Cryptography

Why People Hide Things

Discover Why People Hide Things as a core part of Cryptography. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

Secret Messages

Discover Secret Messages as a core part of Cryptography. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

Writing Backwards

Discover Writing Backwards as a core part of Cryptography. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

What Is A Secret

Discover What Is A Secret as a core part of Cryptography. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

Pigeon Messages Old

Discover Pigeon Messages Old as a core part of Cryptography. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

Invisible Ink Fun

Discover Invisible Ink Fun as a core part of Cryptography. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

Code Writing Fun

Discover Code Writing Fun as a core part of Cryptography. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.

Shift Letters One

Discover Shift Letters One as a core part of Cryptography. This lesson explains what it means, walks through a real example, introduces key terms, and includes three hands-on activities to help you understand and apply the idea.