hitmill.com

Chalk Board is a directory of math links for students and educators.

The Abacus
Algebra
Calculators
Geometry
History of Mathematics
Pre-Calculus
The Calculus

Abstract Algebra
References, Research, Tables, Directories
Slide Rules
Trigonometry
Women in Mathematics, Physics, Sciences
Other Math-Related Links

The History of Calculating (webcom.com)
Calculating Machines (webcom.com)
The Ways of Counting (Philip Emeagwali)
History of Mathematics (ClarkU.Edu)
Library History of Science, Technology, and Medicine (Virtual Center)
The MacTutor History of Mathematics Archive (U. of St. Andrews, Scotland)
The History of Mathematics (Trinity College, Dublin)
Index of Greek Mathematicians (St.Andrews.ac.uk)
Greek Mathematics (Chris Weinkopf) (tufts.edu)
Greek Mathematics and Its Modern Heirs (ibiblio.org)
Mathematics: Ancient Science and Its Modern Fates Ibid.
Readings in Ancient Greek Mathematics (tamu.edu)
Famous Mathematicians Ibid.
Open Directory Project: Mathematicians (DMOZ.org)
History of Mathematics (clarku.edu)
A History of Zero (St.Andrews.ac.uk)
The MacTutor History of Mathematics Archive  (St. Andrews.ac.uk)
Blaise Pascal (1623-1662) (st-and.ac.uk)
Gottfried Wilhelm Leibnitz (1646 - 1716) (mtsu.edu)
George Boole (1815-1864) (Digital Century.com)
George Boole (St. Andrews .ac.uk)
The Calculus of Logic by George Boole (maths.tcd.ie)
Babbage's Analytical Engine (~colesr)
Websites Relevant to the History of Mathematics

What is An Abacus? Hitmill.com -- Definition of abacus, pictures, history of, counting tables, and related links.
The Abacus - The Art of Calculating with Beads (ee.ryerson.ca)
The Abacus: The Art of Calculating with Beads (java.sun.com)
The Abacus: A History (Liz Young)
How to Use a Chinese Abacus  (uga.edu)
How to Use a Chinese Abacus: A Computer-Based Tutorial (Math Forum.org)
The Abacus - Mathematics and the Liberal Arts (T.Hammond, truman.edu)
The Abacus Great picture! (CyberKids)
Buy a Chinese Abacus (asianideas.com)

A History of the Calculus
An Historical Outline of the Calculus
ecalculus.org: The Calculus Page (ucdavis.edu)
e-Calculus Calculus 1 Tutorial (University of Akron)
Resources for the Calculus student, the Calculus Instructor; links to other calculus sites, History of calculus, sites with problems, sample tests, and so much more�. Bookmark it!
The Calculus Page Problems List
MathArchives Calculus Resources Online (math.utk.edu)
Visual Calculus Teaching Modules

Guide to Available Mathematical Software (nist.gov)
JOMA: Journal of Online Mathematics and Its Applications
Math Archives (utk.edu)
Internet Mathematics Library (mathforum.org)
Mathematics Online Bookshelf Academic Info - Mathematics (meta-index)
A Catalog of Mathematics Resources on the World Wide Web (University of Wisconsin)
The Math Archives Index (University of Tennessee, Knoxville)
Mathematics Research Library (University of Washington)
Geometry Analysis, Numerics, Graphics (U. Mass.)
Math Reference Tables (Math2.org)
Mathematics Resources at Galaxy.Einet.Net
Yahoo Mathematics Listings
BigChalk.Com's Homework Directory by Subject
Interactive Mathematics Online (Thinkquest.Org)
http://www.cut-the-knot.com/content.html
  Math Miscellany, Puzzles, Problems, and more...
Books by Clifford Pickover  (Includes books like The Alien IQ Test)
U. of Florida Statistics Page
Mathematics Education (Florida State University)
Philosophy of Mathematics
  by David S. Ross, Ph.D., a mathematician at Eastman Kodak Research Labs
List of Mathematics Servers (Penn State)
EducationNews.Org: Mathematics
National Council of Teachers of Mathematics
Pacific Journal of Mathematics
Scientific American Ask The Experts (Math topics)
Math Search (U Sydney)
Mathsoft Resources (including unsolved math problems)
Center for Discrete Mathematics and Theoretical Computer Science (DIMACS) (Rutgers, a collaborative project)
CSAIL at MIT (Computer Science and Artificial Intelligence Laboratory)
 (applied mathematics, research and modeling, distributed algorithms, complex distributed systems, robotics, and more at CSAIL ; should be visited if interested in engineering, robotics, computer science, applied mathematics, research)

Interactive Mathematics Online  (Algrebra and Geometry)
Advanced Geometry
Geometry Lesson Plan Sites Geometry Analysis, Numerics, Graphics (U. Mass.)
The Fractal Microscope (NCSA at UIUC)

Nancy Lynch at MIT
Archives of Women in Science and Engineering  (Iowa State University)
4000 Years of Women in Science (ua.edu)
Biographies of Women Mathematicians (agnesscott.edu)
Female Mathematicians (st-and.ac.uk)
Women Mathematicians (About.com)
Site has distracting wobbly advertisements

Texas Instruments Calculators
TI Graphing Calculators
Hewlett-Packard Calculators
hpcalc.org (H-P Calculator info.)

Algebra Help
Stroh Math Page (Algebra I and II by Mr. Stroh)
BigChalk.Com
Interactive Mathematics Online (Algrebra and Geometry)
Quadratic Equation Calculator (for Intermediate Algebra students)
This is a good place for you to check your calculations on those quadratic equations if you do not have an answer book. They take the form of ax² + bx + c = 0, where a, b, and c are coefficients.
Quadratic Formula Rewritten (Harry J. Smith)
Denise Carlton's Algebra Tutorials Page
Practical Algebra Lessons from PurpleMath.com
MathDorks's Interactive Math: Algebra
Algebra Review Tutorials (hofstra.edu)
MathsDirect Algebra Tutorials (mathsyear2000.org)
Linda Martin's Math Page

Math Forum - Pre-Calculus (swathmore.edu)
Math Forum Internet Mathematics Library: Pre-Calculus (mathforum.com)
edu-links: Pre-Calculus (rsts.net)
Math Archives, Pre-Calculus Topics (utk.edu)
OJK's Pre-Calculus Study Page
Standard Deviants Exam: Pre-Calculus
Pre-Calculus: Math for Morons Like Us
Pre-Calculus and Introduction to Probability

The Greek Alphabet
Platonic Realms Interactive Mathematics Encyclopedia
CRC Press Mathematics Books (also books in other disciplines)
Interactive Calculators The Curta Calculator Page MathGoodies Lesson Library
Worksheet Goodies
The Math Forum 
The Fibonacci Sequence
The Probability Tutorials
Fun With Mathematics!!!
Profession Jokes for Mathematics
Careers in Mathematics

Trigonometry at BigChalk.Com
Trigonometric Identities
An Introduction to Trigonometry (Tutorials)
Dave's Short Trig Course
Frequently Asked Questions About Trigonometry
Math Help Desk
Trigonometry homework help and online tutorials
Trigonometry Realms
Perimeter and area of polygons
Trigonometry (Mimesis.net) Many excellent Trig. tutorials
Activities in Math - Trigonometry Functions and other tutorials
Trigonometry (Encyclopedia.com)
The Unit Circle (and Trig. Functions of Common Angles)
Complex Numbers and Trigonometry
The Law of Cosine
Trigonometry Applets

Abstract Algebra Online (niu.edu)
[e-book]Elements of Abstract and Linear Algebra
Abstract Algebra (Univ. of Minnesota)
The Mother of Abstract Algebra
Abstract Algebra (algebra.com)
Advice for Students for Learning Abstract Algebra (U. Minn.)

Slide Rules (Historical information)
Basic Slide Rule Instructions
Slide Rule Emporium
Table of Slide Rule Scales
The Old Slipstick
Slide Rule Trivia
Sphere Research Corp. Pickett Slide Rules
Eric's Slide Rule Site (with scans of several slide rules; link collection)
Make Your Own Circular Slide Rule
The International Slide Rule Group, and other groups