Varsity Tutors
Varsity Tutors: Hotmath: Algebra Review: Binary Numbers
Find a quick, concise explanation of Binary Numbers. A table lists the first thirty-two binary (base two) numbers with their base ten equivalents.
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.
History of Computing Science
History of Computing Science: Binary Representation
The binary number system is a perfect fit for the dual-state technologies used in digital computing devices. This lecture series presents a brief description of how the two fit together.
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.
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...
NASA
Nasa: Imagine the Universe: Supernovae (Advanced)
Supernovae are divided into two basic physical types, including a description of supernova types and how they are classified based on the existence of hydrogen spectral lines. Definitions of key terms are provided.
Wolfram Research
Wolfram Math World: World's Most Extensive Mathematics Resource
MathWorld provides a huge mathematics encyclopedia detailing the concepts of geometry, algebra, calculus, discrete math, number theory, and other math topics--complete with formulas, diagrams, examples, and references for thorough...
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.
Math2
Math2.org: Number Notation
At this website from Math2.org you will find tables with information about number words, meanings, and the symbols used to express them. At the very bottom there is also a Java Base Conversion Calculator.
National Council of Teachers of Mathematics
Nctm: Figure This: Bar Codes
An exploration of the binary system using U.S. postal zip codes. Discover what numbers the long and short bars in a zip code represent in this one page activity from the NCTM Math Challenges for Families collection.
History of Computing Science
History of Computing Science: Edvac
EDVAC (Electronic Discrete Variable Automatic Computer) was an early computer that was one of the first to use the binary number system to represent information. This lecture is a brief presentation of the EDVAC.
Georgia State University
Georgia State University: Hyper Physics: Circular Orbit
The necessity of gravitation to a circular orbit is discussed and equations for the orbital speed are derived from the law of universal gravitation. Binary systems in which two objects orbit about a center of mass are explained and...
Cornell University
Cornell University: Astronomy: Orbital Motion and Kepler's Laws
At this site from the Astronomy Department of Cornell University, Kepler's three laws of planetary motion are stated. There are brief explanations of each, along with links to additional information on related subjects.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: Juego Del Salto De La Rana
In Spanish. This site has two educational games with step by step instructions. It also has a biography of different computers pioneers and an explanation of the decimal and binary system.
Curated OER
Cornell University: Orbital Motion and Kepler's Laws
At this site from Cornell University, Kepler's three laws of planetary motion are stated. There are brief explanations of each. The laws are applied to explain the features of planetary orbits as well as the motion of binary star...