Redwood High School Site Index

Mathematician biographies
Conic sections
Four-color theorem
Teaching units

Yahoo! Mathematics -
Yahoo's links to mathematics Web sites giving access to huge number of resources on the Internet. Includes the following subcategories: Academic Papers; Algebra; Applied Mathematics; Ask an Expert; Books; Calculus; Chaos; Combinatorics; Complex Systems; Conferences; Education; Employment; Entropy; Ethnomathematics; Fields Medal; Formal Logic; Fractals; Geometry; History; Humor; Journals; Libraries; Linear Algebra; Mathematical Biology; Mathematicians; Modelling; Number Theory; Numerical Analysis; Operations Research; Organizations; Pre-Algebra; Problems, Puzzles, and Games; Research; Security and Encryption; Set Theory; Software; Statistics; Tools; Wavelets; Web Directories; and Usenet. - Mathematics -'s links to mathematics Web sites giving access to huge number of resources on the Internet. Includes the following subjects: Abstract Algebra; Actuarial Math; Algebra; Applied Math; Calculus; Combinatorics; Discrete Math; Geometry; History; How To; Logic; Math Careers; Math Education; Mathematicians; Number Theory; Pre-Algebra; Probability; Analysis; Research Resources; Statistics; Topology; and Tutorials.
Measure 4 Measure: Sites That Do the Work For You -
Collection of links to web sites that calculate a very large variety of things. Sections include: Science/Math, Health, Finance, and Everything Else.
This is MEGA Mathematics! -
A project of the lab where the atomic bomb was developed. The MegaMath project is intended to bring unusual and important mathematical ideas to elementary school classrooms so that young people and their teachers can think about them together. (Los Alamos National Laboratory)
The Geometry Center -
Look here for lots of good geometry information. Part of the Center is the Gallery of Interactive Geometry <apps/gallery.html> where you can use your knowledge of geometry to create interesting, artistic images and shapes. Although the Center is no longer maintained links to parts of it are still operational. (U. of Minn.)
The MacTutor History of Mathematics Archive -
This site has information on the entire history of mathematics. Main indexes include: Biographies; History Topics; Famous Curves; and Mathematicians of the Day. The site also has other indexes and a chronology of important dates in mathematics. (School of Mathematics and Statistics, University of St Andrews, Scotland)
Abstract Algebra Online -
"This site contains many of the definitions and theorems from the area of mathematics generally called abstract algebra. It is based on the following books: Abstract Algebra, by John A. Beachy and William D. Blair, and Abstract Algebra II, by John A. Beachy."
Math Art Gallery -
See how art can flow out of mathematics. (Catholic University Nijmegen, Netherlands)
The Math Forum@Drexel -
A gathering place for links to Internet information and materials about mathematics. Forum Features include: Search for Math or browse our Internet Mathematics Library; Ask Dr. Math; Discussion Groups; Forum Showcase; Internet Newsletter; Problems of the Week; Teacher2Teacher; and Web Units & Lessons. (Drexell University) -
Formerly called Dave's Math Tables, this Web site includes links for general math, algebra, geometry, trigonometry, odds and ends, statistics, calculus, and advanced topics. In English or Spanish. (David Manura, Scientific Instrument Services)
Mathematics -
From the "Rome Reborn" exhibit of the Vatican Library. Documents the effect these ancient texts had on Renaissance culture. Includes facsimiles of documents such as Euclid's Elements, Archimedes' Works, Appolonius' Conics , etc. (Library of Congress)
The Fractory -
"This page will help you learn about fractals: what they are and how to design them, but it will also let you discover more on your own. Fractals are just now emerging as a science. They show an order in seemingly random things, and give us tools with which we can predict the weather, render natural looking objects, and help understand the order in our chaotic lives. You will also play a part in our interactive fractal creation center, designing and  displaying fractals you have invented."
University of Minnesota Calculus Initiative -
"The Geometry Center is assisting in the development of interactive technology-based modules for the engineering calculus sequence. These modules emphasize geometric concepts of calculus while examining applications of mathematics to the physical and life sciences." Specific projects include the "Rainbow Lab;" "Numerical Integration Lab;" "Beams, Bending, and Boundary Conditions Lab;" and "Modeling Population Growth."
VassarStats -
"Welcome to the VassarStats web site, which I hope you will find to be a useful and user-friendly tool for performing basic statistical computation. Each of the links" ... (Probabilities; Distributions; Frequency data; Proportions; Ordinal data; Correlation & regression; t-Tests & procedures; ANOVA; ANCOVA; and Miscellanea) "will show an annotated list of the statistical procedures available under that rubric. Some of these procedures will be launched in a new browser window. In this case, simply close the new window to return to the main page."
Geometry in Action -
"This page collects various areas in which ideas from discrete and computational geometry (meaning mainly low-dimensional Euclidean geometry) meet some real world applications. It contains brief descriptions of those applications and the geometric questions arising from them, as well as pointers to web pages on the applications themselves and on their geometric connections. This is largely organized by application but some major general techniques are also listed as topics.
Geometry.Net -
A website all about geometry. Links are provided for such topics as: Basic Math: Geometry, Algebra, Calculus...; Biographers [sic]: Euclid, Boole, Goedel...; Pure and Applied Math: Logic, Topology, Category...; Physics: Atomic Physics, Electronics...; Computer & Internet: C++, Java, HTML...; Biology: Genetics, Biochemistry...; Technology: Architecture, Biotechnology...; and Sports: Basketball, Baseball, Football... Other links are given for Categorical Geometry; Site Map links; Math Help Desk; Calculus Learning; Famous Theorems; Math Discover; Test Prep Central; Computer_Certification; New Math Books; and Mathematicians.
PlanetMath -
"PlanetMath is a virtual community which aims to help make mathematical knowledge more accessible. PlanetMath's content is created collaboratively: the main feature is the mathematics encyclopedia with entries written and reviewed by members."


Mathematicians of the 17th and 18th Centuries -
Mathematicians of the seventeenth and first half of the eighteenth century, adapted from A Short Account of the History of Mathematics by W. W. Rouse Ball (4th ed., 1908). These biographies constitute part of the collection of online material relating to the history of mathematics. (School of Mathematics, Trinity College, Dublin)
Biographies of Women Mathematicians -
These pages are part of an on-going project by mathematics students to illustrate the numerous achievements of women in the field of mathematics. (Agnes Scott College, Atlanta, GA)
MacTutor History of Mathematics Archive -
This archive contains the biographies of more than 1000 mathematicians. About 200 of these biographies are fairly detailed and most are accompanied by pictures of the mathematicians themselves. (School of Mathematics and Statistics, Univ. of St. Andrews, Scotland)
Mathographies -
Bibliographies of mathematicians, provided by a community math faculty. Includes approximately 30 biographies in a time period from ancient to modern. (Bellevue Community College)
Mathematician Biography Index -
Features brief biographies for most important mathematicians in history.
Mathematicians (Google Directory) -
Annotated links to sites about mathematicians. Several mathematicians, including Archimedes, Benjamin Banneker,  Rene Descartes, Albert Einstein, Euclid, Hypatia, Isaac Newton, Blaise Pascal, and Pythagoras, have several sites dedicated to them.

Four-color Theorem

Four Color Theorem -
Short explanation of the famous theorem about the number of colors it takes to show distinct areas on a map.
The Four Color Theorem -
"This page gives a brief summary of a new proof of the Four Color Theorem and a four-coloring algorithm found by Neil Robertson, Daniel P. Sanders , Paul Seymour and Robin Thomas." (Georgia Tech)
The Four Colour Theorem -
This page gives a history of the theorem with links to other sites about the problem, including the one listed just above. (MacTutor History of Mathematics archive)
The Journey of the Four Colour Theorem Through Time -
An 11 page article in PDF format which surveys the history of the theorem and discusses the philosophical implications of its recent computer-aided proof. (Andreea S. Calude, Univ. of Auckland)
The Prime Pages -
This is a page all about prime numbers. Links include: The largest known primes; Prime links; Lists of primes; Finding primes & proving primality; and The largest known prime by year: a brief history. (Chris Caldwell, Univ. of Tenn. Martin)

Conic Sections

Conic Sections: Yahoo! Directory -
Yahoo's directory of websites about conic sections.
Conic Sections -
A page from a website titled "Visual Dictionary of Famous Plane Curves." Includes: History; Description; Formulas; Properties; and Related web sites.
Conic Section -
From Wolfram Publishing's MathWorld website, this is a short page of descriptions and formulas of the concept of the conic section.
Conic Sections -
From a site formerly called Dave's Math Tables, this page presents definitions, equations, etc. of conic sections.
Conic Sections As the Locus of Perpendicular Bisectors -
This interactive website allows the user to visualize changing the focus, diameter and center locus of a circle. Part of the Geometer's Sketchpad site.
An Introduction to Conic Sections -
This page is an index to an extensive web site which teaches about conic sections..
SparkNotes: Conic Sections -
This site offers an introduction to, and example problems relating to, the two-dimensional figure created by the intersection of a plane and a right circular cone.


Vectors -
This site, authored by Gene Klotz, introduces concepts and ideas of vectors. Some lessons may require the use of the Geometer's Sketchpad. (The Math Forum)
Vectors -
"This tutorial we will examine some of the elementary ideas concerning vectors. The reason for this introduction to vectors is that many concepts in science, for example, displacement, velocity, force, acceleration, have a size or magnitude, but also they have associated with them the idea of a direction. And it is obviously more convenient to represent both quantities by just one symbol. That is the vector." (University of Guelph)
Vectors (Spatial) -
This Wikipedia article on spatial vectors. Quite extensive with links to definitions and examples of various types of vectors.
Vectors -
This is a basic introduction to vectors.
Vectors: Velocities, Accelerations, and Forces -
Another basic introduction to vectors.
Algebra: Vectors -
From Wikibooks, this is a basic introduction to algebraic vectors.
Vector -
From the PlanetMath website, this is a basic introduction to the concept of vector.

Teaching Units

Instructional Unit on Conic Sections --