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Graphics: Bits and Points

Lesson Focus 
Computer graphics dominates young people’s lives. Their worldview is heavily influenced by pixels. This lesson uses age appropriate experiences to explain the difference between bitmap (raster) and vector graphics. The lesson covers how information is lost when it is digitized, and how computer graphics techniques can both enhance images, and provide vehicles for corrupting them. It also introduces some ideas on how to efficiently schedule a task.

Age Levels:

8 - 11
Objectives 

Introduce students to:

  • The difference between bitmap and vector graphics.
  • How scale influences the detail you see in an image.
  • How the graphics coordinate system differs from the Cartesian.
  • How scheduling a task makes it efficient.
Anticipated Learner Outcomes 

Students will demonstrate/explain how:

  • Images are represented as pixels, or points in a bitmap.
  • How vector graphics are increasingly being used to maintain detail integrity. 
Lesson Activities 

Computer graphics dominates young people’s lives. Their worldview is heavily influenced by pixels. This lesson uses age appropriate experiences to explain the difference between bitmap (raster) and vector graphics. The lesson covers how information is lost when it is digitized, and how computer graphics techniques can both enhance images, and provide vehicles for corrupting them. It also introduces some ideas on how to efficiently schedule a task.

Alignment to Curriculum Frameworks

Curriculum alignment sheet is included in PDF.

Categories 

Alignment to Curriculum Frameworks
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