Color by Numbers: Image Representation

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Computers store drawings, photographs, and other pictures using only numbers. Through this activity, learners decode numbers to create pictures using the same process that computers use. They can then create and code their own pictures for other learners to decode. This lesson includes three activities (1 introductory and 2 worksheet) and background information.

Quick Guide

Preparation Time:
5 to 10 minutes

Learning Time:
45 to 60 minutes

Estimated Materials Cost:
1 cent - $1 per student

Age Range:
Ages 8 - 14

Resource Types:
Activity, Lesson/Lesson Plan


Materials List (per student)

  • for group: Transparency copy from Master
  • copy of Worksheet Activity: Kid Fax p17
  • copy of Worksheet Activity: Make Your Own Picture p18
  • pencil
  • eraser


  • Engineering and Technology
    • Technology
      • Information and Communication
  • Mathematics

Informal Categories

  • Computers


To use this activity, learners need to:

  • see

Learning styles supported:

  • Involves teamwork and communication skills
  • Involves hands-on or lab activities


Components that are part of this resource:

This resource is part of:

Access Rights:

  • Free access



  • , ,

Funding Source:

  • Google, Inc.