You Can Say That Again! – Text Compression

This You Can Say That Again! – Text Compression lesson plan also includes:

Compression, the process computers use to store information, is the focus of a resource that presents two different stories that describe the concept of compression by eliminating repeated letters and replacing them with a pointer. The instructional activity concludes with an explanation of why compression is important for computer skills and coding.

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Instructional Ideas

  • Start the lesson by projecting a sentence that has blanks for repeating letters; ask the class to try to decode the sentence
  • Play a game of secret message in which one classmate creates a message using text compression and another has to decode it
  • Have the pupils use whiteout tape to mark out the letters on their worksheets
Classroom Considerations

  • The text lines in the passages to be compressed are close to each other and may be difficult to cover

  • Provides an easy-to-understand explanation of compression
  • Can be used for a variety of grade levels

  • Slightly dated material and explanations, such as reference to a wristwatch that would be able to store a lot of data
  • More complicated activities do not have an answer key