 Assessment Resource Center (ARC)  University of Missouri
The ARC "promotes the practice, enhances the understanding, and advances the use of assessment in education, business, and the professions." ARC develops and applies measurement instruments and research and evaluation services, offering project management
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 Assessment Resources: Math  Cynthia Good
A list of links to guides, standards, curricular frameworks, activities, tests, and other resources for assessment in mathematics.
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 Assessment Suggestions  Math Forum, Teacher2Teacher FAQ
Answers to a frequently asked question: How can I assess my students at the beginning of the year? Midyear? Throughout the year?
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 Assignment Calculator  The University of Minnesota
Enter the date you will begin an assignment and its due date, then select a subject area such as mathematics, and the Assignment Calculator will outline steps to take to complete the work on time.
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 Assignments and Mathematical Musings from Mr. Kirk  Benjamin Kirk
Blog by a math teacher at Ithaca (New York) High School and adjunct instructor at Tompkins Cortland Community College (Dryden, NY). Since February, 2010, Kirk has blogged "as my primary means of communicating with students and parents outside of class,"
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 Association for Advancement of Computers in Education (AACE)
A searchable site, with divisions/societies/chapters; major journals; The AACE listserv, EDUCTECH; Educational Technology Review (the Association member periodical); special publications; and conferences with workshops, and proceedings devoted to advancing
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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 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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 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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 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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 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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 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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 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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 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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 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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 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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 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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 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 Center for Didactics of Computer Algebra (ACDCA)
Download teaching examples, materials, and exams that use Computer Algebra Systems (CAS)  in particular, the TI92 calculator. With bugs, tips and cheats in handling the TI89, TI92, and Texas Instruments Voyage200. Also, get news about the Center
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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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 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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 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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 Automated Geometry Java Applet Generation  Saltire Software
Prototype automatic generation of Java Applets from a constraintbased geometry description. Examples: geometry applets (angles on a chord, similar triangles, angles between parallel lines, two right kites, perpendicular bisectors of a right triangle,
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 Automatic Calculus Solutions: StepbyStep Derivatives and Integrals
Derivatives and integrals, done automatically with each step explained. Long multiplication and division of polynomials.
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 Automatic Fractal Map Generator  Paolo Guagliumi
A freeware program that generates .map files used by Winfract and Fractint, which make use of .map files that contain 256 lines of ASCII characters that describe RGB (red, green, blue) color values. Site is in English and Italian.
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 Avances de Investigación en Educación Matemática
The official publication of the Spanish Society for Research in Mathematics Education (SEIEM, Sociedad Española de Investigación Matemática) welcomes contributions in either Spanish or Portuguese. Freely download PDFs of past articles,
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 "Average" Temperature (Math Chat)  Frank Morgan, MAA Online
Answering the challenge: The National Weather Service approximates the daily average temperature by the average of the daily high and low temperatures. Why is this such a good approximation? Mathematically, the approximation is good because Earth's warming
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 Averaging Diving Scores  NASA Lewis Learning Technologies Project
Kim received the following scores in the state diving championships: 5.2, 5.6, 4.5, 5.0, and 5.2 What was her average (mean) score? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test.
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 Averting Instant Insanity  Ivars Peterson (MathTrek)
Once called "The Great Tantalizer," the puzzle looks innocuous and sounds quite simple. It consists of a set of four cubes with one of four colors on each of their six faces. Your goal is to arrange the four cubes in a row so that all four colors appear
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 The Awari Oracle  John Romein
Play the ancient African "count and capture" strategy board game, related to mancala, and also known as wari, awale, oware, or ayo. Dutch computer scientists from Amsterdam's Vrije Universiteit developed a program that computes the best move and eventual
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 Awesome Grades in Math and Science (AGMS)  Anita Delmar; AwesomeInfo.com, Inc.
You may purchase the AGMS main volume, a comprehensive guide for success in grades 712 math and science courses; a checklist/diagnostic tool; and a Web resource list (Anita Delmar's personal collection of the "best of the best" in math and science help
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 Awesome Library  R. Jerry Adams
Browse or search this carefully reviewed collection of math lesson plans, standards, and other classroom resources, organized by topic and grade level. With support from the Evaluation and Development Institute, the Awesome Library screens thirdparty
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 AwesomeTutors.com
Las Vegasbased oneonone tutoring service, with email, webcam and phone tutoring available for most tutoring subjects. Prepayment required.
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 Axiom (Encarta Encyclopedia 2000)  Robert M. Baird; Microsoft Encarta Online
Axiom, in logic and mathematics, a basic principle that is assumed to be true without proof. The use of axioms in mathematics stems from the ancient Greeks, most probably during the 5th century BC, and represents the beginnings of pure mathematics as
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 The Aztec Calendar: Math, Geometry, and Design  Charles William Johnson
A site that explores the relation between the mathematics of ancient reckoning systems, expressed in historically significant numbers (cited in the historical record), and designs within the geometry of ancient artwork. The complexity of design within
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 The Aztec Calendar  René Voorburg
Historical information and illustrations of the two more or less independent systems comprising the Aztec calendar, one having 365 days and based on the agricultural or solar year, the other with 260 days. A Calculator allows you to enter a date in the
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 Babylonian and Egyptian Mathematics  MacTutor Math History Archives
Linked essay describing the character and accomplishments of these two early mathematical systems, with references and other related web sites.
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 Babylonian numerals  MacTutor Math History Archives
Linked essay exploring the development of the Babylonians' number system, with ideas inherited from the Sumerians and the Akkadians. From them came base 60, or the sexagesimal system, but neither the Sumerian nor the Akkadian system was a positional system
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