A Bunch of Math Links

Shodor Project Interactivate - Interactive Java-based courseware for exploration in science and math.

Mathwizz This site has interactive problem generators. Students can get practice making and solving problems in the following categories: arithmetic, fractions, integers, decimals, algebra, geometry, statistics, conversion math.

CuriousMath.com - Want to learn how to quickly square a number that ends in 5? Or how to tell if a number is divisible by 3? Or maybe you'd like to know why the number 153 in the Bible is such an interesting number? That's the kind of fun and fascinating math tricks and trivia you'll find here.

The Math Forum Internet Mathematics Library at Drexel. Pretty good stuff for math, math education, and educational topics.

Math Tools from Math Forum. Some very cool tools. You have to register, but there's no charge. Included is a java applet that simulates algebra tiles.

National Library of Virtual Manipulatives from Utah State University - exactly what it says it is. This has the virtual algrbra tiles that were pointed to by Math Tools. Other virtual stuff: balance scales, function machine, tower of hanoi, lots more.

Inversions by Scott Kim. Some of the coolest math art.

Mathwords - a dictionary/encyclopedia for math and math-related terms

Conic Sections: Apollonius and Meaechmus - conic sections along with a history lesson

Mathworld from Wolfram. The best advanced online math resource that I know of.

Calculus-Help.com. This has lots of very cool interactive stuff for calculus students, including videos that explain both limits and derivatives.

The Integrator by Mathematica - it integrates functions for you online. Very, very cool.

Math Archives from the University of Tennessee, Knoxville. Contains resources for both math and math education. Pretty broad.

The Mathematical Atlas - This is a collection of short articles designed to provide an introduction to the areas of modern mathematics and pointers to further information. College level.

Find the Error! by Doug Shaw of the University of Northern Iowa. Good calculus tricks.

MacTutor History of Mathematics archive from the University of St. Andrews in Scotland. Great history of math reference. Also, click on "Famous Curves Index" to get some pretty nice java applets that let you manipulate parameters and see the outcome in the curve.

Algebrahelp.com is a collection of tools created to assist students and teachers of algebra. Check out the calculators.

MiddleSchool.net has links to lots and lots of online calculators.

World Web Math, from MIT, is an ongoing project that will attempt to present the fundamentals of elementary undergraduate-level introductory mathematics with the myriad relations between all of the subjects.

Illuminations, sponsored by NCTM. Has many lessons, "iMath" student online investigations. Lots of java applets, multimedia stuff.

Science U: the Geometry Center: tiles, tesselations, you name it. Interactive. Gets pretty deep. Cool.

Marco Polo - Internet Content for the classroom: a website that lets you search for lessons, aligned to TEKS.

Whistler Alley Mathematics - website of math teacher Paul Kunkel that has "some mathematics investigations I have pursued over the years", including LOTS of cool Geometer's Sketchpad files. Topics include Brachistochrone problem, Buffon's Needle and the orthocenter of a triangle.

Homepage of Jim Wilson at U. of Georgia. He's got lots and lots of Geo Sketchpad lessons that are either ready to roll or very good launching pads for cool constructions.

NY Regents web site

Organizations:

Rice University School Math Project

National Council of Teachers of Mathematics

Other stuff:

HTML tutor from W3 Schools.com

HTML tutor from pagetutor.com

(there are lots of other good HTML tutorials out there, but I like these, since I think they explain the concepts fairly well, and they don't try to sell you anything.)