Interactive
Shodor Education Foundation

Shodor Interactivate: Caesar Cipher

For Students 9th - 10th
Create your own affine cipher for encoding and decoding messages. Input your own constant and multiplier, then input a message to encode.
Lesson Plan
Other

National Engineers Week Foundation: Hearing the Light

For Teachers 9th - 10th
Students learn how laser communication systems are built by observing how sound can be encoded into, and transmitted by a light beam.
Website
Science Buddies

Science Buddies: Image Compression vs. Image Quality: Finding the Best Tradeoff

For Students 6th - 8th
In this project you'll learn about how digital image files are encoded, and how digital images can be compressed so that the files take up less storage space and can be transmitted more quickly. You will also measure the quality of...
Website
Scientific American

Scientific American: What's a Dvd and How Does It Work?

For Students 9th - 10th
This "Ask the Expert" article answers the question "What's a DVD and how does it work?" clearly and thoroughly. Compares the DVD to other data storage units, and to itself! Did you know there are more types of DVDs other than what you...
Article
Mind Tools

Introducation to Communication Skills

For Students 9th - 10th Standards
This article reveals the purpose of communication: to get your message across to others. This may seem elementary, but the process that involves both the sender of the message and the receiver is complex and can lead to confusion and...
Handout
Other

Pc Guide: Recordable Cd (Cd R)

For Students 9th - 10th
This site from the PC Guide provides information about CD-R media, including a link to encoding. The information that is provided is brief but factual, and worth checking out on the subject with links to additional information.

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