Code.org
Encoding Color Images
Color me green. The fourth lesson in a unit of 15 introduces the class to color images and how to encode color images using binary code and hexadecimal numbers — and they will quickly notice that it is easier to code the...
Code.org
Encoding B and W Images
Imagine drawing with zeros and ones. The third lesson in a unit of 15 introduces the class to creating black and white images. Pairs get together to create an encoding scheme in order to make these images. They move on to a...
International Technology Education Association
Pixel This!
Did the image I drew match the image you saw? By simulating a satellite and a ground station, teams of two transmit data in the form of pixels in order to recreate an image. They use four different levels of brightness, creating slightly...
Curated OER
Correcting Bad Data Using Parity Bits
In this parity bits worksheet, students read about pixels and data strings. Students are given 2 data strings that are corrupted by cosmic ray glitches and they identify the bad data and create a valid data string.