Shodor Education Foundation
Caesar Cipher
Caesar ciphers hide secret missives. A simple interactive lets users encode and decode hidden messages. The cipher method here is the Caesar shift.
Meadows Center for Preventing Educational Risk, University of Texas at Austin
Lesson 9 - Contractions
Is it do'nt or don't? How about doesn't or does'nt? A lesson on contractions helps learners identify, form, and use contractions. Components within the plan include direct instruction on decoding and encoding contractions, as well as...
Curated OER
Fundamental Algebraic Skills
In this fundamental algebraic skills worksheet, students solve 11 various problems that include various algebraic skills. First, they use the coded wheel to answer 2 questions about a message. Then, students substitute the given numbers...
Shodor Education Foundation
Shodor Interactivate: Caesar Cipher
Create your own affine cipher for encoding and decoding messages. Input your own constant and multiplier, then input a message to encode.
Other
Video Over the Internet
An in-depth document on video and the Internet. Including video & Internet-the problem, solutions & technologies in use, video encoding & decoding.
Other
Pc Guide: Compact Disk Media
This site from the PC Guide provides informative information about compact disk media, with links to construction and manufacture, data encoding and decoding, CD capacity, and formats.
PBS
Pbs Nova: Send a Coded Message Virtual Enigma
Explore the NOVA's Virtual Enigma machine used during WWII. You can send an encrypted message to a friend along with the special key needed to decipher the message. A link is also included to the Virtual Enigma.