 Voyager Learning Math Solutions  Cambium Learning, Inc.
Math curricula and programs from "your comprehensive intervention partner": Inside Algebra, Voyager Online Algebra, Vmath Summer Adventure, VmathLive, Showtime! Math, Vmath, TeachingBOT, and TransMath.
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 Voyager Sopris Learning  Voyager Sopris Learning, Inc.
Researchbased curricula, targeted interventions, assessments for Dynamic Indicators of Basic Early Literacy Skills (DIBELS), positive school climate resources, and professional services to educators working with preK12 students who have special needs
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 vrml.calculus.net (calculus@internet)  Curtis, Davis, Wayand
The visual study of threedimensional calculus using the power of VRML  Virtual Reality Modeling Language. The next generation of calculus course materials. Text in progress: Virtual Reality & 3D Calculus  addressing the question how virtual reality
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 VRML Gallery of Electromagnetism  Rob Salgado
A collection of VRML worlds that visualize the vector fields of electromagnetism. Subcategories: addition; wedge product; raising and lowering of indices; unit vectors; charged point (Coulomb); two charged points; charged dipole; charged sphere; charged
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 VulcanSoft
Win95/NT4 software. Includes a measurement converter with 15 categories and over 270 different measurement units, a financial calculator with 14 different financial calculations and table output, and a city distance calculator with over 1900 cities, which
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 Vygotsky's Distinction Between Lower and Higher Mental Functions and Recent Studies on Infant Cognitive Development  Eugene Subbotsky; Psychology Department, University of Lancaster, UK
One of the major theoretical advances of Vygotsky's approach to cognitive development was his thesis that human mental functions are social in origin. In making this claim, Vygotsky was confronted with the difficulty of reconciling it with the fact that
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 Waldomaths  Ron Barrow
Original applets on number, algebra and graphs; shape, space and measure; probability and data handling, including histograms; investigative tools (quadratic and cubic sequences); core (pure) mathematics; decision mathematics (network graphs and linear
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 Walking Randomly  Michael Croucher
Croucher's blog, which dates back to August of 2007, has included posts such as "Logo Programming on the pocket PC," "Christmas gifts for math geeks (like me!)," "Martial Mathematics," "R Compared to MATLAB (or 'learning a thing or two from your students'),"
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 WallaceBolyaiGerwien Theorem  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
According to the WallaceBolyaiGerwien theorem, all simple polygons of equal area are equidecomposable by dissection. The site offers a proof of the theorem and several dynamic illustrations of equidecomposition in special cases.
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 Wallpaper Groups (Plane Symmetry Groups)  David Joyce; Dept. of Mathematics & Computer Science, Clark University
Mathematicians classify plane patterns such as wallpaper patterns by means of symmetry groups  groups of transformations of the plane that leave the pattern invariant. A transformation slides, rotates, and reflects the plane into another position. Such
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 Walpha Wiki  Derek Bruff and others
As collaborative site to record how secondary and undergraduate math educators use WolframAlpha, or Walpha as it's called here, in the classroom. In particular, the authors are interested in how students might use Walpha themselves, as well as how teachers
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 Wanted: A New Mix  Keith Devlin (Devlin's Angle)
An essay on the insularity of mathematicians. "...mathematics as a whole should be prepared to embrace as a useful and bona fide part of the enterprise, collaborative investigations involving mathematicians together with experts in other disciplines."
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 Waring Experiments  Ivars Peterson (MathLand)
You might suspect that, at some point, four squares would no longer be enough to express a given whole number. This reasonable supposition was overturned in seventeenth century, when Pierre de Fermat proved that every positive whole number can be expressed
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 Washington MESA
Washington MESA (Mathematics, Engineering and Science Achievement) is developing middle and high school curriculum units and middle school modules/books available through Cuisenaire Dale Seymour Publications that integrate concepts within mathematics
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 WASL Math Prompts  Port Angeles School District, Washington state
Sample questions for the WASL, Washington State Assessment of Student Learning. Most questions have answers printed above the questions. Sample questions are offered for kindergarten through high school levels, organized by mathematical content, and accompanied
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 Was Math Invented or Discovered?  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about whether math was invented or discovered.
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 WatchKnowLearn  Community Foundation of Northwest Mississippi
Thousands of free online math educational videos, categorized into topics such as mathematics for young learners, number operations, math in the real world, precalculus, math study skills and test prep, and history of math.
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 Waterman Polyhedra and Maps  Steve Waterman
World maps based on close packing of spheres that resemble B.J.S. Cahill's octahedral butterfly world map, but with only five degree graticule. With links to the mathematics behind the cartography, polyhedra applications, and other original findings.
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 The Water Puzzle  Doug Ensley, Shippensburg University
Starting with a pail of water holding some unknown quantity greater than 8 quarts, and small (3 quarts) and large (5 quarts) vases as measuring devices, explore how to split 8 quarts of water from the pail equally between two people.
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 Water Puzzle  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
There are three glasses  3, 5, and 8 oz. The first two are empty, the last contains 8 oz of water. By pouring water from one glass to another make at least one of them contain exactly 4 oz of water. Investigation into this puzzle by experimentation,
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 Water Tidbits: Questions and Answers  U.S. Geological Survey (USGS)
Topics covered include: Water use in the United States, USGS water data and measurements; Water use in your home; Chemistry and water. Links to other sites about water.
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 WatsonMath.com  Elaine Watson
A repository for ideas and links that support Watson's work as a K12 mathematics consultant, such as spreading the word about the Common Core State Standards in Mathematics and how they can be implemented by classroom teachers. Posts, which date back
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 WAVE: Web Access Virtual Education  University Laboratory High School; University of Illinois at UrbanaChampaign
The Illinois WAVE Project provides Mathematica Tutorial notebooks categorized as pertaining to Algebra, Applications, Calculus, Conics, Geometry, Precalculus, Statistics, or Trigonometry, for use in the high school mathematics curriculum. From the University
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 The Weather Calculator  National Weather Service, El Paso, TX
The El Paso National Weather Service Office's weather calculator provides temperature, moisture, pressure, and wind unit conversions for 16 different weatherrelated variables.
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 Weather Plots (MSTE)  John Meseke; University of Illinois at UrbanaChampaign (UIUC)
Students use current weather data to observe and answer questions about the relation between temperature and humidity.
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 Weather Underground  University of Michigan
One Sky, Many Voices: resources for collaborative study of current weather events for K12 classrooms, afterschool groups, and athome learning. Gather data on weather information on the Web, current conditions around the world, historical weather patterns,
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 WebCalc  Blaine Hilton
A collection of free, Webbased calculators that solve complete equations. Many of the calculators allow the user to solve for any of the variables. Subjects include algebra, geometry, trigonometry, fractions, complex numbers, and miscellaneous math;
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 WebCalC  The WebMath Group
An online calculus course with easy to read text, fully worked examples, problem solutions, quizzes, and online linking. To view WebCalC, you need the software Scientific Notebook (a free viewer version is available). The site includes links to publications
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 Web Calculators  TimeValue Software
Online calculators for solving common financial problems, designed with the financial professional in mind and covering a wide assortment of financial applications such as refinancing a mortgage, saving for retirement, or determining an investment yield.
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 Web Chi Square Calculator  Catherine N. Ball and Jeffrey ConnorLinton, Department of Linguistics, Georgetown University
Perform the chi square test for statistical significance. First, enter the number of rows and columns; then, enter your data. Also, take a tutorial or run demos.
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 The Web Classroom  Eagle Eye Web Masters
An educational site from Australia that provides lessons and tests to help students understand concepts in Mathematics and build language skills in English. Elementary and Middle School math pages offer Fun with Fractions, "What Number," Times Tables,
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 WebCrawler
Search the WebCrawler contentsindexed database by keyword  the contents of documents are indexed, not just their titles and URLs. You may include both general and specific queries. Or browse categories: Arts & Books; Autos; Careers; Computers &
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 WebEnabled Scientific Services & Applications (Online Calculators)  Patrick Wessa
Equation Plotter (Plot mathematical equations, statistical distributions,
numerical integration). Scientific Forecasting (BoxJenkins ARIMA modeling, forecasting, and bootstrap simulation of financial profit density functions). Descriptive Statistics
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 WebGL Chorded Polygons
Dynamically draws all chords of regular polygons up to 250 sides. Adjust the sliders to change the number of polygon vertices, to zoom in, and to pan around.
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 WebGrapher  Tom Cooper
This page contains a graphing applet that can be used online or downloaded.
The applet can create dynamic graphs with sliders that can be saved as web
pages. Users can plot points, functions, parametric functions, polygons,
vectors and more. There
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 Web Hunt  Mary Gasch; Nerinx Hall, Webster Groves, MO
A Webbased hunt centering on nonEuropean mathematics, with links provided to the mathematical contributions of a variety of cultures. Students may submit answers to their own teachers via an onsite form.
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 Web Interface for Statistics Education  Claremont Graduate University
Interactive statistics tutorials, answers to questions, and other resources for teaching introductory statistics. Tutorials, with exercises and Java applets, address sampling distributions of the mean; an introduction to statistical power; investigating
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 Web Links Concerning Statistics Teaching  William Knight
A link list including other collections of links, statistics glossaries, data sources, a particularly nice set of web textbooks and/or course notes, CHANCE, software distribution sites, and interactive (applets, etc.).
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 webMathematica  HostSRV.com
HostSRV.com hosts applications of webMathematica, a collection of tools that allow Mathematica commands to be placed inside HTML pages. A web hosting account includes storage space, bandwidth, FTP access for uploading scripts and files, and the use of
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 WebMath: Instant Solutions to Math Problems
Instant solutions to math problems: look over the various links on the home page until you find a topic that seems to describe the math problem you're working on. Select a link then another and you will be presented with a blank form into which you can
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 Web Maths  Serge Henry
Un site pour les mathématiques scolaires, utilizant le multimédia (Flash) pour apprendre et comprendre les maths. Aussi, un forum pour poser des questions; l'aide en ligne.
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 Web of Primes  Ryan Ingram
The first twenty billion prime numbers, indexed, searchable by ordinal position, and written out in English. See also Ingram's http://cpnumbers.com/, for the first one hundred million counting numbers factored.
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 Web of Stories
Watch life stories of "people who have influenced and changed our world," such as Nobel laureates and eminent scientists  or record your own stories. Video biographies available through the Web of Stories' flagship channel "Lives" include mathematician
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 The Web Page Dedicated to Pi  Paul Johns
Information on pi, 120,000 digits of pi, pi jokes and poems, a pi club, message board, facts and records, links to other pi sites, and more.
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 WebPisces  Gallery of Interactive Geometry, Geometry Center
A Webbased interface to the Pisces program that allows you to compute implicitly defined curves in the plane. Choose from several predefined functions and modify their parameters and domains. Pisces is a Platform for Implicit Surfaces and Curves and
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 WebStat  R. Webster West, Todd Ogden; Dept. of Statistics, Univ. of South Carolina
A statistical computing environment for the World Wide Web, written in the form of a Java applet. WebStat should run on any of the three major platforms (Mac, PC, Unix). It is currently equipped to do almost everything you need for an introductory statistics
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 WebTeacher  National Cable Television Association, Tech Corps
A selfpaced free internet tutorial designed for teachers and including both basic and indepth information about the World Wide Web. Email, Telnet, FTP, searching, web page design, image files, sound files, movie files, news groups, chat groups, teleconferencing,
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 Webtrig  Thomas E. Price
A Web tutorial on the fundamentals of trigonometry. The lessons in PDF format include an introduction to angles and their measurement, definitions of the trigonometric functions, graphs of trigonometric waves, an introduction to
trigonometric identities,
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 The Web Wizard's Math Challenge  J. Mooser
An ongoing Internet contest; register (free) to submit answers and score points. Problems are designed to be readily understood but not readily solved. Speed counts, because points are awarded based on the order in which contestants submit correct answers.
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 WeBWorK  Meliora Mathematica, University of Rochester
Delivering homework problems to students over the Internet. WeBWorK gives students instant feedback as to whether their answers are correct or not. Originally developed by Michael E. Gage, Professor of Mathematics, University of Rochester.
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