- Mathwords: Terms and Formulas from Algebra I to Calculus - Bruce Simmons
A comprehensive listing of definitions and examples for words used in high school and early college math. The entries are written in a level-appropriate style.
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- MathWorld: Eric Weisstein's World of Mathematics - Eric W. Weisstein and Wolfram Research, Inc.
A full-text searchable, comprehensive alphabetical encyclopedia of math terms, equations, and derivations, with explanations, examples, references, and much more. Everything from Abacus to Zsigmondy Theorem. (Formerly the CRC Concise Encyclopedia of Mathematics,
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- Matrices Help Relationships - William A. McWorter Jr.
This page uses examples to illustrate the use of matrices in solving problems of relations between variables, and continues with an "airline" problem involving networks, also solvable with matrices. The page is hosted by Alexander Bogomolny's Interactive
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- Maxima: a GPL CAS based on DOE-MACSYMA
Free, open-source computer algebra software. Extensive notes for users and programmers, and a bug-reporting system, available here.
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- MCS Problem of the Month - California State University, East Bay
Calculus, number theory, probability and other college-level problems by Dan Jurca and his colleagues in the CSU-East Bay Math and Computer Science Department. The archive of POMs, with solutions, dates back to 1995.
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- MERLOT Mathematics Portal - MERLOT (Multimedia Educational Resource for Learning and Online Teaching)
Free higher-education online teaching materials, and a user community centered around those materials. Free registration allows users to create, contribute, collect, and comment on resources, or become a peer reviewer or guest speaker. The site offers
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- Middle-School Math Through Applications Project (MMAP) - Institute for Research on Learning (IRL)
Developers of curriculum materials and software designed to make math relevant, accessible and successful for middle-school students. While working on real-world multidisciplinary design problems, students grapple with mathematics from basic skills to
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- Molecular Information Theory and the Theory of Molecular Machines - Tom Schneider
Introduction to the use of information theory in studying molecular biology. The author is part of the Molecular Information Theory Group, a section of the Laboratory of Computational and Experimental Biology at the National Institutes of Health in Frederick,
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- Monopoly Dollars and Sense - Ivars Peterson (MathLand)
The same rules underlie all of the varied editions of Monopoly, which feature themes ranging from golf to your favorite city. It's possible to describe the game in terms of a mathematical construction called a Markov chain, named for the Russian mathematician
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- Multicultural Math Fair - Suzanne Alejandre, Frisbie Middle School
Twenty-nine percent of Frisbie's student population is Limited English Proficient; Arabic, Cambodian, Chinese, German, Indonesian, Korean, Philipino, Polish, Portuguese, Romanian, Samoan, Spanish, Taiwanese, Vietnamese, and Urdu are represented. In 1993-94
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- Musing Mathematically - Nat Banting
Thoughts from a high school mathematics teacher on the teaching of mathematics, and the learning of mathematics. Posts, which date back to May, 2011, have included "Playing with Mean, Median & Mode," "Attaching a 'Why' to the 'How," "The Mathematics
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- Myronn Hlynka's Queuing Theory Page - Dr. Myron Hlynka
Provides general information and links to books, researchers, software,
humour, and applications of queuing theory/ queues/wait times.
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- Nautilus - Nautilus Ventures LLC
An online and print monthly dedicated "to science and its endless connections to our lives." Each issue contains chapters — essays, investigative reports, blogs, fiction writing, games, videos, graphic stories, and other original content —
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- Neil J. A. Sloane
Neil Sloane's research ranges far and wide and includes coding theory, sphere packing, lattices and quadratic forms, packing lines, and planes, spherical codes and designs, quantizing, geometry, combinatorics, the design of experiments, integer sequences,
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- Nim - Doug Ensley, Shippensburg University
Play online: two people play with several piles of stones. On each move a player
removes as many stones as he or she would like, but forms only one pile. The player who takes the last stone wins.
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- (Not) Tiling a Triangle of Dots - Don West, Department of Mathematics, SUNY Plattsburgh
A triangular array of dots can never be tiled by three-in-line tiles, and
can be tiled by three-in-a-triangle tiles only if the size of the array is
congruent to 0, 2, 9, or 11 (mod 12). The author gives an elementary proof of these two results, not
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- NSDL Middle School Portal: Math Pathway - NSDL; the Ohio State University
A middle school portal into NSDL's math resources, browsable by topic, or choose a pre-selected set of resources on given subjects.
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- The Number of Latin Rectangles [PDF] - Peter Doyle
A paper that shows how to generate an expression for the number of k-line Latin rectangles for any k. The computational complexity of the resulting expression, as measured by the number of additions and multiplications required to evaluate it, is on the
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- Numberplay - The New York Times
Mathematical, logical and scientific puzzles, with solution "recaps." The posts, by Gary Antonick and Pradeep Mutalik, have included "Surreal Hat Tricks," "The Puzzles of Pickover," "Prime Rib at Hogwarts," "Nim for (a) Change," "Phi - The Magic and the
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- On-line Dictionary of Combinatorics - Joe Fields
An on-line dictionary of combinatorics by a doctoral student at the University of Chicago. The dictionary is navigable by letters of the alphabet, and contains a few illustrations. Entries range from Abelian to Zorn's Lemma, and include several resources
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- OpenMathText.org - David A. Santos, Alain Schremmer
OpenMathText.org is a depository of free, downloadable texts and is primarily dedicated to the specification, development, and dissemination of free, editable and downloadable mathematical texts aimed, mainly, at "just plain folk." OMTo invites registrants
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- Other Maths - Jon Perry
Notes, applets, and proofs on a variety of open problems and conjectures: roots of x^p, highest power of 2 that divides ab + bc + ca, a prime product paradox, consecutive integers, (n + 1)!, Collatz, n-secting a line, the first lower digit, Fibonacci,
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- PAX Puzzle - PAX Puzzle
Wooden puzzles, rope puzzles, puzzles boxes, and board games for sale. Recommendations and gift sets available.
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- PBS Teachers: Math - PBS Teachers
The Public Broadcasting System's Math Service, combining computing and telecommunications technologies to offer interactive data services and interactive video and voice services for education based on the NCTM Standards. The site features: resources,
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- Peanut Software for Windows - Rick Parris
Abstracts and links for downloading free mathematics software: Wingeom (high-precision geometric constructions); Winplot (general-purpose plotting utility); Winstats (scatter plots, curve fitting, histograms, statistical data, and standard theoretical
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- Peter Ash's Thoughts on Math and Education - Peter Ash
Musings on doing and teaching mathematics, book reviews, and math problems both elementary and advanced from the creator of Cambridge Math Learning. Blog posts, which date back to August of 2007, include "Very Proper Fractions"; "Physical Models for Non-Euclidean
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- Peter Doyle - Mathematics, Univ. of California at San Diego
Advanced tutorials, proofs and papers, mostly statistics, probability, geometry, and graph theory, but with examples from other mathematics areas as well. Don't miss Dr. Doyle's Flip Flops.
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- Powell's Books
Located in Portland, Oregon, USA; the largest independent bookseller in the United States, specializing in technical books and new, used, hard-to-find, and antiquarian titles. An extensive subject and keyword list is available - search database of titles,
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- Powersums, Fermat, Waring; Quotes, History... - Nico F. Benschop
Links to papers on the ideas of Fermat, Waring, Goldbach, Cantor, Hensel, Hasse-Minkowski, and Selmer, and the following mathematical concepts: semigroups, sequential logic synthesis, cubic roots, and state machines and their sequential closure. With
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- PreCalculus Problem of the Week - Math Forum
Math problems for students who had finished studying topics commonly covered in first-year algebra and high school geometry. From 2002 to 2003, problems involved probability, statistics, discrete math, and trigonometry. The goal was to challenge students
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- Principles and Practice of Constraint Programming: Conferences - Department of Computing Science, Univ. of Alberta, B.C.
Links to previous and future conferences concerned with all aspects of computing with constraints including: algorithms, applications, environments, languages, models, systems. Contributions are welcome from any discipline concerned with constraints,
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- Problem of the Week - Elgin Johnston, Department of Mathematics, Iowa State University of Science and Technology
Download PDFs of challenging problems in number theory, abstract algebra, graph theory, and other topics every Monday. Intended for undergraduate students enrolled at Iowa State University: "Solvers of each week's problem will be listed on the Problem
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- Problem of the Week - Pavel Belik, Augsburg College
Weekly challenges, posted for undergraduates at Augsburg College, that run the gamut from number theory to geometry and beyond.
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- Problems in Topological Graph Theory - Dan Archdeacon
An ongoing list of open questions in topological graph theory, to which the author invites contributions. Classical questions on genus; coloring graphs and maps; drawings and crossings; paths, cycles, and matchings; symmetries; locally planar embeddings;
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- Problems of the Week - Math Forum @ Drexel
Our goal with the Problems of the Week is to engage students in non-routine, constructed-response mathematics investigations that integrate writing with problem solving in the math classroom. In addition to the Current PoWs and the Problems of the Week
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- Professional Development Programs for Grade K-12 Teachers of Mathematics - The State University of New Jersey - Rutgers
Read about and apply for summer institutes such as Institutes for New Teachers of Mathematics and Science, Helping All Students Succeed in Grades 7-12 Mathematics, the Leadership Program in Discrete Mathematics, and the DIMACS Connect Institute; conferences
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- The Progress Report - Dan Lemay
A web log where the author shares successes, concerns, and commentary about teaching math to high school students.
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- Project Welcome (Web Educator's Library Collection of Mathematical Explorations) - MAA (Mathematical Association of America)
Interactive mathematical programs in a newly developed, Java-based interface.
Download online or offline versions of the player. Twenty lessons, with summaries, include "Best Linear Fit," "Limits of Functions," "Piecewise Functions," "Nonlinear Equations,"
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- Puzzles - Martin Watson
Blogs, comments, musings, design sketches, and photographs of mechanical puzzles by an avid collector and craftsman. Puzzle news, the author's own burrs (Watson's wormhole, digigrams, Dutch cubist), in-depth explorations of manipulative puzzles (Puzzles
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- The Puzzle TOAD - Tom Bohman, Oleg Pikhurko, Alan Frieze, and Danny Sleator, School of Computer Science, Carnegie Mellon University
Send the authors your solutions to their challenging graph theory, number theory, geometry, discrete mathematics, logic, and other puzzles. Re-visit periodically to see the latest question, and download PDFs of solutions of past problems.
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- Quandaries and Queries (Math Central) - Dept. of Mathematics and Statistics, University of Regina, Saskatchewan, Canada
A math Question and Answer area for K-12 students and teachers, with searchable archives of past questions and answers.
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- Query Interface to the Contents of the Mathematics Archives - University of Tennessee, Knoxville (UTK)
Search software, abstracts and reviews; teaching materials, etc. by keyword.
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- Random Structures and Algorithms - John Wiley & Sons, Inc.
A journal that publishes results concerning random graphs, hypergraphs, matroids, trees, mappings, permutations, matrices, sets and orders, as well as stochastic graph processes and networks, with particular emphasis on the use of probabilistic methods
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- Rectilinear Geometry (The Geometry Junkyard) - David Eppstein, Theory Group, ICS, UC Irvine
An extensive annotated list of links to material on geometric problems defined on squares and rectangles, higher dimensional boxes, cubes, and hypercubes, right triangles and other right-angled figures, and "taxicab geometry" in which distances are measured
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- Revathi Narasimhan - Department of Mathematics, Kean University
College Math, College Algebra, and Calculus course resources and links include Narasimhan's own Interactive Calculus tutorial, which requires the LiveMath plug-in. See also Using Excel in Finite Math and Applied Calculus, freely downloadable Excel workbooks
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- The Roman Press, Inc. - Steven Roman
Home page of a California mathematics professor, including research articles, books and textbooks, and software.
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- Samuel Arbesman
Research and writings by the author of The Half-Life of Facts. As an applied mathematician and network scientist, Arbesman's delves into the science of science, nature of productivity and prosocial behavior within cities, the structure and function of
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- Science and Math Initiatives (SAMI)
A database/clearinghouse of resources, funding, and curriculum for rural math and science teachers. List, search by title or description, or browse math resources by category. Originally a project of the Boulder Valley School District, Boulder, Colorado,
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- Science News for Kids - Science Service
Science articles written for kids, along with activities for kids to try on their own and ways for kids to comment, ask questions, or submit their own work through the site. Also includes: brain teasers and Java-based games; science fiction discussions
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- Search Ask Dr. Math Archives - The Math Forum
Search by keyword K-12 math questions answered by volunteer 'math doctors' in the U.S. and abroad.
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