 MathWorld: Eric Weisstein's World of Mathematics  Eric W. Weisstein and Wolfram Research, Inc.
A fulltext 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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 MathWorlds  SimCalc: Simulations for Calculus Learning
MathWorlds enables students to learn through exploration of animated worlds and dynamic graphs. The worlds present moving objects and characters in a variety of settings, such as elevators in a building or duckies on a pond. Manipulable graphs control
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 Math WWW VL: Software  Dept. of Mathematics, Florida State University
Links to software sites for collegelevel mathematics.
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 MathXL  Addison Wesley Longman
A Webbased tutorial system based on Addison Wesley math texts. For PCs running Windows 95, NT, 98, or 2000. MathXL offers practice tests correlated to the chapter tests in your book; personalized study plans, based on your test results, that list the
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 MathXpert: Software to Help You Learn Mathematics
MathXpert helps students learn algebra, trigonometry, and onevariable calculus by supporting their development of stepbystep solutions. For Windows or Windows emulators. Also available from http://www.mathxpert.com/.
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 Mathzone  Angelo Mingarelli, Carleton University
Mathzone features online calculus quizzes and exams, as well as one testing "everyday math." It also offers several downloadable programs, including a Javascript applet about the 3n+1 sequence, and a demo version of software that qualitatively plots polynomials
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 matthen  Matthew Henderson
"Things of interest in maths & science" created by a PhD candidate in Statistical Dialogue Systems who majored in mathematics as an undergraduate. Posts date back to March 2011, and routinely feature Henderson's original animated gifs: "Orbits around
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 Maxima: a GPL CAS based on DOEMACSYMA
Free, opensource computer algebra software. Extensive notes for users and programmers, and a bugreporting system, available here.
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 Maximize Volume of a Box  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about maximizing the volume of a box, such as "Find the formula for the greatest volume box you can make from a sheet of cardboard with differentsized corners cut out of it."
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 Maximizing Cylinder Volume  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about maximizing the volume of a cylinder, such as "We are excited to unveil a new feature this month, Site Map.Find the largest possible volume of a right circular cylinder that is inscribed in a sphere of radius r."
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 MCS Problem of the Month  California State University, East Bay
Calculus, number theory, probability and other collegelevel problems by Dan Jurca and his colleagues in the CSUEast 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 highereducation 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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 METRIC: Mathematics Education Technology Research  Imperial College, London, U.K.
Information about the M.E.T.R.I.C. program, a continuation of the former Transitional Mathematics Project (TMP), with Mathematica activities for a Dynamics course. Articles, papers, and materials for "mathematical microworlds": ODEs and Dynamics. Reviews
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 Midnight Tutor  MidnightTutor.com
Free videos of solved calculus problems. We will also generate new videos and send out hints to anyone who emails a problem to solve@midnighttutor.com.
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 mooculus  Jim Fowler, et al.
Free YouTube lectures and textbook that introduce calculus. With the support of the mathematics department at The Ohio State University, this 15week course designed for selfpaced independent learning appeals to a wide audience  from those who have
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 The Most Common Errors in Undergraduate Mathematics  Eric Schechter
Errors in communication: teacher hostility, student shyness, bad handwriting, not reading directions, loss of invisible parentheses, terms lost inside an ellipsis; Algebra errors: sign errors, everything is additive, everything is commutative, undistributed
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 Mr. Hoffman's Home Page  Jim Hoffman
Assignments, notes, exams and interactive vocabulary quizzes (with answer keys) from Hoffman's own math and twodimensional computer animation high school classes. These materials are based on Saskatchewan Provincial Curriculum, and include Math 9, Math
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 Mr. Kelley's AP Calculus Home Page  Mike Kelley
A teachermade site that allows students to answer middle and high school math questions from people all over the world. Also an archive of past problems of the week, rated by difficulty.
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 Mrs. Cantey  Susan Cantey
Resources for precalculus and calculus, from a teacher at Walnut Hills HS in Cincinnati, Ohio. Advice, information, practice problems, quizzes, and more.
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 mrs. tinashe blanchet  Tinashe Blanchet
Courses, collaborations, and other content by Blanchet, who teaches high school math in Marrero, Louisiana. Freelyaccessible Moodle classes have included International Baccalaureate (IB) Math Studies and Advanced Math/PreCalculus; professional development
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 Mr. Talbot's Mathematics Page  Roger Talbot; Detroit Catholic Central
Problem of the week (Algebra 2, Precalculus and Calculus), solutions to the 1999 AP Calculus BC Exam, and a selection of sample tests, quizzes, worksheets, labs, and links.
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 Mr. Tyler's Math Resources  Mr. Tyler
A collection of Algebra 1 and Calculus math resources, with notes on their use in the classroom. The site is updated frequently and contains various worksheets, activities, PowerPoints, and other math resources.
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 Mudd Math Fun Facts  Francis E. Su; Mathematics Dept., Harvey Mudd College
A site developed as a resource for professors wishing to enrich their courses with mathematical 'fun facts': more than 100 5minute math tidbits that can be used at the beginning of class to get students interested in mathematics. They are best used in
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 Musemath  Bob O'Rourke
Videos on the mathematics and physics of the Western Traditional Music Scale.
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 My Geeky Tutor
Homework help in collegiate math: calculus, algebra, statistics, geometry, trigonometry, quantitative analysis, physics, economics. Support forum, daily solved problems, study guides, and more.
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 My Math Games  MyMathGames.com
Online math games for elementary topics, plus the mean value theorem of calculus.
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 My NMSI Story
Watch clips of U.S. students and teachers speaking about their participation in the National Math and Science Initiative's Advanced Placement Training and Incentive Program (APTIP). Upload your own video narrative about APTIP, which has expanded American
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 National Centre for Excellence in Mathematics and Science Teaching and Learning  University of Limerick
Ireland's NCEMSTL researches, coordinates, supports, develops and implements programmes to enhance Irish science and mathematics teaching and learning at all levels. Read Centre publications and reports; learn about its courses and other events. Register
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 National Curve Bank  Gray, Venit; California State University, Los Angeles
Animation and interaction, and geometric, algebraic, and historical aspects of curves. Topics include Calculus, PreCalculus, History of Math, Limits, and Fractals. Submissions are encouraged.
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 National Math & Science Initiative
This nonprofit organization "facilitates the national scaleup of programs that have a demonstrated impact on math and science education in the United States." Programs include the Training and Incentive Programs, which encourage excellence among teachers
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 NCTM San Diego Sessions on Calculus Reform  The Math Forum
A selection of summaries of presentations from the 74th Annual NCTM Meeting, 2528 April 1996, San Diego, CA: The NSF Math Modeling/Precalculus Reform Project: Functioning in the Real World, by Sheldon P. Gordon and Florence S. Gordon; Derive, Powerpoint
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 NCTM Standards (Standards 2000)  National Council of Teachers of Mathematics (NCTM)
NCTM's Principles and Standards for School Mathematics is the compilation of the lessons learned and experiences gained over the years since the 1989 Standards were released. The site features include: an online version of the Standards (including illustrations,
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 New Mathwright Library  James White; Bluejay Lispware
An Internetbased library of interactive workbooks on topics commonly encountered in undergraduate mathematics, from college algebra and precalculus through multivariable calculus, differential equations, and mathematical modelling. Workbooks, together
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 Newton Basins  David Joyce; Dept. of Mathematics & Computer Science, Clark University
Newton's method for finding solutions to equations leads to some fantastic images when applied to complex functions. This program colors the complex plane according to where an initial guess will eventually take you, and gives each solution a different
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 Newton Papers  University of Cambridge
View and download Isaac Netwon's handwritten papers: his own annotated copy of Principia Mathematica; the socalled "Waste Book," a large notebook that he inherited from his stepfather, and which Newton filled with notes and calculations when forced to
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 Newton, Sir Isaac (Funk & Wagnalls Multimedia Encyclopedia)  Lycos Zone: Mathematics
A short biography of Sir Isaac Newton (16431727), focusing on The Fluxional Method, Optics, and The Principia.
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 North Carolina School of Science and Mathematics (NCSSM) AP Calculus Web Center  John Goebel, Matt Wagers
Available here are postings related to the high school AP calculus program, including a Lesson Center which contains Mathcad® versions of class lectures (Mathcad® 6.0 or later required); Study Aids which provide material useful for AP Calculus exam preparation,
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 Nowhere Monotonic Continuous Function  Michal Wojcik
Proof of the existence of a continuous function f:[0,1]>R that is neither increasing nor decreasing on any subinterval of [0,1]. This proof uses the Baire Category Theorem.
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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 preselected set of resources on given subjects.
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 The Number Empire  Vitalii Vanovschi
Enter a positive integer up to 10^12, press the "Go!" button, and The Number Empire states  in yes/no format  whether you entered a prime number, a Bell number, a Catalan number, or a factorial. The same single click displays the integer written out
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 The Number Warrior  Jason Dyer
Blog by an algebra and calculus teacher. Posts, which date back to January, 2008, have included "The Educational Problem with Teaching Multiplication as Repeated Addition," "Nonlinear lesson design (Giant Ants of Doom)," "The design of mathematical notation,"
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 Numerical Recipes in C: The Art of Scientific Computing  Books OnLine  Press, Teukolsky, Vetterling, Flannery; Cambridge University Press
An online book available in Adobe Acrobat or PostScript formats that outlines the method of organizing a program, and then provides the methodology and (copyrighted) source code in the C programming language for: linear algebraic equations, interpolation
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 Numericana.com  Gérard P. Michon
The online companion of Numericana, this site contains excerpts from Michon's book, including the entire glossary of scientific terms. Browse an index with pithy summaries, browse by popularity, or search nearly two hundred of his "final answers" of readers'
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 The Official Scoring Site of the International Mathematical Olympiad 2001  Wolfram Research
The IMO 2001 competition, for students under the age of 20 who have had no postsecondaryschool education, was held July 114, 2001, in Washington, DC, USA. Each country represented is allowed up to six participants. This site records scores and supplies
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 Oligopoly/Public Firm Model  Elmer G. Wiens; Egwald Web Services Ltd.
An economic model of an oligopolistic industry with a government firm, oligopoly, interactive and online model, with bonus systems for managers of a
public firm. Application of numerical analysis (Gradient and Newton's
methods to solve systems of
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 Olimpíada Brasileira de Matemática  Sociedade Brasileira de Matemática (SBM)
The Olimpíada Brasileira de Matemática (OBM) is a competition open to all students enrolled in Brazil's fundamental or middle studies. Browse or download archived exam problems and solutions dating back to 1997. Read news about olympiads, or the journal
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 One Mathematical Cat, Please! A First Course in Algebra  Carol J.V. Fisher Burns
This is a complete online Algebra I curriculum, along with lessons in geometry, algebra II, and calculus. Over 150 web exercises, all typeset in MathJax and some of which use GeoGebra, with printable randomlygenerated worksheets and solutions, offer
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 Online Calculator  Cody Miller
Online Calculator features include: RPN, unit converter, base conversion, polynomial solver, equation solver, complex number support, and decimal to fraction conversion. Site includes reference sheets for algebra, geometry, trigonometry, and calculus
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 Online Class: Internet Education Projects  TBT International, Inc.
A model project to show teachers how to integrate technology into the classroom. Designed so that live, interactive content will draw out technical skills. Subscribe by classroom to receive a printed teachers' resource guide; materials delivered free
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 Online Function Grapher  David Bloom
Interactively plot trigonometric functions, inverse and hyperbolic trigonometric functions, logarithm and natural logarithm (ln), square root, and other special functions such as min, max, absolute value.
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