Math:

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 General

 Algebra, Geometry, Trig, Calculus, Logic, Statistics

Go to:   Algebra   Geometry   Trigonometry   Pre-Calculus   Calculus   Logic   Statistics  

 Algebra 

• Algebasics
  Flash animation and video demonstrate the basics of algebra.
• Algebrahelp.com
  "A collection of lessons, calculators, and worksheets created to assist students and teachers of algebra."
• Algebra Lab
  "An online learning environment that focuses on topics and skills from high school mathematics that students must be able to draw upon in their introductory science courses."
• College Algebra
  Over fifty short tutorial lessons in various aspects of algebra from simple 1-variable problems to complex nonlinear equations.
• A First Course in Linear Algebra
  Free downloadable college-level textbook.
• Linear Algebra
  Another free downloadable college-level textbook.
• Purplemath
  Algebra lessons for high school students, link to other sites, study and homework hints.
• SLAC - Mathematics Course Tutorials
  Online slides and notes about basic mathematics, algebra, college algebra, and precalculus. (Slides only work with IE.)

 Geometry, Trigonometry 

• Dave's Short Trig Course
  Brief introduction to trignometry from a college professor.
• Euclid's Elements
  This site shows the principles of geometry by explaining and illustrating Euclid's "Elements" with clear text and interactive graphics.
• Geometry
  "Almost everything you'll ever need to know about Geometry. We have a special page on constructions and plenty of sample problems to help you understand the concepts." A ThinkQuest project.
• The Geometry Applet
  Illustrative applet for Euclid's Elements.

 Pre-Calculus 

• Exploring Precalculus
  "These materials provide an introduction to precalculus, using Mathcad or StudyWorks as a calculation and visualization tool. Many interactive examples let you explore the concepts and practice the skills necessary for understanding calculus."
• OJK's Precalculus Page
  A thorough coverage of precalculus topics. (Some pages are difficult to read due to formatting.)
• Precalculus Tutorial
  "This tutorial is designed for students enrolled in a Precalculus Course, or a course in College Algebra and Trigonometry. It does not, and cannot, replace the textbook or other class resources or assignments."
• The Prime Pages
  Everything you ever wanted to know about prime numbers.

 Calculus 

• Calculus On The Web
  "The principal purpose of COW is to provide you, the student or interested user, with the opportunity to learn and practice problems in calculus ... in a friendly environment via the internet."
• The Calculus Page
  Resources for students and teachers, plus links to many other calculus sites.
• Calculus Quest
  An introduction to calculus in the frame of a trip to a mythical mountain.
• The Connected Curriculum Project: Calculus
  Work in progress developing an online book teaching calculus.
• Finite Mathematics & Applied Calculus Resource Page
  Online tools and tutorials, quizzes, utilities, and more.
• Whitman Calculus
  "This is a freely available (Creative Commons licensed) calculus book, covering a fairly standard course sequence: single variable calculus, infinite series, and multivariable calculus. There is no chapter on differential equations."

 Logic and Critical Thinking 

• Critical Thinking on the Web
  Great set of links to sites about critical thinking, argument, assessment, hoaxes, evaluating sources, fallacies, statistics, and further related topics.
• Critical Thinking Web
  "Over 100 free online tutorials on critical thinking, logic, scientific reasoning, creativity, and other aspects of thinking skills."
• The Fallacy Files
  Logical fallacies - what they are and how to recognize them.
• forall x
  "An open access introductory textbook in formal logic."
• A Guide to Constructing and Recognizing a Valid Argument
  From a forum about philosophy.
• Introduction to Logic
  Interactive introduction to logic and reasoning.
• A List of Fallacious Arguments
  Describes several common fallacious arguments. Here you can learn to avoid using these false arguments yourself and to recognize when your opponant is using them.

 Probability and Statistics 

• Animated Statistics Demonstrations
  "Although these pages were written for behavioral statistics, they should be useful for anyone taking introductory statistics or in need of basic statistical information."
• Introduction to Probability
  Free downloadable textbook in .pdf format.
• Interactives: Statistics
  "n an election season, it's common to hear news reports regarding poll results. What do these figures mean and where do we get them? Follow a year in a fictitious election campaign for an inside look at the mathematics behind the polls and the news you hear everyday."
• MathPages: Probability and Statistics
  Explanations various aspects of probability and statistics.
• Probability by Surprise
  Applets demonstrating various aspects of probability theory, plus links to the complete notes for a college Introduction to Probability class.
• Probability Theory -- The Diamond Thief Game
  Illustrations of some basic principles through the use of Java applets.
• Statistical Literacy
  Online modules to teach the basics of statistics and help you "become much more critical about the way data is produced, the way data is presented and the way data is interpreted."
• Statistics Every Writer Should Know
  Clear explanations of various concepts in statistics (such as mean, median, per capita, sample size), aimed at journalists but useful to everyone
• STATS
  "Since its founding in 1994 ... (STATS) has become a much-valued resource on the use and abuse of science and statistics in the media."