 Let's Do Math!  Cynthia Lanius
Maria and Cassie love doing math. The first problem they solve together is counting all the squares on a checkerboard  not just the individual squares, but all the differentsized squares that could be counted. Other Do Math problems include probability
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 The Let's Make a Deal Applet  West, Street; Dept. of Statistics, Univ. of South Carolina
As a motivating example behind the discussion of probability, this applet allows students to investigate the Let's Make a Deal Paradox (also known as the Monty Hall Problem, or The Three Doors). This paradox is related to a popular television show in
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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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 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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 LiveMath  Theorist Interactive, LLC
WebShareable computer algebra and graphing software (formerly MathView/Expressionist / Theorist / MathPlus). LiveMath notebooks may be shared via the Web. They are similar to spreadsheets in that a change in one value will ripple throughout the calculations.
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 Lizard Game (MatheMUSEments!)  Ivars Peterson (Math Muse for Kids)
The rocky Coast Range of California is the setting for an unusual game played by a brightly colored sideblotched lizard. Each male of the species has one of three throat colors, and each color of lizard has a different mating behavior. The lizards play
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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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 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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 Losing to Win  Ivars Peterson (MathTrek)
Researchers have demonstrated that two games of chance, each guaranteed to give a player a predominance of losses in the long term, can add up to a winning outcome if the player alternates randomly between the two games. This striking new result in game
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 Lottery Mania  Keith Devlin (Devlin's Angle)
The math behind the odds of winning the Big Game, a lottery open to 7 states (Massachusetts, Maryland, Georgia, Illinois, Michigan, New Jersey, Virginia,), and how to understand it ("the psychology of lotteries has a logic all of its
own").
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 MAA Bookstore  Mathematical Association of America
A searchable list of books, with descriptions, in the following categories: Algebra; Analysis; Applied Mathematics; Calculus; Career Information; Computing and Computers; Elementary Models; Games, Puzzles, and Popular Exposition; Geometry and Topology;
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 The Magical Maze: The Natural World and the Mathematical Mind  Prof. Ian Stewart; Mathematics Dept., University of Warwick, UK
At every step in a mathematical investigation you are faced with choices: some choices lead in fruitful directions, most do not. So mathematics is a maze  a logical maze, a mental maze which attempts to parallel the maze of cause and effect that we observe
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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 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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 March Mathness  Princeton University Press
Interviews and predictions of sports rankings experts, coaches, and mathematicians which take the power of mathematical methods of rating and ranking, and bring them to bear on the NCAA college basketball tournament. Princeton University Press invites
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 Markov System Simulation  Waner, Costenoble; Hofstra University
An online Javascript simulation of a 3state Markov process that shows the state transitions graphically, records the number (and relative frequency) of hits at each state, and counts the number of steps to absorption when an absorbing state is present.
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 MAT 312: Probability and Statistics for Middle School Teachers  Roger Day; Mathematics Department, Illinois State University
A course with the objectives of developing greater skill and understanding of: statistics, as you collect, organize, display, and analyze data, generate and use statistical information to support or challenge a position; probability, as you distinguish
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 MatematicasVisuales  Roberto Cardil, Miguel Cardil
Interactive visualizations of mathematical concepts, in the topics of geometry, real analysis, complex analysis, probability, and history. An English version is also available.
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 Matematicaula  Óscar J. Falcón
Juegos, acertijos de olimpíadas, los Elementos de Euclides con GeoGebra, y otros recursos para números, álgebra, geometría, funciones y gráficas, estadística y probabilidad.
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 Matemáticas  Antonio Pérez
Si estás interesado en las Matemáticas, si eres profesor, estudiante, o simplemente sientes curiosidad, esta página te puede ayudar. Didáctica e Historia de las Matemáticas; Curiosidades en Internet. Problems, puzzles,
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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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 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 Science in Baseball  Bair, Winchell; ThinkQuest 1996
A unit designed to provide links between science, math, and baseball, with tips or explanations of the game of baseball. How to figure out batting averages, weight and velocity in batting.
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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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 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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 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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 MathCaptain  mathcaptain.com, Inc.
Chat tutoring services in algebra, geometry, trigonometry, calculus, number systems, and statistics. With free online primers and solved examples.
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 Math Celebrity  Don Sevcik
Free online calculators and instructional screencasts in actuarial science, accounting and taxes, algebra, basic math, calculus, capital budgeting, conversions, discrete math, economics, engineering, finance, gaming, geometry, linear algebra, physics,
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 Math Central/Math Centrale  University of Regina, Regina, Saskatchewan, Canada
For K12 math education: a teacher resource room, a bulletin board, a questionandanswer service, and Teacher Talk, an email discussion forum. Teachers are encouraged to send resources and suggestions. Math Central is maintained by faculty and students
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 Math.com
Links to Internet math resources for students, teachers, and others, and to products from the Math.com store. Solutions include assessment, ondemand modular courses that target key math concepts, 24/7 live online tutoring, and expert answers to math
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 MathComplete  Beata Obrzut
Learn about probability distributions, quadratic equations, linear expressions, slope of a line, radical expressions, and sequences and series through tutorials, worked MathML examples, and "automatic solvers" that use Design Science's MathPlayer software.
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 MATH Connections: A Secondary Mathematics Core Curriculum  Mathconx, LLC
A secondary math core curriculum that blends algebra, geometry, trigonometry, statistics, probability, and discrete mathematics to emphasize the interconnectedness among mathematical ideas. It incorporates graphing calculators and computers to solve real
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 Math Courses Online  Nancy Parham
Online courses offered by Cal State Bakersfield, Fresno, Los Angeles, San Bernardino, San Marcos, and Cal Poly San Luis Obispo: designed for students preparing to take the math exams ELM, GRE, CBEST, or SAT, or adults who are reentering college after
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 The Math Dude  Mike DeGraba
Mike DeGraba is the Math Dude, bringing engaging explanations to Algebra I students in this series of videos. The 5 to 7minute episodes are available via Flash on the web, podcast, RSS feed, and if you live in Montgomery County, MD, cable TV. Episodes
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 The Math Dude  Quick & Dirty Tips™
Instructional articles, many on mental arithmetic, some with audio or video accompaniment. Popular weekly episodes, which date back to January, 2010, have included "How to Convert Between Fahrenheit and Celsius"; "How to Quickly Calculate Percentages";
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 Mathematical BBS (Mathematics)  Mathematics Dept., Univ. of Ferrara, Italy
Collections of resources: Associations, Departments, Disciplines, Journals, Industrial mathematics, the mathematician. Disciplines include: Algebra; Algebraic geometry; Analysis; Applied Mathematics; Categories; Combinatorics; Complex analysis; Computational
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 Mathematical Connections  Brian R. Sears
A collection of more than 20 wellknown problems (with solutions), and Sine Wave, a set of essays on "the aesthetic aspects of mathematics."
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 Mathematical Gems
Brief articles include Irrationality of the Square Root of 2; The Best Card Trick; Boltzmann in Berkeley; Four of a kind and two jokers; Mathematical Paint (on Gabriel's Horn); How Many Squares, Mr. Franklin? Goldbach's Proof of the Infinitude of Primes;
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 Mathematical Modeling  Thomas E. Kelley, Dept. of Mathematical Sciences, Metropolitan State College of Denver
Description of course projects that emphasize learning mathematics through work on openended problems that have no "one correct solution," requiring the construction of a proposed mathematical model and designed to motivate students' learning of mathematics
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 Mathematical Mystery Tour  ThinkQuest 1996
A nolongeractive online contest; old competition problems; lessons (logarithms, probability, trigonometry); and an area to submit problems.
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 Mathematical Problems  Torsten Sillke
Some in German, most in English. Topics include graph theory, number theory, combinatorics (enumerations), geometry, algorithms and complexity, recreational mathematics, tiling and packing, dissections, probability, algebra, analysis. Also links to "MathNews"
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 Mathematical Science  IOS Press, Amsterdam
Abstracts of books in the mathematical sciences: Symmetry and Physical Properties of Matter; Singular Perturbations in Elasticity Theory; Edgar Krahn, a Centenary Volume; Applied Fourier Transform; Analysis of Random Walks; Passage Times for Markov Chains;
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 Mathematical Sciences Institute  Andrew Talmadge
Technologydriven professional development for middle and secondary level mathematics teachers. Weeklong summer courses led by Nils Ahbel, Karen Bryant, Doug Kuhlmann, Ron Lancaster, Ira Nirenberg, and others have included Using the iPad to Enrich and
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 Mathematics Across the Curriculum (MATC)  Dartmouth College
An NSFfunded project which strives to integrate the study of mathematics into the whole curriculum. MATC Courses: Mathematics and the Humanities (Pattern, Chaos, Late Renaissance Thought and the New Universe, Math and Science Fiction, Geometry in Art
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 Mathematics Archives  University of Tennessee, Knoxville (UTK)
A comprehensive site for finding mathematics on the Internet; particularly strong in its collection of educational software and links to other sites of interest to mathematicians that provide access to electronic journals, preprint services, grant information,
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 The Mathematics Common Core Toolbox  The Charles A. Dana Center at the University of Texas at Austin and Agile Mind, Inc.
Tools and instructional materials for understanding and implementing the Common Core State Standards for Mathematics (CCSSM). Resources for CCSSM content and practice include key visualizations, formative assessment tools and tasks, classroom challenges,
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 Mathematics  David Madore
Before organizing cryptography conferences for the École Nationale Supérieure des Télécommunications, Madore studied at France's École Normale Supérieure (ENS). See, in particular, his Javascript hyperbolic maze,
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 Mathematics Enhancement Programme  Centre for Innovation in Mathematics Teaching, Univ. of Exeter, U.K.
A whole curriculumlessons, worksheets, overhead projector transparencies, teacher notes, practice problems and examsfor primary and secondary schools. Use the Mathematics Attainment Test to generate tests online, automatically mark and detect common
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 Mathematics Exploration I  Capital CommunityTechnical College
Ten activities (to be doubled during the fall of 1999) with faculty notes, ranging in difficulty from prealgebra to college calculus and differential equations, based on activities that occur routinely in project design and during space launches. Supported
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 Mathematics Illuminated  Annenberg Media
A video course for adult learners, high school and college teachers; 13 halfhour video programs, online text, course guide, and Web site; graduate credit available. "Rather than a series of problems to be solved, mathematics is presented as play we engage
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