Picture this: a fun activity for pupils to discover pixels. After learning about digital signals and pixels, scholars act as senders and receivers of an image. The sender indicates zero or one to tell whether each square in a grid is filled or unfilled, and the receiver uses this information to draw and record the image.

Concepts

digital signals, pixels, satellite images, transmission, binary code

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Instructional Ideas

• Invite a computer scientist or graphic artist to talk about how they apply pixels in their jobs
• Have learners investigate RGB color codes for individual pixels
  

Classroom Considerations

• Resource suggests having computers available to see the actual pixels on digital images
  

Pros

• Gives detailed instructions for the lesson
• Includes printable teacher reference
  

Cons

• Does not provide student worksheets or handouts