Girl holding cipher

In a CryptoClub...

Kids use mathematics
to make and break secret codes.

Because of the mathematical nature of the subject and the natural interest surrounding secret messages, cryptography is an exciting hook for learning and applying mathematics.

Three boys Two girls

Treasure Hunts Encrypting & Decrypting

Secret Messages Games & Puzzles

What is in the CryptoClub Program?



The CryptoClub materials teach cryptography as an application of mathematics topics from the middle-grade curriculum.

Read about the Mathematics in CryptoClub.


Interactive Website is a website where students can learn and apply cryptography. It includes many tools for encrypting and decrypting, messages to crack, games to enjoy, comics to read, and more. There are also tools for teachers to create activities for their students.