Cryptography: Cracking the Code
Grade Levels: 6-8
In this lesson students will learn about cryptography, create their own cipher disks, and use them to solve secret messages in an attempt to thwart invading Martians! Extension activities allow students to research additional cipher methods and their uses. In this extension, students will create their own cipher and use this to encrypt plain text and allow others to decrypt the cipher text using the new method.Download Lesson PDF
Play this online game to learn more about cryptography, solve puzzles, and escape the maze! This game explores STEM concepts behind the book The Maze Runner by James Dashner.
Solve this Cryptography Challenge!
Create your own cipher disk and solve a secret message. Using your deciphered text, assemble the puzzle pieces on the graph paper. Print the puzzle pieces on transparency paper for best results. After you discover the answer to this challenge, visit the Check Your Answer page to determine if you’re right.
Design Your Own Cipher Disk
Send us your original cipher disk and design. We would love to showcase awesome designs on our site. Click the button below or email us at firstname.lastname@example.org
Online Tools for Cracking Code
The following websites and activities were created by Brian Veitch from Northern Illinois University’s Department of Mathematics.
This Introduction to Cryptography was created by Brian Veitch, a NIU cryptography expert, and contains guides, lessons, activities, and resources.