 Association for Computing Machinery (ACM)
The world's oldest and largest educational and scientific computing society. Since 1947 ACM has provided a vital forum for the exchange of information, ideas, and discoveries. Today, ACM serves a membership of more than 80,000 computing professionals
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 Association for Experiential Education (AEE)
An international membership organization with roots in adventure education, committed to the development, practice, and evaluation of experiential learning in all settings: education, recreation, outdoor adventure programming, mental health, youth service,
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 Association for Supervision and Curriculum Development (ASCD)
A site designed to provide relevant and current educational resources to members, with an emphasis on ASCD materials and sources of international and federal government information, in particular state and local government sources. Also a forum for worldwide
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 Association for Symbolic Logic
The Association for Symbolic Logic (ASL) is an international organization supporting the presentation, publication, and critical discussion of scholarly work in the field of logic. Its current membership reflects the longstanding important role of logic
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 Association for Women in Computing
The Association for Women in Computing (AWC) is a notforprofit, professional organization for individuals with an interest in information technology. AWC is dedicated to the advancement of women in the computing fields, in business, industry, science,
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 Association for Women in Mathematics (AWM)
Founded in 1971, this organization publishes a substantial and broadly informative newsletter (information: awm@math.umd.edu). Its programs and awards include Travel Grants for Women, the Noether Lecture Series, Workshops for Women Graduate Students and
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 Association of Christians in the Mathematical Sciences (ACMS)
ACMS promotes interaction among Christians in the mathematical sciences and encourages them to explore the relationship of their faith to their discipline. History, membership and online newsletter.
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 Association of European Operational Research Societies (EURO)  International Federation of Operational Research Societies (IFORS)
A notforprofit association domiciled in Fribourg, Switzerland, regulated by a Council consisting of representatives/alternates of all its members and an Executive Committee that constitutes its board of directors. Its aim is to promote Operational Research
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 Association of Mathematics Teacher Educators (AMTE)  California State Polytechnic University, Pomona
A nonprofit organization created to promote the improvement of mathematics teacher education in all its aspects. Promotes leadership; serves as a clearinghouse for ideas and resources; encourages research; encourages and supports programs for prospective
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 The Association of State Supervisors of Mathematics
A network for those who provide supervising and/or consulting services in the area of mathematics as a staff member of the education agency of their US states, territories, or protectorates; Canadian provinces; or other regions. Request membership information;
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 Association of Teachers of Mathematics (ATM)
A U.K.based association that aims to support the teaching and learning of mathematics by encouraging increased understanding and enjoyment of mathematics. It addresses all those concerned with mathematics education in primary schools, secondary schools,
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 AsTeR Demonstration  T.V. Raman
Mathematics for Computer Generated Spoken Documents. AsTeR is an Audio System For Technical Readings: a computing system for rendering technical documents in audio, developed by Raman for his Ph.D.; an audio formatted version of his thesis, (approximately
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 ASTER: Mathematics For Computer Generated Spoken Documents  T. V. Raman
AsTeR, an Audio System For Technical Readings: a computing system for rendering technical documents in audio, dedicated to the author's guidedog. Demo. Audio LaTeX postscript. Examples cover simple fractions and expressions; superscripts and subscripts;
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 Asteroids in projective geometry  Flynn, Heath
A game similar to "Asteroids," but set in the projective plane. Written in Director 8 by high school student David Flynn with some technical help from Dr. Deej Heath, it is playable via Shockwave.
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 ASTEX: A TypeSetting System for the Web  Michael A. Ziegler
A JavaScript application for putting mathematics on the web, including 2D graphs and 3D surfaces. Available under the GNU Lesser General Public License.
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 Astrokettle Algorithms: 2D/3D Packing, Cutting, and Scheduling Optimization  Nikita Yurchenko
Scientific and technical software algorithms and custom solvers for development, numerical analysis, modeling, and simulation for mathematics, physics, and engineering. Software for 2D and 3D rectangle cutting, packing, and limited
resource scheduling
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 Astronomiae Historia / History of Astronomy  International Astronomical Union, Astronomische Gesellschaft
General history of astronomy pages on the Web: a catalog of archives and libraries, museums, memorials, historical places and exhibits, research institutes and departments, publications, and other sources of information. Visitors can read five different
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 Astronomical Image Processing System (AIPS)  National Radio Astronomy Observatory
A software package for calibration, data analysis, image display, and plotting of astronomical data.
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 Astronomy Calculator  R.T. Back
The Astronomy Calculator provides general information about the phases of the moon and planets, and annual meteor showers. You supply the date, time of observation, and the number of hours east and west from directly overhead.
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A Supplemental Introduction to Algebra  Rick Garlikov
Some things algebra books don't tend to tell students, but which Garlikov thinks are important for them to know so that they can understand what algebra is about and see, in a sense, how it works. Also The Way Algebra Works.
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 Asymptopia Software  Charles Cossé
Free math games include TuxMathScrabble, which challenges players to construct compound equations in the manner of Scrabble; Multiplication Station, which provides practice in addition, subtraction, and multiplication; and MakeItTrue, a web application
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 Asymptotes  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about asymptotes, such as "What are the vertical and horizontal asymptotes of f(x)?"
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 AT Algebraic Topology (Front for the Mathematics ArXiv)  Univ. of California, Davis
Algebraic Topology preprints, from the U.C. Davis front end for the xxx.lanl.gov ePrint archive, a major site for mathematics preprints that has incorporated many formerly independent specialist archives. Search by keyword or browse by topic.
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 ATCM: Asian Technology Conference in Mathematics
Aan international conference addressing technologybased issues in all Mathematical Sciences. Site includes past proceedings, upcoming conference details, calls for papers, and more. The organizers write: "Thanks to advanced technological tools such as
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 Athena, Earth and Space Science for K12  Learning Technologies Project
Instructional Material for the classroom, most with student activities and some supported by Teacher Talk. Major scientific topics include Oceans, Earth Resources, Weather, Space, and General Information. A second section lists other material, similarly
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 Athena Scientific
A small publishing company that specializes primarily in textbooks written by professors at the Massachusetts Institute of Technology and used in their courses. Publications: three textbooks currently used in first year graduate courses at the Department
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 At Home with Math/Diez Actividades Cotidianas para Padres y Ninos  TERC, Inc, and Ceridian Corporation
Ten activities designed to engage children in arithmetic, estimation, measurement, problemsolving, and other important math skills in the context of ordinary life at home. These activities are designed for children ages 511 and their parents, and are
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 ATI's Mathematical & Physical Wavelets Course  Dr. Gerald Kaiser, Instructor
Summary of an Applied Technology Institute Training Seminar in wavelet analysis (Applications to Generalized Radar and Sonar Analysis).
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 Atlantis Puzzles & Games  Karl Scherer
Puzzles and games for sale; puzzle books (A Puzzling Journey To The Reptiles And Related Animals; NUTTS And Other Crackers; New Mosaics  A Book On Tilings); Fractal computer art; brain teasers (AMaze; Globetrotter). Also ALIVE, a WINDOWS version of
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 ATLAS of Finite Group representations  R. A. Wilson
Representations of many finite simple groups and related groups such as covering groups and automorphism groups of simple groups. Contents: groups: Alternating & Symmetric, Lie type, and sporadic. Includes experimental generic group pagemaker and an experimental
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 ATLAST Project Forum
A National Science Foundation project to encourage and facilitate the use of software in teaching linear algebra. Includes information on the book ATLAST Computer Exercises for Linear Algebra , (PrenticeHall, Fall 1996, featuring teacherdeveloped, classtested
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 The Atoms Family  Miami Museum of Science, Science Learning Network
An online exhibit containing educational activities relating to different forms of energy, as presented by famous gothic horror characters. Activities include: The Mummy's Tomb (energy conservation, kinetic, and potential energy), Dracula's Library (properties
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 At Right Angles  Azim Premji University
Journal of math pedagogy and educational technology published since 2012. Issues come out in March, July, and November, with sections such as "In the classroom" (ITC) and Problem Corner, as well as topical features, book reviews, pullouts, and more.
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 Audiblox  Susan du Plessis
Audiblox is a system of cognitive exercises, aimed at the development of the skills foundational to reading, spelling, and writing. A resource for dyslexia, dysgraphia and other learning disabilities.
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 The Austin Math Tutor  Chester Martin
Test preparation and math tutoring in Austin, Texas, for Algebra through Calculus: College Algebra, Geometry, Statistics, Trigonometry, Calculus I & II, PreCalculus, Finite Math, GRE GMAT SAT I & II, and High School 912 (including AP & IB Courses).
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 Austin Math Tutoring  The Math Tutor  Kevin Hogan
Oneonone math tutoring in and around Austin, TX. Subjects covered include algebra, geometry, trigonometry, precalculus, calculus (single and multivariable), differential equations, linear algebra, and probability and statistics. Subject levels run
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 Austin Math  Tutor  Tim Pham
AustinMath.com is a private tutor service that specializes in Math and Science.
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 Austin Tutors: Tutoring in Austin, Texas
Commercial tutoring service around Austin, Texas, for high school and college students, and test prep.
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 The Australasian Journal of Combinatorics  The Combinatorial Mathematics Society of Australasia, Inc.
A triannual publication of the Combinatorial Mathematics Society of Australasia (CMSA). Search across all of the journal's volumes for authors or keywords in article titles; browse tables of contents dating back to the March, 1990, issue. Also, learn
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 Australian Bureau of Statistics World Wide Web Information Service  Commonwealth of Australia
The ABS is Australia's official statistical organisation. It assists and encourages informed decisionmaking, research, and discussion within and between governments and the community. The site includes: a statistical profile of Australia; key national
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 The Australian Mathematical Society (AustMS)  Ian Doust, Editor
AustMS promotes and extends mathematical knowledge and its applications in Australia. The site provides information about the society, its publications, and conferences.
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 Australian Mathematics Trust
A national nonprofit organisation that conducts mathematics competitions and mathematics enrichment activities. Two subtrusts, each with equal status under the Trust Deed and represention on the Board: Australian Mathematics Foundation (conducts one
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 Austrian Mathematical Society (ÖMG)  Gerald Teschl
The national mathematics society of Austria. The site includes membership information, publications, news.
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 Authentic Assessment in Mathematics  Daley, Diamond, Handy, McKenzie; The Geometry Forum
A group project carried out at a Geometry Forum Summer '94 Workshop at Swarthmore College, Swarthmore, PA. The goal of this project was to collect and organize available INTERNET resources on Authentic Mathematical Assessment applicable to Secondary Schools.
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 Authentic Assessment Toolbox  Jon Mueller
A howto text on creating authentic tasks, rubrics and standards for measuring and improving student learning, including an introduction to the topic with comparison to traditional testbased assessment, why and how best to use it, standards, tasks, rubrics
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 Authentic Inquiry Maths  Bruce Ferrington
Blog by an Australian teacher who advocates Tedious Repetitive Activities Involving Number (TRAIN) for the Genuine Application of Mathematical Experience (GAME). Posts, which date back to April, 2012, have included "Top 10 Maths Songs," "Maths and Making
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 Authors and Reviewers (AMS)  American Mathematical Society
AMS Journal authors (submission information, editorial boards, AMS electronic journals, and AMS published and distributed journals); AMS book authors (program overview, how, why to become an AMS author, author questionnaire); Mathematical Reviews reviewers
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 AutoAbacus  Nathan Funk, Singular Systems
An equationssolving application and calculator. Any number of simultaneous equations can be solved instantly. Uses for the program range from checking results on homework assignments to setting up mathematical models of a reallife problems. A demo is
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 AutoDiff  Alex Shtof
Define your functions from basic primitives, and this .NET library evaluates and differentiates them analytically, calculating their values and gradients at specified points. Download AutoDiff's latest version; read documentation; track issues and check
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 Autograph (Mathematics)  Eastmond Publishing Ltd
Autograph is visualization software that operates in two modes: graphs, coordinates and bivariate data; and singlevariable statistics and probability. Resources include graphs, statistics, screencam demos, Microsoft Word worksheets, PowerPoint presentations,
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