Mathematics in the Yahoo! Directory

MathWorld
Comprehensive and interactive encyclopedia of mathematical equations, terms, derivations, and more, for students, educators, math enthusiasts, and researchers.
mathworld.wolfram.com
Coolmath.com
Coolmath has cool math games and puzzles, lots of really clear math lessons (arithmetic, fractions, decimals, algebra, etc.), fractals, geometry, tessellations, and more. Geared for ages 13-100.
www.coolmath.com
Math Goodies
Free math help site featuring interactive lessons, worksheets, and puzzles.
www.mathgoodies.com
Maths Dictionary for Kids, A
Easy definitions for basic math.
www.teachers.ash.org.au/jeather/maths/dictionary.html
Interactive Mathematics Miscellany and Puzzles
Games, puzzles, proofs, facts, and other resources.
www.cut-the-knot.com
Mathematical Quotation Server
Collection of quotations about math and mathematicians, from Descartes to Einstein. Search by keyword, browse by author, or view a random quote.
math.furman.edu/~mwoodard/mquot.html
Wolfram Functions Site, The
Encyclopedic collection of information about mathematical functions serving as a resource for the educational, mathematical, and scientific communities.
functions.wolfram.com
Plus
Articles explaining the diverse applications of mathematics within physics, chemistry, biology, engineering, and economics, plus stories about new developments in mathematics and interviews with mathematicians.
plus.maths.org
Mathematical Atlas: A Gateway to Modern Mathematics
Collection of short articles designed to provide an introduction to the areas of modern mathematics and pointers to further information, as well as answers to some common questions.
www.math-atlas.org
Math in the Movies
Motion pictures with scenes of real mathematics.
world.std.com/~reinhold/mathmovies.html
Probability Tutorials
Online course on measure theory, lebesgue integration, and probability. Individual lessons are in PDF format.
www.probability.net
Goudreau Museum of Mathematics in Art and Science
Seeks to promote and encourage interest in mathematics for everyone. Offers hands-on exhibits and workshops for all age groups.
www.mathmuseum.org
MGNet
Information related to multigrid, multiscale, and domain decomposition methods: preprints, tutorials, codes, monthly newsletters, and a large BibTex database.
www.mgnet.org
This Week's Finds in Mathematical Physics
John Baez's column on mathematical physics where he describes papers and books that he happens to find enjoyable.
math.ucr.edu/home/baez/TWF.html
Math in Daily Life
Explore how math can help you in your daily life, and look at the language of numbers through common situations, such as playing games or cooking.
www.learner.org/exhibits/dailymath
Math Database
Search through journals from 1931 to the present.
www.emis.de/ZMATH
Platonic Realms
Math quotes, mini-texts and definitions.
www.mathacademy.com
Knot a Braid of Links
Weekly selection of graphically interesting mathematics sites.
camel.math.ca/Recreation/kabol/knotlinks.html
Greek Alphabet
Greek alphabet table listing all of the letters, upper-case and lower-case, with their names and pronunciations, and with an emphasis on their use in mathematics.
www.mathacademy.com/pr/prime/articles/greek/index.asp
Jim Loy's Mathematics Page
Facts and problems for algebra, geometry, calculus, arithmetic, number theory, and more.
www.jimloy.com/math/math.htm