TeachEngineering
Teach Engineering: Rotary Encoders & Human Computer Interaction
Students learn about rotary encoders and discover how they operate through hands-on experimentation. Rotary encoders are applied in tools to determine angle measurements and for translations of angular motion. One common rotary encoder...
TeachEngineering
Teach Engineering: Ding! Going Up? Elevators and Engineering
Students create model elevator carriages and calibrate them, similar to the work of design and quality control engineers. Students use measurements from rotary encoders to recreate the task of calibrating elevators for a high-rise...
TeachEngineering
Teach Engineering: Smart Move!
This is a simple activity to visualize a communication system. In order to do this the students encode, decode, transmit, receive, and store messages. They will use a code sheet and flashlight for this process. They will also maintain a...
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.
Texas Instruments
Texas Instruments: Numb3 Rs: Coded Messages
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...
Texas Instruments
Texas Instruments: Numb3 Rs: Breaking the Code
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...
Other
National Engineers Week Foundation: Hearing the Light
Students learn how laser communication systems are built by observing how sound can be encoded into, and transmitted by a light beam.
National Council of Teachers of Mathematics
Nctm: Illuminations: Codes
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.
Texas Instruments
Texas Instruments: Numb3 Rs: How Hard Can It Be?
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...
Texas Instruments
Texas Instruments: Numb3 Rs: Creating Codes
Based off of the hit show NUMB3RS, this lesson focuses on getting students to create ciphering codes. These codes are made in two different ways in this lesson: once with addition and once with multiplication. Students in this lesson are...
Other
Beautiful Chemistry: Beautiful Structures: Dna Nanostructures
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.
Code.org
Code.org: Cs Fundamentals: Happy Maps
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...