 +Plus
Magazine introduces readers to the beauty and the practical applications
of mathematics 
 1100
Factored and other posters for our visualspatial kids, you have
to see this one to believe it! 

The
20 Greatest Equations Maxwell's, Euler's, Pythagoras', Einstein's... 
 The Abacus the art of calculating with beads, from its history, to its use today 
 Absurd Math Prealgebra from another dimension...

 Algebasics
An online Algebra course in 16 chapters, with great instruction and
examples! (Flash enabled) 
 algebra.help
a collection of lessons, calculators, and worksheets to help
students... 
 Algebra Lessons from Absolute Value, to the Quadratic Formula, to
Vertical Line Test... 
 Arthur
Benjamin does "Mathemagic" a TED Talk you have to see to
believe! 
 Art
of Problem Solving For avid students of mathematics, including the
largest, most active online problem solving community in the world, USAMTS
Talent Search, Math Jams guided improvisational problem solving sessions, and
more! 
 Babylonian
Mathematics Our first knowledge of mankind's use of mathematics comes from
the Egyptians and Babylonians 
 BeatCalc Beat the Calculator, with this weekly trick (mailing list, type "subscribe" in message body)
 BeatCalc BeatCalc archives with over
400 math tricks! 

 Bob
 Penrose Tiling Generator and Explorer (downloadable software) 
 BrainPop
Health, science,
technology, math, English and more... (some free, some subscription) 
 Calculus
'Thrift Shop' Parody: Teens' Hilarious Macklemore Cover For School
Project 
 Can
you solve Franklin's puzzle? Benjamin Franklin stumps us once
more! 

Change Maker the Cash Register Game 
 Cinema
Fiction vs. Physics Reality, or The Geometric Progression of
Vampires 

Classic Fallacies several proofs that 2=1, and more... 
 clickmazes,
unique interactive puzzles and mazes, including
Oskar's collection 
 CMS
Math Projects for Science Fairs 
 Cogito.org
news and features, questions and answers, even mentors, in math and
science! 
 Convertme.com
Units conversion / metric conversion online 
 Cool Math Tessellations, fractals, dampening functions, careers in math and cool links, too 
 CyberChase
fun interactive arithmetic games 

Encyclogram
explore harmonograms, spirographs, and lissajous figures 
 EPGY K8 Puzzle Page although only EPGY students can compete, these are still great puzzles for everyone! 
 eTutor
Graphing Calculator a great tool for math students of all ages! 
 Even
Number proof even zero is an even number! 
 ExploreMath.com
Advanced math concepts, tons of interactive activities... 
 Fermat prime numbers Fermat (16011665) conjectured that every number of the form 2^{2x}+1 is prime... 

Fibonacci Numbers and the Golden Section Fibonacci's show up everywhere! 
 Franklin Institute Online: Educational Hotlist from Art to Math to Music to Science and more... 
 Girls
Go Tech discover careers and explore games in math, science and
technology... especially for girls! 
 Hex
a simple, yet elegant, board game, invented by John Nash (and
independently by Piet Hein)  can you find your path? (Java) 

How
to Calculate Pi by Throwing Frozen Hot Dogs an amazing
experiment that actually works! 

I
Will Derive Just a fun little song (parody of "I will survive")
for all of us who've taken calculus 
 If
the IRS Had Discovered the Quadratic Formula for our mathies,
especially those old enough to have filed taxes (requires ^{
Adobe Reader}) 
 Illuminations
Activities interactive math from
Illuminations 
 Interactives
from Annenberg Media Learner...

 It
slices, It dices an introduction to the ʃ of calculus 
 JuggleMaster
download, and create your own juggling patterns! 
 Kaleidoscope Painter A
mesmerizing site! 

Kenny's Math and Physics Help Great explanations for good questions in math and physics 

KnotPlot
Site knots and links, viewed from a (mostly) mathematical perspective,
including free KnotPlot program download 
 Lure
of the Labyrinth digital game for middleschool prealgebra
students, with a wealth of intriguing mathbased puzzles wrapped
into an exciting narrative game in which students work to find their
lost pet  and save the world from monsters! 

MacTutor
History of Mathematics archive mathematician biographies, math history,
and more... and it's interesting! 
 MakeaFlake
Create your own interactive snowflakes  great art, great
symmetry... 
 Mastermind
choose 2 to 6 colors, and play! 
 Math
Apprentice Math is the path to anything you want to be...
skateboard through town and find out! 
 Math Baseball from
FunBrain, Score runs with your math skills


MathCandy!
"I make pictures with candy and math. You get to look at them!"
But it's far more than that... 
 The
Math Circle a program of courses designed for students who enjoy math and
want the added challenge of exciting topics that are normally outside the
school curriculum... 
 The
Math Dude Quick and Dirty Tips
Simple answers to tricky math questions, from Addition and
Subtraction to the Golden Ratio and Fibonacci! 
 Math Forum from
Drexel, including these and more...

 Math
in the Movies Oz, Die Hard, Bedazzled, and more... 
 MathMate
hundreds of free math tutorial lessons filled with explanations and
handy hints 
 MathMovesU
an interactive world of math fun! (middle school level+, by
Raytheon) 
 Math
Open Reference: Volume 4 Plane Geometry great interactive
applets demonstrate
ellipses,
tangents, and
much more! 
 MathPlayground Logic Games Creative logic puzzles for all ages!
Check out Civiballs, Factory Balls and more... 
 Math,
Physics & Engineering Applets Oscillations and Waves, Acoustics,
Electricity and Magnetism, and lots more! 
 Math
Playground Interactive math puzzles, including Rubik's Cube and the Towers
of Hanoi, among others 
 Mathematical
Quotations Server "Life is good for only two things, discovering
mathematics and teaching mathematics" Sim鯮 Poisson 
 Mathematics with Alice for anyone interested in learning more about Mathematics, but who find Math textbooks too dry 
 Mathematics
is Everywhere poster campaign featuring the ever growing importance of
Mathematics in modern society... 
 MathNerds.com
Free, discoverybased, mathematical guidance via an international, volunteer
network of mathematicians... 
 Maths
is Fun tons of fun, from basic math to data, geometry, money,
algebra and more. Don't miss the games... 
 Mega
Mathematics from Hotel Infinity to Graphs and Knots to Map Theory, tons of great math! 
 Mudd
Math Fun Facts Divisibility by Seven, Math and Calculus
Limericks, Goldbach's Conjecture, Wallis' Formula and more from our
friends at Harvey Mudd 
 Murderous
Maths The books, the extra bits, games, hints, tricks, puzzles... they're
all here! 
 Mystery
Master Logic Puzzles logic puzzles, with printable solving grids 
 National
Library of Virtual Manipulatives for Interactive Mathematics PreK to
12th grade virtual manipulatives... 
 Negative
Exponent Intuition a quick video with an "Aha!" message
(YouTube) 
 nrich free mathematics enrichment resources for pupils of all ages, online
resources including discussion forums and mathematics thesaurus... 
 Notes
on Prefixes the Système International d'Unités or SI. yotta, zetta,
exa, peta... 
 National
Security Agency/Central Security Service Kids and Youth Peer into the
secret world of cryptology... 
 NUMB3ERS
Math Education Program the math used in each episode of
NUMB3ERS! 

Numbers,
constants and computation π, e, log_{2 }and other constants,
binary splitting, Newton's iteration and other algorithms, counting primes,
and more... 
 Octave
GNU Octave is a highlevel language, primarily intended for
numerical computations... 

π Day a song for your favorite holiday! 

semiannual
periodical promoting mathematics, designated for high school students 
 Paper
Models of Polyhedra platonic solids, Archimedian solids, uniform
polyhedra, compounds, literally hundreds of paper models 
 PHI:
The Golden Ratio or Golden Section in Nature, Art, Science and
Religion 
 Planarity
Game
Arrange the vertices such that no edges overlap 

Platonic
Solids (a.k.a. Dice Shapes) 5 regular solids are also called the
5 Platonic solids... (or try
Wikipedia) 
 The
Prime Glossary your Internet guide to the terminology of prime numbers 
 Purplemath
Algebra Resource, with lessons and selfevaluation 
 Puzzle
Parlor
interactive GamePuzzles 
 The
Puzzling World of Polyhedral Dissections Stewart Coffin's book, now
on the web 
 Rainforest
Maths fun interactive math activities K6 
 SAT
Math Pro learn math concepts and problem solving strategies, real video
solutions, improve your confidence! 
 Science (and Math) Help Online help with any science or math w/ NASA consultants
(Yahoo group) 
 Simpsons
Math The Simpsons is one of the most literate TV programs on the air,
containing many references to subject matter and scholars! 
 Slide
Rule (often nicknamed a "slipstick") is a mechanical analog
computer... 
 The
Sliding Block Puzzle Page
tons of great interactive sliding puzzles! 
 The
Sound of pi a concert of huge proportions! 
 Thinking
Blocks interactive math tool to help students learn how to solve
challenging word problems 
 SolveIt! University of Delaware's
Math Enrichment Program by mail 
 Stephen's
Guide to the Logical Fallacies Logical fallacies are errors of reasoning,
errors which may be recognized and corrected by prudent thinkers. This site
indexes and describes all known logical fallacies... 
 Tessellations Lots of them! 
 Tessellation Town create your own tessellations, interactively 
 Totally
Tessellated comprehensive introduction to tessellations, with history,
math, and of course, Escher! 
 Trachtenberg
Speed System of Arithmetic far superior to the current arithmetic taught
in schools and it has been found to increase self confidence and
concentration... 

Understanding
Statistics flash demos... 
 Unizor
rigorous mathematical topics addressed usually by those high school
teachers and advanced students who strive to deepen their
understanding of principles and concepts of mathematics... 
 ViHart
Amazing math and doodle videos that make math concepts simple, fun,
and exciting! 
 Virtual
Manipulatives
prek to 12th grade, numbers, algebra, geometry, and more  great interactive
fun! 

Visual
Algebra An exploratory of algebra [I and II] through the eye 
 WatchKnow
videos to learn from, organized... check the leaderboard, by topic,
or search for whatever you need 
 WebSudoku
Number puzzle, but no math required... trillions of puzzles! 
 Wolfram
 Alpha computational search engine... solves anything
mathematical! 
 Wolfram MathWorld The web's most extensive mathematics
resource! 
 Women
and Mathematics Monthly posters about the life and work of a woman who
has made a contribution to the mathematical sciences... 
 Zomepad
Modeling Software
with models to follow, examine and build a new challenge every
month!
