 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 Movement  Tim Chartier
Blog that focuses on mathematics and the "progress or movement" that occurs in Chartier's teaching, research, writing, and performing. An Associate Professor of Mathematics at Davidson College, Chartier has trained at Le Centre du Silence mime school
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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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 The Math Nook  Adrienne Shlagbaum
Blog by a New Jersey teacher of fifth and sixth grade math who also has math enrichment groups for grades 14. Posts, which date back to January, 2013, have included "Homework Review — A Work in Progress," "It's a Match! Fractions, Decimals, and
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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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 Math Online  SalemKeiser Public Schools, Oregon
SalemKeizer Public Schools of Salem, Oregon, designed this collection of daily math problems to help students in the third, fifth, and eighth grades prepare for the State of Oregon CIM Benchmark exams. Student exercises are organized by grade level,
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 Math On The Internet  Buffalo FreeNet Community & NonProfit Pages
K12 math problems and solutions posted weekly between 199698, at 5 levels of difficulty, with an archive of solutions for 1996 and links to related sites.
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 Math Open Reference  John Page
Page's free online geometry textbook provides interactive animations of geometry topics to enliven the teaching process and give students a deeper level of comprehension. With a glossary, quizzes, simulations such as "how to read a protractor," a graphing
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 MathPickle  Gordon Hamilton
Free videos that pose "rich math gems": Fibonacci Mutant Bunnies, Amoeba Squares, Kajitsu, Locker Room Prank, Area and Perimeter of Animals, Ballast Puzzles, and more. Select a grade band for PDF solutions, presentations in PowerPoint and Keynote formats,
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 Math Planet
Hundreds of free video lessons, exercises, and examples to solve. Get help with prealgebra, algebra, or geometry by posting questions to Math Planet's forums. See also the downloads of SAT and ACT sample tests. The Swedish nonprofit organization behind
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 Math Planet  ThinkQuest 1998
A site for high school students featuring algebra, geometry, and geometry concepts glossaries; crash courses on basic Algebra and Geometry; an advanced course on Algebra and Trigonometry; a customizable lesson plan based on individual level; an SAT and
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 Math Practice Programs  Alan Tubman
Written to supplement the materials available in the author's GED classroom, these DOS and Windows/NT Math Modules for Middle School and GED Preparation Classes comprise about a hundred drill programs ranging from simple operations with whole numbers
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 Math  PrimaryGames.com
Games and drills for very young students: Two Minute Warning (drills addition and subtraction); One Little Ball (numbers 15); Sammy's Shapes (geometric shapes); Take It Away (subtraction); Add 'em Up (addition).
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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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 Math Projects  Curriculum Research & Development Group (CRDG), Univ. of Hawaii
Innovative curricula that are based on research, promote interaction among students, match NCTM standards, support students' construction of knowledge, develop ideas over time, and involve professional development and support services. Mathematics projects
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 MathRealm  Cognitive Technologies Corporation
A mathematics learning environment, with lessons, learning tools, and exploration activities, available on CDROM or online through Shockwave. Includes material for learning fractions, prealgebra, data analysis, algebra, geometry, and trigonometry. Educators
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 Math Recipes  Michelle Chapman
Video instruction and practice of math concepts for middle school students. Free 30 day trial; paid subscription for longer use.
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 Maths4Me  Philip Isham
Tutorials covering the main topics of school mathematics using simple English words and pictures. It is intended as an alternative and a supplement to the more academic and structured methods.
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 Maths and More Maths  Dimitris Poimenidis
Interactive applets at the high school level, on geometric and algebraic topics. All are available in Greek; many in English as well.
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 Mathsational  Jennifer Abel
Blog by a math teacher at a suburban public high school in Lancaster, PA. Posts, which date back to June, 2015, have included "My first ever conference presentation & more on SBG"; "MTBoS Love — A Plethora of Activity Resources"; "Simplifying,
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 Maths au CM / Math Exercises for 5th Graders  Colleu, Patissier
Questions and answers: Numbers and Calculations: natural numbers, fractions, decimals, proportion; Geometry; Measurement. Colleu describes his teaching system using flash cards, and provides a parallel grammar site. In French and English.
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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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 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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 A Maths Dictionary For Kids  Jenny Eather
An animated, interactive dictionary for students which explains over 400 common mathematical terms in simple language. Includes definitions, animated examples, interactive activities, and 200 printable maths charts suitable for interactive whiteboards,
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 Maths Doctor  Macmillan Publishers Limited
This maths tuition company, based out of the University of Sussex (UK), arranges tutoring for private, onetoone maths instruction. It also freely offers hundreds of videos and accompanying worksheets for GCSE and ALevel maths.
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 The Maths File Game Show  BBC Online
Interactive, animated math games (require Shockwave). Four sections include: Number, Data Handling, Algebra, and Shape, Space, and Measure. A games wheel offers games for students of different ability levels. Printable worksheets are also provided, together
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 Maths Games and Resources  Adrian Bruce
Adrian Bruce, an Australian teacher, offers a variety of resources that he has developed to use with his students. The math resources are organized under these topics: Symmetry; Facts to 10; Multiplication Jump; Multiplication Bingo; 3d Shapes; Decimals;
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 Maths Is Fun  Rod Pierce, mathsisfun.com
Math revision (review) pages, games, puzzles, and offline activities for age 11 through college algebra. A discussion forum and a newsletter are also available. The Illustrated Math Dictionary links definitions to further resources on the site. Maths
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 Mathslessons.co.uk  Alan and Cass Jackson
Flash tutorials and tests on number, algebra, shape, and data, suitable for GCSE revision. Also, worksheets and revision guides, a freestanding calculator, interactive math games, and resources.
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 Maths Magic: OutcomesBased Maths Games  Claudine du Plessis, Maths Magic
Educational mathematics games for the classroom.
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 Mathsman  Mark Longson
Questions with answers and explanations, on a variety of topics. Starts with the foundations of the topic and progresses to a mastery quiz. Small fee charged for the access password.
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 Maths  Martin John Baker, EuclideanSpace
Originally intended to give enough maths information to allow physical objects to be simulated by a computer program, these pages now cover a broader range of mathematical topics. The pages that get the most hits on the site are those concerned with 3D
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 MathsMaster.Org  Will Emeny
Free online instructional videos and other teaching resources that balance conceptual understanding and learning procedures.
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 MathsNet  Bryan Dye
MathsNet is a collection of pages about mathematics education, information technology, the Internet, and "some straightforward 'sums'." Tips and downloads for logo, spreadsheets and graphs, winlogo, excel, omnigraph, and graphing calculators such as the
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 Math software demos, freeware, shareware for IBM PCs  Math Forum
DYSyst, Euklid, Fractal Grafics, FractInt, IBP Math tools (unit conversions), Penrose, Polyray, Persistence of Vision (POVRay). Download zipped demos from the Math Forum archives. Read the Index for descriptions of these programs.
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 MathsOnline  King's College
MathsOnline, from New Zealand, covers the entire mathematics curriculum for secondary school students from Year 8 (Year 9 in NZ) to Year 12 (Year 13 in
NZ). The site splits each year level into 50 topics and contains notes, examples, tests, exams, quizzes,
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 MathSource  Wolfram Research
An extensive electronic library of Mathematica material and notebooks, with over 100,000 pages of immediately accessible Mathematica programs, documents, examples, and more. You may browse the archive or search by author, title, keyword, or item number.
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 MathSphere  U.K.
A site where teachers or parents can download (in PDF format), print out, and photocopy over 1000 mathematics worksheets (grouped into modules) for children ages 512 or children with special needs. (More than 100 sample pages are available free of charge.)
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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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 MathStar New Mexico  New Mexico State University
A professional development program for math teachers that incorporates the principles of Japanese lesson study. Watch QuickTime video clips of lesson study; download PDFs of research lessons on number and operations, algebra, geometry, measurement, and
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 Math Stuff  Strategic Education Research Partnership
Makers of Tools for Sensemaking; the 5 × 8 card, an observation protocol; AlgebraByExample, sets of algebra problems that prompt students to analyze and explain errors in wrongly worked examples; and poster problems for sixth and seventh graders,
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 Math Talks  Fawn Nguyen
Number talks (NTs) by Nguyen's middle school students. Several student observations follow each mental math prompt, which include "Estimate 8235 divided by 71"; "Would you rather....?" and "Are there more inches in a mile or seconds in a day?" and "Which
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 Math Teacher Link  Professional Development Consortium for Mathematics Teachers
A website designed to deliver professional development opportunities and classroom resources to teachers of mathematics, statistics, and related subjects at the high school and lower division college levels. Classroom resources include links to sites
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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 Teaching Videos  Colleen King
Macromedia Flash "videos" of problems being solved; students are invited to solve problems themselves following the given example, and then to make up and submit problems of their own. New videos appear each week. The goal of this program is to encourage
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 Math Thinking  David Wees
"Sharing thinking about math from students": a collection of work by students that teachers have not taught them explicitly how to do. Wees elaborates that "the idea or technique a student uses does not itself have to be completely original, just new
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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 Tour  ThinkQuest 1998
A site designed to be entertaining and to bring together people of all ages with a wide range of math skills to interact and explore mathematics, featuring original math problems, humorous proofs of theorems, funny stories, and interesting facts about
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 Math Towers  Dr. Geoff Roulet, Queen's University
Mathtowers.ca is a website where groups of Grades 7 and 8 students can collaboratively explore openended mathematics problems. Students are presented with a problem context and provided with a laboratory, interactive tools and recording space to support
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