 Learn With Trek  NECTAR Foundation
Learn With Trek develops and markets curriculumbased mathematics software, developed by teachers, for grades K12. Each program uses engaging interactive technology to help students develop their math skills. Some products are designed as remediation
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 LearnX.com  Learning Express
Practice tests (e.g. the New York State 4th Grade Math Test) to download in PDF format; search for math or mathematics to find books to buy; browse math skillbuilding books.
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 Leigh Nataro  YouTube  Leigh Nataro
Brief narrated screencasts for algebra, geometry, AP Statistics, and other high school math subjects, often using Fathom software and TINSpire technology.
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 Le site des maths à petites doses  SaintMartin Arnaud
Supplementary information and explanations of various mathematical topics, often illustrated with figures and JavaScript, as well as some sample problems and multiplechoice quizzes. In French.
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 Les Mathématiques  Gilles G. Jobin, Projet Diderot
Web resources, activities, lessons and tutorials for secondarylevel mathematics. Illustrated geometry theorems, with extensive use of the software package the Geometer's Sketchpad. Puzzles and games; algebra problems and adult education. Activités:
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 Lessons and Curriculum  MSTE, University of Illinois at UrbanaChampaign (UIUC)
Browse lessons predominantly for middle and high school students, from the Office for Mathematics, Science, and Technology Education (MSTE) and from other sources.
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 LessonSketch  The Regents of the University of Michigan
A suite of animated sketches of geometry and algebra instruction, and forum for ongoing conversations about mathematics instruction, for practicebased professional development of secondary mathematics teachers. LessonSketch "supports the creation, examination,
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 LessonSnips  LessonSnips
Free lesson plans, worksheets, and activities.
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 Let's Play Math!  Denise Gaskins
"As a homeschool mom who loves math, I want to help other homeschoolers see the variety and richness of the subject.... I hope this blog will be a place where we can play around with ideas about learning, teaching, and understanding math. (For me, it
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 A Level Mathematics Resource Site  Frederick Koh
Solved problem sets, summary handouts, and examination advice for A level Math students from a tutor with twelve years of teaching experience.
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 The Lial/Hornsby Algebra Series Web Site  Addison Wesley Longman, Inc.
A site supporting the Lial/Hornsby Algebra series with additional practice, quizzes, tutorials, exercises, and information about the textbook supplements. For every chapter of each textbook, the site provides a glossary; InterAct plugin tutorial exercises;
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 Library of Math  David A. Smith
Definitions, comments, examples, propositions, and proofs on Business Algebra, Business Calculus, Calculus I, Calculus III, Euclidean Geometry, Financial Mathematics, Group Theory, and Trigonometry. The Library of Math website was designed to be a "browserquiet"
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 Library Video Company
Library Video Company offers a searchable, browseable catalog of video and CDROM products for mathematics instruction on the K12 level, from addition to variables. This resource for primary and high school math educators looking for curriculum enhancers
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 l'île des mathématiques  Tom Pascal
"L'île des mathématiques propose des cours et des exercices de maths et de
physique.
Il est possible de télécharger les nombreuses fiches.
Aussi bien pour les élèves que pour les professeurs de collège et de lycée.
Des forums gratuits d'entraide sont
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 Locker Problem  Suzanne Alejandre
A classroom activity (also called 1000 Lockers) aligned to the NCTM and California Standards, to be explored through the use of manipulatives and a ClarisWorks spreadsheet. Students then look for patterns and write the answer algebraically. The problem:
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 Logo in Mathematics Education  Don Beaty
Sections introducting Logo and its use in the classroom, as well as Illinois Learning Goals (state standards), and a series of juniorhigh level lessons aligned to those standards.
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 Logotron Educational Software
A U.K.based division of Addison Wesley Longman, Logotron publishes educational software for schools in numerous subjects, including mathematics, datahandling, multimedia, internet, earlylearning, and crosscurriculum. All are tied to key stages where
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 Longer Chains of Reason (Pattern Based Reason)  Alan Selby
About mathematical induction. Rules that say that when a first situation occurs, so should a second, are called implication rules. Implication rules can be linked together, one after another. A ladderbased story illustrates the underlying idea, called
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 Lsquared  Laura Shears
Educational Flash and other software to "help facilitate both necessary basic skills as well as play to figure out concepts" so that students "learn how to think about math instead of memorizing procedures": algebra, arithmetic, art, demonstration tools
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 M^3 (Making Math Meaningful)  Mary Bourassa
Blog by the Director of Ontario Association for Mathematics Education (OAME). Posts by this winner of the NCTM Future Leaders Award date back to April, 2013, and have included "Parabolic Art," "Day 7," "Completing the Square with Algebra Tiles," "MFM2P
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 Macalester College Problem of the Week  Stan Wagon; The Math Forum
Stan Wagon, a professor in the Mathematics and Computer Science Department at Macalester College, poses a mathematics problem to his students every week. The problems are meant to be accessible to firstyear college students, so very little background
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 Mad Maths  Philippe Chevanne
Word problems, with short solutions and "details" that reveal steps in solving number theory, logic, geometry, and more. Scripts include original JavaScript about continued fractions, Apollonius circles, Pythagorean triples, decompositions of sums of
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 Magnet/Mathematics Connections: Morse High School  Suzanne Alejandre, for the Math Forum
Morse High School is the Center for Technology and Pacific Rim Studies. The school magnet focuses on five career paths designed to provide a multifaceted, enriched magnet program: Aeronautics, Engineering, Science, Tourism and Languages. These pages provide
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 Make Math More  Make Math More, LLC.
Activities, lesson plans, extensions, teacher guides, student worksheets, and other materials created and sold by a Cleveland middle school teacher to engage his students by making math relevant to their lives: "Probability of Rock Paper Scissors"; "Creating
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 Making Mathematicians  Holly Young
Lessons, activities, book recommendations, and more from a Nevada educator who provides professional development on the "ACE" method (Answer the question; Cite details, show computation; Explain all steps) of answering constructed response questions.
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 Making Mathematics  O'Reilly Media, Inc.
Learn mathematics by making math with Hilbert, an online version of Mathematica. The Making Mathematics syllabus and course platform presents students with computational examples to explore  and challenges them to create their own.
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 Making Math Fun  Robert Greenlee
Sample a hundred different math games, worksheets, PowerPoints, and teacher resources in PDF format from the collection of 700 that Robert Greenlee sells as a CD.
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 Making of America Books  University of Michigan
This digital library of primary sources in American social history includes dozens of schoolbooks on arithmetic and other mathematical subjects that date to the antebellum period through reconstruction. Search or browse scanned graphics or transcribed
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 Mandelbrot Competition  Greater Testing Concepts
A roundbyround math contest in the United States, the goal of which is to introduce high school students of all ability levels to accessible new topics in mathematics while providing stimulating, challenging problems. The team test portion of the contest
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 Mangahigh.com Math Games  Blue Duck Education Ltd
A gamesbased math learning environment built around the UK's national curriculum. Mangahigh.com's online quiz game, Prodigi, adaptively coaches students aged 1016 with worked examples, full hints, and solutions. Other interactive games include "Save
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 Maple Application Center  Waterloo Maple, Inc.
Software you can order to explore, share, and publish math on the Internet. Interactive media for exploring and exchanging mathematical ideas, with content on a variety of subjects at the high school, university, and graduate level. (There are high school
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 Maplesoft: Math & Engineering Software  Waterloo Maple Inc.
Maplesoft is a leading developer of interactive mathematical software such as Maple. Its suite of products harnesses the power of mathematics to provide industry, government and academia with technical productivity tools.
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 Mastery Math  Tough Math  Alfred T. Ludwig
A mastery format program designed for highrisk, underachieving, or lower quartile students to gain the critical skills necessary for entry into Algebra 1. It is "inclusive," addresses state and national standards, and eliminates the need for "tracking"
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 Matemática Virtual  Mariam del Mar Correa
Página dedicada a las matemáticas donde puedes encontrar consejos para superar el miedo a las matemáticas, estrategias para resolver problemas, fórmulas, cultura matemática y test de inteligencia.
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 Materials for Math Teaching  Antonija Horvatek
Antonija Horvatek, a math teacher in Croatia, offers her Geometer's Sketchpad (.gsp) files and Power Point (.ppt) files that explain: fractions, decimal numbers, integers, rational numbers, equations, functions, perimeter and area, plane transformations,
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 Math2.org (formerly Dave's Math Tables)  David Manura
A collection of useful searchable math reference tables, formatted especially for the Web. Tables cover topics in general math (number notation), algebra (identities, polynomials, exponents, etc.), geometry (areas, volumes, surface areas), trigonometry
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 Math500.com  Joe Cunningham
Selfguided problems to solve with automated feedback based on the strategy you select from among the multiple choices presented at each step, or upon the intermediate calculation you enter. Worked examples provide additional stepbystep support. Choose
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 Math Activities for Grades 912  Biezad, Ward; NASA Dryden Flight Research Center
Lesson plans based on aeronautical themes and NASA projects. Topics include: Latitude and Longitude: A Real Life Example of the Distance Formula; Graphing: The SR71: Discovering the Linear Relationship between Celsius and Fahrenheit; Battery Depletion
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 Math Advantage  Harcourt Brace School Publishers
Java and Shockwave activities (for individual or cooperative group work), sorted by grade level (K through 8); and parent/teacher features within each activities list, with further activities. The main site, the Learning Site, also offers parent and teacher
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 Math Adventures  George Gadanidis
Site for MathMania magazine, published four times yearly. It was originally published from 19891992, and was revived in 1999. February and April issues from 1999 are available free. The site also offers activity books, games, software, and a book on
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 Mathagogy  Peps Mccrea
"Two minute mathematics education" videos posted by teachers on how they teach particular concepts. Pedagogy clips outline approaches to teaching proportion, proof, prime numbers, probability, sine and cosine graphs, and algebraic literacy; or with Cuisenaire
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 Math and ProblemSolving  Dan Rosard
This site offers help with procedures, particularly in areas which have been observed to cause problems to some students; and unstructured problems with clues and questions. The first problem attempts to emulate the thinking used in the development of
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 Math and Science: Recommended Books (Natural Math)  Maria Droujkova and Dmitri Droujkov
An annotated list of books in alphabetical order by author, selected because they are pleasant to read, have valuable math or math education content, are respectful to students, and are accessible to a broad audience. Books may be purchased online through
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 Math and Soccer Video  Sharp Tack Productions
A video revealing the role played by numbers, graphs, geometry, algebra, angles, area, surveys, and chance data in the game of soccer; for example, how a goalie relies on the properties of angles to know where to stand when defending the goals, and on
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 Math Applets  Tristan de Frondeville, Educational Object Economy (EOE)
The author, a math teacher in San Franscisco, describes how he has begun to use Java Applets in his classes and the results he has been getting. The applets are linked at their descriptions in the text.
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 MathApplications  Cathleen V. Sanders
An interactive mathematics course offered via the Internet to students throughout the Hawaiian islands. Cathi Sanders, a teacher at Punahou School in Honolulu, teaches this course through ESchool, a pilot project of the Hawaii Department of Education
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 MathArguments180.com
Subtitled "180 Days of Ideas for Discussion in Math Class," this blog of prompts dates back to January, 2014 with posts such as "Improperly Canceling Fractions," "Order of Operations is Wrong," and "Why 360?"
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 MathAssist  Bernd Schultheiss
Math shareware from Germany (English, French, and German versions are available) for secondary level or high school students and teachers. MathAssist helps in solving most of the tasks of algebra, geometry, analysis, stochastics, and linear algebra.
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 Math A Tube
A collection of short instructional math videos, gathered from around the web, on addition; algebra (elementary); base ten blocks; compare and order; counting numbers; decimals; division; Everyday Math methods; estimation; exponents; factors; fractions;
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 MathBits.com  Frederick and Donna Roberts
Devoted to offering fun, yet challenging, lessons and activities in high school/college level mathematics and computer programming to students and teachers. Includes Teacher Resources for Algebra, Geometry, Algebra 2, and Statistics; Finding Your Way
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