Guess the Sentence

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In this activity, learners play a game similar to Hangman by guessing a secret phrase to understand how computer scientists measure the amount of "information" in a document. Some letters will be easy to guess, revealing the basis of compression techniques to reduce the amount of data used for sending or storing digital media. This activity includes step-by-step instructions with pictures, an explanation of the computer science behind the activity, and optional challenges.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
1 cent - $1 per group of students

Age Range:
Ages 6 - 14

Resource Types:
Activity, Game


Materials List (per group of students)

  • At least 2 people
  • A pen or pencil
  • Two or three pieces of paper


  • Engineering and Technology
    • Computing
      • Computer Science
      • Information Systems
      • Information Technology

Informal Categories

  • Computers
  • Games


Components that are part of this resource:

This resource is part of:

Access Rights:

  • Free access



Funding Sources:

  • Google
  • Microsoft