Caesar Cipher Algorithms | micro:bit
In this ‘unplugged’ lesson students create their own Caesar cipher, firstly using cards before writing, testing and debugging algorithms to create a Caesar cipher to encrypt and decrypt messages.
Learning objectives
Recapping cryptography (5 minutes)
Creating card Caesar ciphers (20 minutes)
Caesar cipher algorithms: encryption (15 minutes)
Caesar cipher algorithms: decryption (10 minutes)
Review & wrap up (10 minutes)
Support
Stretch & challenge
Opportunities for assessment
Classroom slides
Lesson plan
Caesar cipher worksheet
Ciphers and Text-based Programming
Lesson license