Free PowerPoint Presentations about Codes, Ciphers and Secret Messages for Kids & Teachers (K-12)

Free Presentations in PowerPoint format

Secure Computation

Good Guys and Bad Guys - Crypto

Invisible Ink and more

Codes, Ciphers, Secret Messages

Codes, Ciphers, and Secret Messages

See Also: Ham Radio

For Kids

Codes, Ciphers, & Secret Messages Games

Easy Way to Make Secret Codes for Kids

Send a Secret Language

Secret Codes for Cubs and Scouts

Decoding Nazi Secrets

The Secret Language

Can you solve a cryptogram?

For Teachers

Codes and Ciphers (includes overheads)

How to make invisible ink