http://mathforum.com/

The Forum experiments with using the Web for instruction and with involving Forum users in the creation of materials. The goal is to open possibilities for educational materials that combine hypertext, interaction, multi-media, and communication at a distance.

http://www.mathsnet.net/a2zofssheets.html

The things you need to know about spreadsheets are summarized here, with particular reference to Microsoft Excel, though note that much of what is written for Excel will apply to most ofther "Windows" spreadsheets as well.

http://www.aplusmath.com/

This web site was developed to help students improve their math skills interactively.

http://www.learner.org/resources/series66.html

This website features a series of 26 half-hour videos (VoD - Video on Demand) which play from the web in a quarter screen view. Topics cover exponents, radicals, polynomials, linear functions, complex numbers, quadratic equations, absolute value, circle and parabola, ellipse and hyperbola and more. The site requires a (one-time) registration and log in for viewing. Registration is free.

http://sunsite.ubc.ca/LivingMathematics/V001N01/UBCExamples/Pythagoras/pythagoras.html

Interactive Java program that solves the Pythagorean Theomem by looking at the areas of squares.

http://www.mste.uiuc.edu/wofford/balance/

The balance has three different objects that can be placed on it. The weight is given to one of the three and students try to figure out the other two objects weights.

http://www.mste.uiuc.edu/exner/ncsa/leastsquares/

Applet allow student to select data points then it plots the line of best fit.

http://www.howe-two.com/free/Pascal/index.html

Explore the patterns made by numbers given in Pascal's triangle.

http://www.purplemath.com/index.htm

This is a great tutorial with interactive lessons for most alegbra topics.

http://www.quickmath.com/www02/pages/modules/algebra/index.shtml

QuickMath can expand, factor or simplify virtually any expression, cancel common factors within fractions, split fractions up into smaller ('partial') fractions and join two or more fractions together into a single fraction.

http://www.xyalgebra.org/

xyAlgebra: Intelligent, Interactive Instruction and Practice in Algebra and Verbal Problems.

http://www.learner.org/exhibits/parkphysics/

Amusement park rides use physical laws to simulate danger. How does physics affect amusement park ride design? In this exhibit, you'll have a chance to find out by designing your own roller coaster. You can also experiment with bumper car collisions. Check the physics glossary to find terms used in this exhibit. Copyright Annenberg/CPB (Center for Public Broadcasting). Includes history of coasters, related links, info on carousels, concepts of free fall and pendulum, as well as safety factors.

http://www.download.com/Audacity/3000-2170_4-10058117.html

Teachers and students may download Audacity software for FREE at this site. Audacity is a free program that allows students to create blogs so that teachers may incorporate them into their curriculum.

http://www.awesomelibrary.org/

Awesome Library has organzied the web with 31,000 carefully reviewed resources,which include the top 5 percent in education.

http://www.scienceacademy.com/BI/index.html

nteractive site that presents problems in basic computation to reading problems and tracks progress.

http://www.agnesscott.edu/lriddle/women/women.htm

Great resource for research papers on women in mathematics. Some of the sites include pictures.

http://www.math.hmc.edu/calculus/tutorials/

Great tutorials for pre-calculus, calculus, linear algebra, and differential equations.

http://www.karlscalculus.org/calculus.html

You will find coverage of limits, continuity, derivatives, related rates, optimization, L'Hopital's rule, integration, and much more. There are dozens of problems worked out for you step-by-step.

http://archives.math.utk.edu/visual.calculus/

A collection of modules that can be used in the studying or teaching of calculus.

http://www.cut-the-knot.com/SimpleGames/Calendar.shtml

The site explains how everything in a calendar is based on properties of arithmetic progressions (or series). There is an additional calendar investigation that is tied to arithmetic progressions.

http://www.cinderella.de/en/demo/

This site contains a set of Java Applets that are interactive for showing Pythagorean Theorem, perspective drawings, and more.

http://www.howe-two.com/mathematicat/topics.html

Tutorials for Algebra, Geometry, and Trig on the web.

http://www.sodaplay.com/constructor/

Constructor animates and edits two-dimensional models made out of masses and springs. The springs can be controlled by a wave to make pulsing muscles, and you can construct models that bounce, roll, walk, etc.

http://www.brightstorm.com/

Brightstorm uses teacher videos to target understanding of content for high-school or college age students. Their solutions include a free Math video series. In addition, they have paid products which include test preparation programs, such as our SAT, ACT and Advanced Placement courses. Their programs also include practice quizzes, downloadable materials, full-length practice exams and more.

http://joshmadison.com/software/convert/

Convert is an easy to use unit conversion program that will convert the most popular units of distance, temperature, volume, time, speed, mass, power, density, pressure, energy and many others, including the ability to create custom conversions!

http://www.coolmath.com/graphit/index.html

The GraphApplet 1.0 is a full featured Graphing Calculator with some rare features added.

http://www.math2.org/

This site has exactly what it says -- math tables and includes a search area to find a specific formula. Students (and others) can choose from a variety of mathematics fields.

http://school.discovery.com/

Site has worksheet generator, games, quizzes and much more.

http://www.dositey.com

A collection of educational units. Dositey.com is intended to provide a much-needed boost to teachers looking to enhance their classroom curricula, as well as to provide teachers with innovative homework assignments. Each module is designed to be instructional, fun, and easy to use. Lessons are interactive and utilize visual presentation of a single topic to enhance the learning experience. For example, addition problems in math are displayed both with and without regrouping. Site has printable worksheets in addition to interactive activities.

http://www.edhelper.com/addition.htm

This site has 1000s of worksheets that are free to download and print.

http://www.cloudnet.com/~edrbsass/edmath.htm

There are many links to sites for lesson plans, math-relates rubrics, and other information.

http://www.edu4kids.com/#http://www.edu4kids.com/

Drill games are for students grades K-12 including Math, Social Studies, Vocabulary and Science. Topics for the drills include U.S. President, U.S. and World Geography, Periodic tables, and Math tables. Good site for high school review. Site requires membership but has several free drills.

http://scienceworld.wolfram.com/biography/

Eric Weisstein's World of Science contains budding encyclopedias of astronomy, scientific biography, chemistry, and physics.

http://www.explorelearning.com

These guys do simulations... right! Their site requires registration but don't let that keep you from their amazing interactive materials. Included are such items as Modeling Linear Systems where the model is a game of cat and mouse. Some materials require a fee.

http://chickscope.beckman.uiuc.edu/explore/eggmath/expon/

Explains exponential growth of cell division and provides interactive graph activities.

http://empower.terc.edu/

Extending Mathematical Power (EMPower) curriculum units for teachers and students is organized around the topic areas of Number Sense; Patterns, Functions, and Relations; Geometry and Measurement; and Data and Statistics.

http://www.factmonster.com/mathmoney.html

Helpful facts from number theory to multiplication table, metric conversions, and much more.

http://www.funbrain.com/kidscenter.html

At this website students as well as adults can play Where Is That?, a map game, seeing how many countries they can correctly identify. This game has different levels to test ones map skills, from simple to more difficult. They can also play RaceCar Math as well as games to develop skills in reading/language arts such as Grammar Gorillas.

http://www.geom.umn.edu/

The Geometry Center was set up to support "math computer science research, mathematical visualization, software development, application deveopment, video animation production, and K-16 math education.

http://www.ics.uci.edu/~eppstein/junkyard/

There is a ton of junk on this site! A lot of it may be too advanced for a regular high school class, but there is definitely plenty that can be used. This could be a great place to let advanced students go explore.

http://www.geom.umn.edu/apps/

Interactive sites of interest to Geometry.

http://www.nes-lab.com/english2/o-mail/index.html

This site has 10 free interactive Java-Applets for Pythagorean Theorem, Rotation, and more.

http://www.mste.uiuc.edu/carvell/rectperim/RectPerim2.html

This applet teaches about length, width, area and perimeter.

http://psoup.math.wisc.edu/extras/hexca/hexca.html

This site has a nice collection of software for producing color graphics of cellular automata, fractals and the like.

http://www.shodor.org/interactivate/activities/sketcher/index.html

Interactive site that draws the linear graph with changing slopes and y-intercepts.

http://www.prenhall.com/divisions/esm/app/calculator/

Step-by-step instructions for the TI-82 from Prentice Hall.

http://www.sites4teachers.com/links/redirect.php?url=http://ecedweb.unomaha.edu/lessons/lessons.cfm

Here are some great online economics lessons--all levels and content areas keyed to the Nebraska Social Studies/Economics Standards. If you know the concept you want to teach, start from the K-5 concepts list or the 6-12 concepts list. Materials from which to create more lessons are available from the Virtual Economics Companion.

http://www.helasculpt.com/

This site presents pictures of sculptures created by an artist with a PhD in mathematics. The sculptures are created in a variety of materials and have a mathematical basis for their designs.

http://highschoolace.com/ace/ace.cfm

The High School Hub is a noncommercial portal to excellent free online academic resources for high school students. It features learning activities, a daily news quiz, a reference collection, SAT practice, college information, and subject guides for English, mathematics, science, social studies, world languages, arts, health, and technology.

http://service.homeworkhelp.com/

Homeworkhelp.com's mission is to create the best possible educational software and services for middle and high school students, and college students. It is our hope that our creative, innovative and interactive educational products and services can empower students of all ages to achieve their educational goals.

http://math.rice.edu/~lanius/Algebra/hottub.html

This lesson presents a graph of the water level of a hot tub over time. Students are then asked to "tell the story" behind the graph, giving as many details as they can justify from the graph.

http://www.hotmath.org/

Math homework help - Tutorial solution to textbook homework problems.

http://www.indo.com/distance/

This service uses data from the US Census and a supplementary list of cities around the world to find the latitude and longitude of two places, and then calculates the distance between them (as the crow flies). It also provides a map showing the two places, using the Xerox PARC Map Server.

http://www.quickmath.com/www02/pages/modules/inequalities/index.shtml

The inequalities section of QuickMath allows you to solve virtually any inequality or system of inequalities in a single variable. In most cases, you can find exact solutions. Even when this is not possible, QuickMath may be able to give you approximate solutions to almost any level of accuracy you require. In addition, you can plot the regions satisfied by one or more inequalities in two variables, seeing clearly where the intersections of those regions occur.

http://theory.uwinnipeg.ca

Resources for physics and math from the University of Winnipeg. Some notes include videos (often preceded by advertising).

http://www.kclogin.com

The two subjects that Kids College focus on are Math and Language Arts. All of the questions asked are Core Content Driven. This program does cost an annual fee but is a wonderful investment. The program adjust to each students skill level and lets the teacher track the progress. The children are motivated by getting to play various sports activities for correct answers.

http://www.teachervision.com/

Great materials across the curriculum at all grade levels.

http://www.lessonplanz.com/Preschool/

A database of lesson plans for educators.

http://www.math.odu.edu/~bogacki/lat/

This Linear Algebra Toolkit is comprised of the modules. Each module is designed to help a linear algebra student learn and practice a basic linear algebra procedure, such as Gauss-Jordan reduction, calculating the determinant, or checking for linear independence.

http://sunsite.ubc.ca/LivingMathematics/

The site has a collection of interactive math activities to provide students with the opportunity to visualize math.

http://mathforum.org/alejandre/magic.square/adler/adler.whatsquare.html

Tutorial that explains the math behind the game of magic squares.

http://www.ies.co.jp/math/java/

The material presented in the following pages are for middle school students, high school students, college students, and all who are interested in mathematics. You will find interactive programs that you can manipulate and a lot of animation that helps you to grasp the meaning of mathematical ideas.

http://mathcentral.uregina.ca/index.html

An internet service for mathematics teachers and students offered in French and English.

http://mathforum.com/

The Math Forum is a leading center for mathematics and mathematics education on the Internet. The Math Forum's mission is to provide resources, materials, activities, person-to-person interactions, and educational products and services that enrich and support teaching and learning in an increasingly technological world.

http://www.learner.org/exhibits/dailymath/

This site explores how math principles can be helpful when deciding whether to buy or lease a car, following a recipe, or decorating a home.

http://www.math.com/

This site contains math tutorial material ranging from fractions through calculus.

http://www.lessonplanspage.com/MathProbabilityChance.htm

Using the game, Rock, Paper, and Scissors, students will collect and graph data, analyze that data, and explain the rules of probability

http://pegasus.cc.ucf.edu/~ucfcasio/qvmath.htm

Lesson plans on how to incorporate use of the digital camera into the math classroom.

http://www.geom.umn.edu/~lori/mathed/problems/

This is a web-base of interesting mathematics problems that may be used in classrooms or just for fun.

http://www.mathnerds.com/

MathNerds provides Free, discovery-based, mathematical guidance via an international, volunteer network of mathematicians.

http://www.mathsnet.net/graphs/index.html

MathsNet Interactive Graphs is a website designed to enable students to get a clear and complete understanding of coordinates and graphs. Every page is interactive, using either interactive geometry, graphing or algebra applets, to allow the user to change the display using the mouse and to see the effect these changes have.

http://www.mathway.com/

This website allows you type in a mathematical problem and the site shows step by step how to solve the problem.

http://www.scottbryce.com/mathwork/

On-line math worksheet generator with everything from the basics to reading a ruler.

http://schools.spsd.sk.ca/mountroyal/hoffman

Math site for high school teachers with material ranging from general math through calculus. There are excellent worksheets and exams.

http://nces.ed.gov/nceskids/

The National Center for Education Statistics includes several games, quizzes and skill building activities for math, probability and graphing. It includes an interactive activity where you can enter up to 5000 dice rolls and see the outcome on a graph.

http://www.nytimes.com/learning/teachers/lessons/mathematics.html

Many ideas to use in the math classroom that will add interest to topics.

http://mathforum.org/workshops/usi/pascal/pascal_hsdiscans.html

Given a model of Pascal's Triangle, students as asked a series of questions about number patterns they observe.

http://www.pbs.org/teachers/

View lessons and activities by selecting a grade range and topic. Areas covered include Art, Health and Fitness, Math, Reading and Language Arts, Science and Technology, Social Studies, Early Childhood, Library Media and Technology Coordinators.

http://www.pppst.com/

Power point and animations for teachers to use in their classroom. All content areas included.

http://www.physicscentral.com

With different types of resources available, this website from the American Physical Society covers a variety of needs of physics teachers at all levels. For high school and college students, the features from Physics in Action and People in Physics let students see how physics applies to the "real world."

http://www.geom.umn.edu/apps/rainbow/

Interactive site that explains how a rainbow is formed and allows you to input

http://sunsite.ubc.ca/LivingMathematics/V001N01/UBCExamples/Kepler/kepler.html

Interactive program that allows you to change the eccentricity of the circle to show how the speed of the object changes as it goes around in orbit

https://pumas.gsfc.nasa.gov/

PUMAS (poo' · mas) -- is a collection of one-page examples of how math and science topics taught in K-12 classes can be used in interesting settings, including everyday life. The examples are written primarily by scientists and engineers.

http://www.mathpower.com/

Basic math skills are explained very clearly in student tutorials, where students explain step-by-step how to solve unequal equations, algebra word problems and factoring polynomials. Homework assignments are available, as are study and test-taking tips. Professor Freedman's video snippets explain some basic concepts such as additions and subtraction of signed numbers.1

http://www.project2061.org/

Project 2061 is the long-term initiative of the American Association for the Advancement of Science working to reform K-12 science, mathematics, and technology education nationwide.

http://www.shodor.org/interactivate/lessons/pyth.html

This lesson uses three different interactive graphing activities to teach Pythagorean Theorem. These are found under the Activities section.

http://www.quickmath.com/

Think of it as an online calculator that solves equations and does all sorts of algebra and calculus problems - instantly and automatically!

http://www.readwritethink.org/

The website states its purpose is to "provide educators and students access to the highest quality practices and resources in reading and language arts instruction."

http://www.math.rice.edu/~lanius/Lessons/Patterns/rect.html

This activity teaches the concept of finding a pattern and deriving a formula that fits the data.

http://regentsprep.org/

Tutorial site to help high school students pass the New York State Regents Exam. It contain help in math, physics, chemistry, and more.

http://education.jlab.org/indexpages/

Test your knowledge of the Table of Elements on-line with our Element Flash Card, Element Hangman, Element Matching, Element Concentration and Element Math games! A printable Periodic Table of Elements is also available! An interesting version of Millionaire activity is available to test general math and science knowledge. More activities will be added as they are completed.

http://www.songsforteaching.com/index.htm

Using music to promote learning. Ideas and resources for using music to teach content across the curriculum to students of all ages.

http://sosmath.com/

Tutorial with exercises for algebra, trig, calculus, differential equations.

http://www.teachervision.com/lesson-plans/lesson-6222.html?wtlAC=gsa100202,email-t

Great site for teachers were they can specifiy grade level and subject area to download and print free worksheets and activity sheets.

http://www.teachersfirst.com/index.cfm

"TeachersFirst is a rich collection of lessons, units, and web resources designed to save teachers time by delivering just what they need in a practical, user-friendly, and ad-free format. We offer our own professional and classroom-ready content along with thousands of reviewed web resources, including practical ideas for classroom use and safe classroom use of Web 2.0. Busy teachers, parents, and students can find resources using our subject/grade level search, keyword search, or extensive menus."

http://www.texasbeyondhistory.net/

Learn archeology within the context of one state. Texas Beyond History starts with a site map to archeological sites around Texas. The Kids area has activities and even a link to an expert, Dr. Dirt. For teachers, there are lesson ideas in the arts, mathematics, literature, and history & social studies.

http://www.bbc.co.uk/education/mathsfile

Games in algebra , measurement, and many other areas of math

http://www.time.gov/

This public service is cooperatively provided by the two time agencies of United States.

http://www.utm.edu/research/primes/

Web site dedicated entirely to the study of prime numbers.

http://www.k12science.org/curriculum/shipproj/

This activity involves real world problem solving through unique uses of instructional technologies.

http://library.thinkquest.org/16661/

A tessellation is a repeating geometric pattern. Examples of these beautiful designs can be seen in the mosaics of Mediterranean culture and the surrealist art of M.C. Escher. Totally Tessellated takes you on an exploration into the history and construction of a variety of different types of tessellations.

http://sunsite.ubc.ca/LivingMathematics/V001N01/UBCExamples/Plot/calc.html

Interactive program that plot the graph of the function entered.

http://www.ies.co.jp/math/java/trig/sixtrigfn/sixtrigfn.html

Interactive Java program that allows the participant to select from the 6 trig functions and watch what happens to their values as they rotate a unit circle from o to 360 degrees.

http://catcode.com/trig/index.html

This site offers a basic presentation on “What is Trigonometry?” by presenting it simply as the study of how the sides and angles of a triangle are related to each other.

http://nlvm.usu.edu/en/nav/vlibrary.html

This website has hundreds of virtual math manipulatives that teachers and students can use for free.

http://www.webmath.com/

Not even calculus can resist the power of our step-by-step problem solvers.

http://www.math.com/students/wonders.html

Learn about Fractials, Chaos, Tessellation, and many other topics with interactive activities.

http://www.bls.gov/opub/working/home.htm

Working in the 21st Century is a portrait of the U.S. workforce at the beginning of the New Millennium: a set of charts and related information about subjects ranging from education levels to retirement plans. You can view either the slide show or the individual slides.

http://id.mind.net/~zona/

Zona Land was created by high school math and physics teacher Ed Zobel to provide students with a different approach to the study of mathematical sciences and physics.