 sciencetotouch  Jürgen RichterGebert
Projects for interactively visualizing science, from one of the coauthors of the Cinderella geometry software package: iOrnament, a drawing and explanation app for the 17 crystallographic wallpaper groups; ixquadrat, a museum exhibit of symmetry, Escher,
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 Science vs Magic  Nico Disseldorp
JavaScript by Disseldorp, who "likes it when simplicity makes complexity": tessellation kit, for kaleidoscopic drawing; fractal machine, for investigating seven axes of self similarity; logic grid, for exploring recursion; and elementary cellular automata.
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 Scientific American
The online version of the technology magazine, with interlinked articles, interviews with scientists, Ask the Experts, and Explorations, guided tours across the Web of recent technological developments. An archive of past articles is included.
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 Scientific Applications of Linux  HerngJeng Jou and Kachina Technologies, Inc.
SAL (Scientific Applications on Linux) is a collection of information and links to software for scientists and engineers. Math categories include computer algebra systems, arrayoriented and linear algebra systems, statistics, and number theory. Numerical
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 Scientific Letter  mailer with formulas  Scientific Networks Software
Mail software that allows users to create messages with complex mathematical formulas. The equation editor used in the mailer allows users to create complex equations swiftly and to see formulas in their usual form. Addressees of letters from Scientific
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 Scientific Notebook  MacKichan Software, Inc.
Use Scientific Notebook to create documents with text, mathematics, and graphics. Do freeform, natural editing of mathematics within expressions and text. Solve problems with the builtin version of the Maple computer algebra system. Import expressions
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 Scientific Surfing for Children  Mike May, American Scientist
An early article about the World Wide Web by Mike May in the NovemberDecember issue of American Scientist, pp. 568571, discusses the world of scientific information and activities on the Internet, and forums in which professional scientists are waiting
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 Scientist Cards  All Too Flat
Trading cards, humorously based on Topps and Fleer baseball cards, list the writing preference, dominant cortex, university, and key contributions of Richard Feynman, James Clerk Maxwell, Isaac Newton, Albert Einstein, Claude Shannon, Leonhard Euler,
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 Scientopica  Dr. Ken Milligan
A science portal that aims to make the acquisition of scientific information more efficient. Services include a sciencespecific search engine and directory, 8 categories of constantly updated science news, a science events calendar, forums, reviews,
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 sci.fractals FAQ (Frequently Asked Questions)  Shirriff, Stepp
A archived FAQ from sci.fractals, a Usenet newsgroup about fractals; mathematics, and software, aimed at being a reference about fractals, including answers to commonly asked questions, archive listings of fractal software, images, papers that can be
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 sci.fractals FAQ  Taylor, Louvet
A FAQ posted monthly to sci.fractals, a Usenet newsgroup about fractals, mathematics, and software, aimed at being a reference about fractals, including answers to commonly asked questions, archive listings of fractal software, images, and papers that
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 sci.math  Math Forum
A very active unmoderated discussion group focused on general and advanced mathematics. Read and search archived messages; and register to post to the discussions.
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 sci.math.symbolic  Math Forum
An unmoderated discussion group for symbolic mathematics packages. Read and search archived messages; and register to post to the discussions. Conversations in this group overlap to some extent with the Matlab and Mathematica discussion groups, but it
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 SciPhilately: A Selective History of Science on Stamps  Maiken Naylor; Science and Engineering Library, Univ. at Buffalo, Buffalo, NY
Stamps from the personal collection of the author, Maiken Naylor, in the following categories: Astronomy and Cosmology; Instruments and Measurements; Mathematics and Computation; Chemistry; Evolution and the Fossil Record; Biology; Heredity and the Genetic
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 sci.stat.edu  Math Forum
An unmoderated newsgroup focused on statistics education. Read and search archived messages; and register to post to the discussions. Also available at http://lists.psu.edu/cgibin/wa?SUBED1=edstatl&A=1.
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 ScottBeall.com  Scott Beall
Professional development programs for mathematics teaching and interdisciplinary curricula, emphasizing the integration of music and mathematics. With examples from his recent publication Functional Melodies  Finding Mathematical Relationships in Music
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 Scott Kim, Puzzle Master
A puzzle and graphic design creator, Scott Kim offers links to his online puzzles, a gallery of inversions (or ambigrams, words or names written so they read in more than one waysome read upside down, some flip in a mirror, some read as two different
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 Scout Report Signpost: QA  Mathematics  Internet Scout Project
A selected set of mathrelated Internet resources chosen by the editorial staff of the Scout Report. Resources are cataloged, classified, and arranged using existing taxonomies such as the Library of Congress Classification Scheme and the Library of Congress
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 Scrambled Grids  Ivars Peterson (MathTrek)
The socalled baker's map, or transformation, in dynamical systems theory. One special case: Start with a square. Stretch it to twice its original length
while making it half as wide. Cut the result in half, and stack one half on top of the other to
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 Sculpture Generator  Ivars Peterson (MathTrek)
"Judging what a sculpture will look like after it is finished can present many difficulties for an artist just beginning a piece... Computer scientist Carlo Séquin of the University of California, Berkeley, specializes in the
computerassisted
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 The Seaborg Center  C. Wozniak, Northern Michigan University
The Glenn T. Seaborg Center for Teaching & Learning Science and Mathematics reflects Seaborg's belief that, in today's world, each citizen must have a solid base in the understanding of and appreciation for scientific concepts and the technology to
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 Search Ask Dr. Math Archives  The Math Forum
Search by keyword K12 math questions answered by volunteer 'math doctors' in the U.S. and abroad.
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 Search for Math on the Internet  The Math Forum
Keyword search of all searchable archives, Newsgroup archives, Dr. Math archives, Problems of the Week, Internet Math Library, or any combination thereof.
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 Searching for Information  Math Forum, Teacher2Teacher FAQ
Answers to a frequently asked question: How do I find information by searching on the Web? Suggestions include ideas to try, archived T2T conversations on the subject, links to search tips on the Forum site and other popular search engines, and links
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 Searching For New Mathematics  Ivars Peterson
Peterson points out that nonmathematicians interested in keeping up with contemporary mathematical research face daunting obstacles: the high level of abstraction, unenlightening notation, and the format of journal papers all conspire to make any foray
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 Search the Internet Mathematics Library  Math Forum
Select the desired Math Topic, Math Education Topic, Level, and Resource Type.
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 Search the MacTutor History Archive  University of St. Andrews, Scotland
Search all or any combination of topics: Biographies; References; Quotations; History Topics; Bibliography; Famous Curves; Societies. With search suggestions.
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 Search the UK Mirror Service  Higher Education National Software Archives
Formerly HENSA, this UK service maintains copies of electronic archives from all over the world, providing access to a wide range of uptodate software for those using PC's and microcomputers. The indexes searched allow you to find software held in any
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 Seattle Fractals Digital Art  Doug Harrington
A fractal art site featuring highresolution digital fractal art prints for sale, and fractal art Windows 95/98/NT/2000 screensavers.
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 Secondary Math Units  Margaret Sinclair
Units for grades 912. For grades 910: Data Collecting in the Classroom, Algebraic Problemsolving using Spreadsheets (a unit that emphasizes moving from numerical to symbolic representation), and a newspaper review unit on the Skydome. For grades 1112:
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 The Secret Garden of Maths  Micky Bullock
Blog by a secondary school maths teacher (Forest School, London, UK) that aims to provide "maths to the masses," with a preference for illustrations via GeoGebra. Bullock describes his "paranoia [as] rooted in the average person's contemptible indifference
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 The Secret Lives of Numbers
A Java applet histogram exploring the relative popularity and cultural associations of every integer between 0 and one million. Numbers such as 212, 486, 911, 1040, 1492, 1776, 68040, and 90210, for example, occur more frequently than their neighbors
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 Secret Millionaires Club  A Squared Entertainment LLC
Lessons, webisodes, and prime time specials that use reallife situations to teach young people how to succeed in life and in business. See, in particular, the free financial literacy classroom materials available through the Learn and Earn promotion.
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 Secrets of the Beehive  Keith Devlin; Guardian Unlimited Archive
The 4th century geometer Pappus was one of several ancient Greek mathematicians who suspected that the elegant shape of the honeycomb was a result not of an innate beesense of geometric beauty but of nature's efficiency. The repeating pattern of sixsided
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 Secrets of the Fathom Masters  Tim Erickson
"Get your Fathom questions answered here" by a member of Key Curriculum Press' design team that developed the software for data analysis and statistics education. When Erickson needs to write instructions for some procedure using Fathom, he posts them
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 Seedbed  Tom O'Brien, ed.
Throughout the 1980s, Seedbed published articles on "the intellectual growth of children, and teachers' participation therein." Editor Tom O'Brien described the publication as a practical one, "where teachers are the principal authors and where teachers'
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 SEED  Math Puzzles  Schlumberger Excellence In Educational Development (SEED)
Creative puzzles, with solutions, in number sense; arithmetic; probability; algebraic thinking; geometry, spatial reasoning and visualization; topology; logic; combinatorics; and more. Also available in Arabic, Russian, and Chinese.
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 Seeing and Learning Astronomy and Cosmology Through the Lens of Music  Sloan Edward Williams III  YaleNew Haven Teachers Institute
Exploring music, astronomy and cosmology, starting with the historical roots; the Pythagoreans in particular contributed profoundly to the development of Western Music by discovering two facts: first, that the sound caused by the
string depends on the
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 Seeing Math Secondary: Interactives  the Concord Consortium
Seeing Math has developed interactive software Java tools to clarify key mathematical ideas in middle and high school mathematics. Each interactive provides a realtime connection between representations of the mathematics (symbolic, graphical, etc.),
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 Seeing Red  Keith Devlin (Devlin's Angle)
Though it is fashionable to talk about the mind as a computer, a better description is that it is a pattern former/recognizer... The problem facing the computer scientist trying to equip a computer with vision is how to simulate
this pattern creation/recognition
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 Segments of Circles  Math Forum, Ask Dr. Math FAQ
Given partial information about a segment of a circle, how do you compute what you want to know?
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 Selected Internet Calculator Resources  Math Forum
Selected Internet resources for integrating calculators into the math classroom, one of the Math Forum's series of pages dealing with issues in math education. curricular resources (articles, courses, textbooks); graphing calculator resources; online
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 Selected Papers  Louis A. Talman
"An Unfortunate Metaphor" [the assembly line], Notices of the American Mathematical Society, 40 (1993); "Weekly Journal Entries  An Effective Tool for Teaching Mathematics," Using Writing To Teach Mathematics, MAA Notes, No. 16, Mathematical Association
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 The SELECT Math Project  Boston Public Schools
The SELECT (Supporting Engaged Learning by Enhancing Curriculum with Technology) Math Project is a Boston Public Schools resource that features over 200 links to webbased virtual manipulatives and resources that directly support the mathematics curriculum
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 Self Portrait at Age 13: Albrecht Durer 1484  Ralph Martel
A paper illustrated by a PowerPoint slide show to demonstrate how Albrecht Durer used geometry in his art work from the age of thirteen. This paper by Martel is one of a series that he is writing on mathematics and art. Suzanne Alejandre wrote a teaching
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 SelfReference and Apparent SelfReference  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
Various paradoxes, real and imagined, including verbal, logical, and mathematical examples, and links to: Blinking page with errors; Apparent paradox; Set of all subsets; An Impossible Page; Russell's paradox; and An Impossible Machine.
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 Selfsimilarity  Robert L. Devaney; Dept. of Mathematics, Boston University
A section from the paper "Chaos in the Classroom," describing selfsimilarity, with the example of the Sierpinski triangle.
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 SEMAA: Science, Engineering, Mathematics, and Aerospace Academy  NASA's Glenn Research Center; Cuyahoga Community College
Created to expose historically underrepresented youth to activites in the fields of science, engineering, mathematics, and technology, SEMAA offers information about its classes and program as well as links and contact information.
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 Semiregular Tessellations  Totally Tessellated
Color renditions and real examples of the semiregular tessellations. Templates allow you to print renditions of each tessellation suitable for coloring activities.
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 Sending Mathematical Communications Electronically  Dave Rusin
Mathematical ideas sent via email tend to get rapid responses, and allow for precise earmarking of passages needing comment. There is however the problem of communicating the wide array of symbols and diagrams in a medium which should be assumed to use
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