Curated OER
Digital Codes
For this Algebra II/Pre-Calculus worksheet, students convert numbers into binary, octal, and hexadecimal code and examine different uses for writing numbers in other bases. The four page worksheet contains twelve multi-part...
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...
Curated OER
Digital Codes
In this electrical circuit learning exercise, learners answer a series of 12 open-ended questions about various types of digital codes. This learning exercise is printable and the answers are revealed online.
TryEngineering
Data Representation: Millions of Colors
How many colors do you know? The lesson teaches scholars how digital devices use binary and hexadecimal representations to store colors. They learn how millions of colors are available on these devices.
Code.org
Number Systems
Generating a system of shapes. Groups work together to create a number system using three different shapes as symbols. The groups should come up with the rules that generate all the possible permutations of the three shapes.
Curated OER
Colorful and Textured Backgrounds
Students create a solid color background for a web page. They calculate the hexadecimal code for a color value. They change the color of text and hypertext link items. They create a textured background from a graphic file.
Khan Academy
Khan Academy: Hexadecimal Numbers
Practice converting hexadecimal numbers to binary and decimal numbers, in this set of practice questions designed for AP Computer Science Principles students.
Math Is Fun
Math Is Fun: Hexadecimal Drum Machine
Create rhythms on this 4-instrument hexadecimal drum machine and see what your rhythms look like in the binary, decimal, and hexadecimal number systems.
Purple Math
Purplemath: Number Bases: Introduction & Binary Numbers
The process of converting between different number bases is actually fairly simple, but the thinking behind it can seem a bit confusing at first. And while the topic of different bases may seem somewhat pointless to you, the rise of...
University of Illinois
University of Illinois: Mste: The Binary Calculator Applet
The binary number system is used to represent data in digital form. This site provides a binary calculator that will convert between binary, octal, decimal and hexadecimal, perform simple addition and subtraction, and do compliment and...
Math Is Fun
Math Is Fun: Binary Digits
Learn about the two binary digits, 0 and 1, and how they are combined to make numbers that correspond to our standard number system. Looks also at the relationship between binary and hexadecimal digits.