Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Coded Messages

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson uses matrices (inverse and multiplication) to decode messages hidden within digital pictures -- a process known as steganography. This method of hidden communication is known to...
Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Breaking the Code

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson introduced students to simple coding techniques (namely, the shift cipher). Students learn to translate codes from nonsense to English by quantifying each letter, and then...
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.
Article
Khan Academy

Khan Academy: Simple Image Compression

For Students 9th - 10th
Lossless single image compression by using the algorithm run-length encoding (RLE).
Handout
Wikimedia

Wikipedia: Ascii

For Students 9th - 10th
A thorough Wikipedia description of the computer character encoding scheme known as ASCII (American Standard Code for Information Interchange).
Handout
Wikimedia

Wikipedia: Unicode

For Students 9th - 10th
A complete Wikipedia description of the computer character encoding scheme known as Unicode.
Activity
Braingle

Braingle: Cryptography Brain Teasers

For Students 9th - 10th
Test your critical thinking skills with a variety of cryptography brain teasers, phrases or expressions "encoded in some way." Solve the teasers provided at this site, and submit your own for others to try!
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
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 compressed. You will also measure the quality of compressed and uncompressed images, which will give you important insights into the tradeoffs between file size...
Website
Smithsonian Institution

National Museum of the American Indian: Native Words: Code Talking

For Students 9th - 10th
Learn how members of many Native American tribes became a vital part of America's efforts during World War I and World War II, divising codes that were never broken by the enemy. Includes examples of encoded words.
Unit Plan
Texas Education Agency

Texas Gateway: Elements and Compounds

For Students 9th - 10th
In this fun and engaging online lesson, students differentiate between elements and compounds on the most basic level while having fun "encoding" the Periodic Table.
Interactive
National Council of Teachers of Mathematics

Nctm: Illuminations: Codes

For Students 9th - 10th
This is a computer based program that allows students to understand basic cryptography which utilizes transformations of shifting and stretching. Students may encode their own message and see it graphically.
Interactive
PBS

Pbs Nova: Send a Coded Message Virtual Enigma

For Students 9th - 10th
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.
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...
Graphic
Other

Video Over the Internet

For Students 9th - 10th
An in-depth document on video and the Internet. Including video & Internet-the problem, solutions & technologies in use, video encoding & decoding.
Website
Other

Webopedia: Tape

For Students 9th - 10th
Resource offers several paragraphs of information on tapes, which are magnetically coated strips of plastic on which data can be encoded.
Graphic
Other

Beautiful Chemistry: Beautiful Structures: Dna Nanostructures

For Students 9th - 10th
DNA is the molecule of life, as life's secrets are encoded in DNA. In this interactive activity. we see the famous double helix structure of DNA.
Unit Plan
TED Talks

Ted: Ted Ed: Secrets of the X Chromosome

For Students 9th - 10th
The sequence of DNA that we inherit from our parents encodes directions for making our cells and giving us specific traits. Robin Ball explains how the secret lies in X chromosome inactivation.
Unknown Type
Illustrative Mathematics

Illustrative Mathematics: 4.nf How Many Tenths and Hundredths?

For Teachers 3rd - 5th Standards
Finish the equations to make true statements. The student must really think to encode the quantity in positional notation. Aligns with 4.NF.C.5.
Unit Plan
CK-12 Foundation

Ck 12: Life Science: Reproductive Behavior of Animals

For Students 6th - 8th
[Free Registration/Login may be required to access all resource tools.] Some of the most important animal behaviors involve mating. Mating is the pairing of an adult male and female to produce young. Adults that are most successful at...
Lesson Plan
Code.org

Code.org: Cs Fundamentals: Happy Maps

For Teachers Pre-K - 1st
The bridge from algorithms to programming can be a short one if students understand the difference between planning out a sequence and encoding that sequence into the appropriate language. This activity will help students gain experience...
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...
Unit Plan
Other

Data Guru: The Communication Process

For Students 6th - 8th Standards
This communication tutorial focuses on online communication in which interpretation can lead to conflict.
Activity
Texas Instruments

Texas Instruments: Numb3 Rs: How Hard Can It Be?

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson introduces students to one way of defining the strength of an encryption (called "Entropy"). In the lesson, students learn how to calculate the entropy of a given code, and then...

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