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Grade 3/Coding & Ciphers

Caesar Cipher

Decode short 3–4 letter words using a simple letter-shift cipher. A fun introduction to secret codes for Grades 2–3.
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⭐ Easy2
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📊 Medium2
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🔥 Hard2
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Quick Tip
To DECODE: find the coded letter in the Code row, then write the matching Plain letter. To ENCODE: find the plain letter in the Plain row, then write the matching Code letter.
Teacher Resources
Vocabulary
Cipher: A secret way to write messages.
Encode: To change a message into a secret code.
Decode: To change a secret code back into a normal message.
Differentiation
Extension Activities
  • Create a cipher key for a new code.
  • Write a secret message for a friend.
  • Decode a coded message from a classmate.
Parent Tip

Create your own secret code with your child and write a short message to each other.

Learning Path
Skill Level

beginner

Estimated Time

15 minutes

Skills Practiced
letter substitutionpattern recognitionfollowing instructions