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...
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.
National Council of Teachers of Mathematics
Nctm: Illuminations: Name Letters
Crack the code and can determine the cost of your name. Use this activity to practice solving systems of equations.
Science Struck
Science Struck: How to Convert Octal to Decimal
Explains what the four different types of number systems are and what they are used for. Presents the formula used to convert octal numbers into decimals and models how to apply it in two example problems.
Ducksters
Ducksters: Kids Math: Binary Numbers
Do you know how zeros and ones are used in this base-2 number system? Find all about binary numbers on this site. Site contains example problems.