 Math Mistakes  Michael Pershan, editor
Compilation, analysis, and discussion of the mathematical errors that students make. Pershan, who teaches high school math in New York City, has posted a new error on this blog every day since June, 2012.
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 Math Movie Network  Shawn Avery
This collection of studentmade videos stars kids explaining math procedures and concepts. Formerly known as "the Student Made Math Movie" wiki, the selfproclaimed "Home of Student Made Math Movies" features a section labeled "practice" embedded with
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 Math Mutation  Erik Seligman
These "show notes" accompany a short podcast of the same name that explores "fun, interesting, or just plain weird corners of mathematics that you probably didn't hear in school." Posts, which date back to December, 2011, have included "Flat People Give
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 MathNotations  David Marain
Math investigations, challenges, problems of the day, and standardized test practice that emphasize the development of conceptual understanding in mathematics. Marain's blog, which dates back December of 2006, also features dialogue on issues in mathematics
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 Mathochism  AK Whitney
"One woman's attempt to revisit the math that plagued her." Whitney enrolled in the subject 25 years after high school, where she "barely passed algebra and actually flunked geometry and calculus." Writing with candor and selfdoubt ("This is the beginning
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 Math  PhET Simulations  University of Colorado
Dozens of free interactive, researchbased simulations of mathematical phenomena, from arithmetic, estimation, graphing lines, and Plinko probability, to projectile motion, wave on a string, Fourier (making waves), and blackbody spectrum. PhET's Java
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 Math Problems Collection  Peter Chrenko
Solve math word problems and computational exercises in algebra, arithmetic, basic functions, combinatorics, geometry (3D), planimetry (twodimensional geometry), statistics, and units. Drag the slider bars to increase or decrease the difficulty, range
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 mathproject  Norbert Steffen
Online textbook with occasional interactive options, focusing (so far) on functions, sequences, continuity, differential and integral calculus, and linear algebra.
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 MathQUEST/MathVote  Zullo, Holly; and Cline, Kelly; Carroll College
Question libraries and other resources for classroom voting in mathematics, also known as ConcepTests for Peer Instruction or "Clicker Questions." Developed with funding from the National Science Foundation (NSF), the two projects "MathQUEST: Math Questions
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 Math Resources by Subject (Selected)  the Math Forum
Recommended resources by subject for K12 students (Arithmetic, Algebra, Geometry, PreCalculus, Calculus, Probability & Statistics, Discrete Math); College students (Geometry, PreCalculus, Calculus, Probability & Statistics, Discrete Math, Linear
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 Math Right Now
An interactive mathematics website which features realtime multimedia solutions and companion lessons for each question in a large database. Create your own individualized problem sets and practice exams from among topics in the areas of algebra, geometry,
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 Maths and Physics Notes  Paul Smith
Maths and physics notes for GCSE, IGCSE, O level, A level, IB and university students, as compiled by a London tutor.
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 Mathsay Math Software  Golden Oct. Computer Network Service Co.,Ltd.
Mathematics software designed for students and teachers from grades 7 through college prep to be useful in teaching functions, algebraic equations, coordinate geometry, 3D geometry, and precalculus. In English and Chinese.
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 Math  Science Search
Science Search is a directory for scientific topics, including this subsection of Math. Individual entries include description, category, and a user rating of the site.
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 Mathscours  Didier Bonnel
Des cours, des exercices corrigés, des questionnaire à choix multiple, des annales, et des vidéos en algèbre, fonctions, probabilité et statistiques, géométrie, calculs, et plus.
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 Maths: Cours et Exercices  MathsFaciles
Online study program in French: "Programme pour réviser les mathématiques sur internet, avec à la disposition des élèves des milliers de ressources pédagogiques en maths (cours, exercices, qcm, vidéos...). Les professeurs possèdent aussi leur accès spécial
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 Mathscribe
Mathscribe is free software for graphing, modeling, equation solving, formula editing, etc. for algebra, trigonometry, and precalculus students. It calculates and graphs elementary functions (ones formed from polynomial, rational, algebraic, trigonometric,
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 Math Seven and Eight  Jeff LeMieux
Oak Harbor (WA) teacher Jeff LeMieux' hyperlinked lesson plans and problems for his seventh and eighth graders, who use Glencoe's Mathematics Applications and Connections textbook. Also, links to Mr. LeMieux' old lessons and lessons at Microsoft Encarta
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 The Maths Faculty  James Harris, University of Leeds
Free podcasted lectures of UK academics speaking on topics from the UK high school curriculum and major exam boards (AQA, Edexcel, and OCR). Created by the University of Leeds with funding from the Higher Education Funding Council of England.
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 MathsFiles  Mike Hadden
Interactive Excel spreadsheets using macros, Autograph software files, and other resources for maths teachers and students.
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 Maths Online  Chris Vick
Online maths tuition, via a private chatroom. Tutoring requires no special computer or browser components, with fees payable after each lesson, or in advance by block. Free calculator available on the site, as well as a currency converter.
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 Mathsplain  András Mosóczi
"Plainly simple" Flash tutorials to click through at your own pace: precalculus, singlevariable calculus, multivariable calculus, linear algebra, and probability.
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 Maths POWER Tutoring Software Programs  Maths POWER
From Australia: Maths, English and Science software programs designed and created by qualified teachers, intended for athome use. The website includes explanation of features, FAQs, testimonials and free assessments.
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 Math Teacher Mambo  Shireen Dadmehr
Blog by a veteran high school teacher in Texas. Posts, which date back to January, 2005, have included "TAKS TAKS TAKS," "English Practice in Math Class," "Fraction Song," "Reviewing Angst," "Spaghetti Sine Curves," "Blocks & Pieces," "Memory Wheel,"
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 Math TODAY  USA TODAY and Texas Instruments (TI)
The alliance between Texas Instruments and USA TODAY Education provides teachers with activities that draw on USA Today's newspaper articles and TI graphing calculators to explore topics in algebra, geometry, precalculus, calculus, and statistics. The
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 Math Tools PreCalculus  Math Forum
A community library of software tools for precalculus students and their teachers. PreCalculus is one section in the Math Forum's Math Tools digital library of software for computers, calculators, PDAs, and other handheld devices, with related lesson
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 Math Trivia  FunTrivia.com
Online multiplechoice (MC) quizzes covering topics in algebra, geometry, statistics and probability, calculus, measurements, and more. Register to record your high scores on the site; Find out how many others have played a given game, and how they rate
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 The Math Tutor Center  Addison Wesley Longman, Inc.
A service free for students who purchase a new Addison Wesley Longman math textbook included on the list of eligible textbooks and are enrolled in developmental, precalculus, calculus and introductory statistics courses. Qualified math instructors tutor
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 Math Tutor DVD  Jason Gibson
Stepbystep, exampledriven DVDs of narrated whiteboard presentations that teach mathematics concepts from counting through differential equations.
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 Math Tutors
This family promises complete, stepbystep solutions to your emailed math problems.
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 Math Videos  James Sousa
Thousands of screencast lessons (look for a yellow background) and examples (grid paper), most ten minutes or shorter, all enlivened with narration and a highlighting pointer: arithmetic, algebra, geometry, trigonometry, calculus, linear algebra, differential
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 Math Vids  SchoolVids, LLC
Free educational videos on mathematical topics. Choose the teacher who most fits your learning style. A premium service is available that offers an adfree website, lesson resources, fullscreen videos, and NCTM standards indexing.
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 Math Warehouse  Vernon Morris
Interactive programs that allow users to explore math concepts; a set of freely available worksheets for teachers; math store with books, puzzles, and games; and a newsletter. Covers a range of topics including linear equations, systems of equations,
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 MathWare Ltd.
Software and books for algebra, geometry and calculus: Derive, MathPert, Scientific Notebook, Cyclone; books for use with the TI Graphing Calculators, and a book and CD for Mathematica. Also an Interactive Math Dictionary on CDROM with biographical entries,
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 Mathwise: A computerbased learning package for mathematics  UK Mathematics Courseware Consortium
A software package that provides an integrated learning environment for teaching undergraduate mathematics, comprising mathematical and application modules, reference material, assessments and resource tools. Each module is based around a topic, with
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 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 levelappropriate style.
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 Math Worksheets
Free worksheets for practicing arithmetic, geometry, prealgebra, and algebra, accompanied by written explanations and instructional videos. Each worksheet comes with an answer sheet; select from a range of difficulty levels.
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 Math Worksheets Center
Thousands of teachermade K12 math worksheets, lessons, homework assignments, quizzes, and tip sheets. Browse by grade level or student age; each math topic links to an index of the remedial math worksheets that point up the skills needed to get to that
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 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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 MathWorld Interactive  Carolynn S. Mortensen
Openended word problems and some answers from this nowdefunct project. MathWorld began as MathMagic FidoNet in 1991, and was dedicated to helping educators and parents motivate their students to solve openended word problems, communicate mathematically,
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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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 Mathy McMatherson  Daniel Schneider
Blog by a public high school teacher in Tucson, Arizona, who graduated from the University of Arizona Secondary Mathematics Education Program. Posts, which date back to July, 2011, have included "Teaching as Creation," "Fixing Bugs Part 2: Algebra &
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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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 McSquared  Audrey McLaren
Blog of "a teacher's realtime journey into Web 2.0" for "anyone who loves to teach, loves technology but feels easily overwhelmed by it, nevertheless feels compelled to learn how to use it, needs things explained real slow like, is not afraid to ask
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 Media4Math
Free algebra and geometry videos, PowerPoint presentations, Promethean Flipcharts, critical thinking activities, workedout examples, and other media resources. An initiative of Emmy awardwinner Edward de Leon, executive producer of "Greatest Inventions
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 Median  Don Steward
Blog by a maths teacher influenced by Hans Freudenthal. A fan of unicase, Steward teaches 1016 yearolds in Shropshire (UK). His posts, which date back to November, 2007, have included "loooooong multiplication  grid method," "two reversal problems,"
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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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 MiLearn High School Course Complements
Curriculumbased high school level math resources in an interactive, "concept, example, application" web design. Courses contain over 500 web pages of stepby step examples and solutions; free demos are available on the site. MiLearn also provides consulting
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