Vigenere Cipher—Code Crackers

This Vigenere Cipher—Code Crackers lesson plan also includes:

Make a code more difficult to crack. The second lesson in a series of two about code crackers introduces the Vigenere Cipher. Pupils use a keyword and a Vigenere grid to code a message. Using an inverse method, learners are able to decode a message too.

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CCSS: Designed
Additional Tags

Instructional Ideas

  • Use as an introduction to inverse functions
  • Research the German enigma machine and find out the total number of encryption combinations
Classroom Considerations

  • The class should be familiar with a Caesar Cipher
Pros

  • Includes assessment suggestions
  • Contains possible responses to discussion questions
Cons

  • None
Common Core

MP2