Agnes Scott College
Agnes Scott College: Biographies of Women Mathematicians: Sophie Germain
Article highlights the accomplishments of Sophie Germain, a French mathematician who contributed to the study of acoustics, elasticity, mathematical physics, and the theory of numbers.
Wolfram Research
Wolfram Math World: Euclid's Theorems
This site from MathWorld.com provides a description of the theorems of Euclid and his theories of prime and composite numbers.
University of St. Andrews (UK)
University of St. Andrews: Johann Peter Gustav Lejeune Dirichlet
A biography of Dirichlet's personal life and on his mathematical findings, mainly in calculus and number theory.
The History Cat
The History Cat: Islamic Science and Math
Describes the major accomplishments of Islamic civilizations in the fields of Science and Math, i.e., the Islamic calendar, astronomy calculations, windmills, irrigation with gears, and mathematical theories.
University of Toronto (Canada)
How Can One Show That Imaginary Numbers Really Do Exist?
Contains a brief summary about the theory of imaginary numbers.
University of St. Andrews (UK)
University of St. Andrews: Julius Wihelm Richard Dedekind
This University of St. Andrews site provides biographical information and accomplishments of Dedekind.
National Council of Teachers of Mathematics
The Math Forum: Projection: Theory
Describes how to use dot products to project one vector onto another.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Rational and Irrational Number
Math Forum response to the size of the set of rational numbers. Responses investigate the countability of sets and basic set theory.
National Council of Teachers of Mathematics
The Math Forum: Ask Dr. Math: Rational Numbers
Math Forum response addressing how many elements are in the set of rational numbers. Responses investigate the countability of sets, and how sets with an infinite number of elements can be counted and compared to other "infinite sets."
University of St. Andrews (UK)
University of St. Andrews: George Polya
This University of St. Andrews site offers a biography of George Polya. Many links are provided.
Learning Wave Communications
Learning Wave: Commutative and Associative Properties of Multiplication
This resource provides information about the commutative and associative properties of multiplication.
Tour Egypt
Tour Egypt: The Ancient Egyptian Number System
This Tour Egypt site presents an easy-to-read account of ancient Egypt mathematics. Content explores the history and development of mathematics, how it was used, what helpful documents we have found that give us insight into what the...
Oswego City School District
Regents Exam Prep Center: Algebra: Practice Tests
Choose from three different practice exams that cover all Integrated Algebra topics reviewed in the Regents Exam Prep Center website: number theory, operation, variables, expressions, equations, inequalities, patterns, functions,...
University of St. Andrews (UK)
University of St. Andrews: Waclaw Sierpinski
This site, which is provided for by the University of St. Andrews, gives information on the life and accomplishments of mathematician Sierpinski.
University of St. Andrews (UK)
University of St. Andrews: Leonhard Euler
This site, which is provided for by the University of St Andrews, gives a factual description of Leonhard Euler's life and accomplishments.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Minkowski Diagram Model
Simulation examining simultaneity and causality in special relativity by manipulating the space and time coordinates of one or two events.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Special Relativity on Rotated Graph Paper Model
A representation of Minkowski spacetime diagrams using graph paper that is rotated, showing the world lines of three stationary observers with light clocks.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Lorenz Attractor Periodic Orbits
Simulation of a Lorenz attractor which is shaped like a butterfly. Manipulate the image and observe from all sides as the orbits about two fixed points are drawn.
Amby Duncan-Carr
Prime Factorization: Amby's Resources
What is prime factorization? This site goes through a step-by step process explaining different ways to find the prime factorization.
Texas Instruments
Texas Instruments: Numb3 Rs: It's All Connected
Based off of the hit television show NUMB3RS, this lesson uses students' knowledge of graph theory (networks) to introduce two measures of centrality (how connected a particular node is to the entire network), known as degree centrality...
University of St. Andrews (UK)
University of St. Andrews: David Hilbert
This site, which is provided for by the University of St. Andrews, contains biographical information on the mathematician David Hilbert.
University of Cambridge
University of Cambridge: Nrich: Elf Suits
Reasoning will help you figure out the various combinations of elf suits at this one page website. Check your solution against the solution given and see if they agree with you!
Other
Finite Geometry Notes: Diamond 16 Symmetry Puzzle
At this site see if you can solve the "Diamond 16" puzzle. Change the patterns to create ordinary or color exchange symmetry. This is just one of several challenging puzzles at this site. Links to similar puzzles and games.
Wikimedia
Wikipedia: Additive Inverse
What is additive inverse? It means "opposite." Find out more about this concept in this detailed definition with examples and links to related terms.