Patterns in Pixels

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This activity (page 2) draws upon a familiar, computer-based concept related to visual resolution: pixilation. The sharpness of a digital image is determined by the density of illuminated points on a screen. The smaller the points, the more that can fit into one centimeter and the greater the clarity of an image. Learners evaluate photos of varying resolution to understand how increased data density helps to create clearer patterns. This activity is a introductory lesson for a health-themed program on human biochemistry, technology, and medicine. [Activity is publicly available through a web crawler capture on]

Quick Guide

Preparation Time:
5 to 10 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
free per group of students

Age Range:
Ages 11 - 14

Resource Types:
Activity, Lesson/Lesson Plan


Materials List (per group of students)

  • 5 stock image photos/transparencies ranging from a low quality image (few pixels per inch) to higher quality images (more pixels per inch)


  • Engineering and Technology
    • Computing
      • Computer Science
    • Engineering
      • Bioengineering/Biomedical Engineering
      • Computer Engineering
    • Technology
      • Medical Technology
  • Mathematics
    • Algebra
      • Patterns
    • Data Analysis and Probability
      • Data Analysis
    • Representation
  • The Nature of Technology
    • The Design Process
      • Problem Solving
  • The Nature of Science
    • The Scientific Process
      • Conducting Investigations
      • Gathering Data
      • Formulating Explanations
    • Science as a Career

Informal Categories

  • Computers


To use this activity, learners need to:

  • see

Learning styles supported:

  • Involves hands-on or lab activities


Components that are part of this resource:

Includes alignment to state and/or national standards:

Access Rights:

  • Free access



  • All rights reserved, Arizona Science Center, 2012

Funding Source:

  • Science Education Partnership Award, National Institutes of Health