
    • Describe the given constraints of the design solutions, including the distance over which information is transmitted, safety considerations, and materials available.

    Understanding

    Students understand that:
    • Similarities and differences in the types of patterns used in the solutions to determine whether some ways of transmitting information are more effective than others and addressing the problem.

    Scientific and Engineering Practices

    Developing and Using Models

    Crosscutting Concepts

    Patterns
    Link to Resource

    CR Resource Type

    Interactive/Game

    Resource Provider

    PBS
    Accessibility
    License

    License Type

    Custom
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