Day 20 – Christmas Code Crackers

Why not try some computing science with your learners? Here is an example lesson plan of a lesson around the importance of encryption and codes. Christmas Cyphers

The activity can also be found below:

 

Christmas-Themed Code Cracking Activity

Instructions: Decode the following Christmas message using the substitution cipher where each letter is shifted by 3 places (A becomes D, B becomes E, etc.).

Encoded Messages:

• KHOOR, VDQWD LV FRPLQJ WR WRZQ!
• MLQJOH YHOOV
• UXGROSK
• HOI
• VOHLJK

Hint: Use the tips below to help you decode the message:

A -> D

B -> E

C -> F

X -> A

Y -> B

Z -> C

 

Now create your own Christmas themed Ciphers for your friends.