 Lee's Roman Numeral Converter  Lee K. Seitz
Convert a number into Roman numerals and back again online. Site also includes a brief introduction to Roman numerals, a FAQ, and some comments on the structure of the converter program.
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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 jeux de Lulu, le lutin malin  Regine
Jeux, écrits en JavaScript: jeux maternelle autour du nombre, orientation, déplacement, mémoire; jeux élémentaire et plus (logique, math, orientation). JavaScript games for children.
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 Lesson Plan Search  Google
Free math lesson plans that make use of Google Earth, Google Calendar, Exploring Computational Thinking, and other products and projects of the search engine company: Telling time & Google Calendar; Human Dimensions Project; Median of Latitude Data;
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 Lesson Plans for the Graphing Calculator  Institute for Technology in Mathematics, William Paterson College, Wayne, NJ
Solutions of Radical equations; Extreme Values and Calculus; Parallel Lines and Properties of Slope; Safe Linking with the TI82; Finding Perfect Numbers; Graphing Celsius and Fahrenheit. By teachers from northern New Jersey.
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 Letopweb.org
Des jeux éducatifs pour mathématiques au primaire: connait les chiffres de 0 à 9; pratique le carré des tables de multiplication; retrouve la figure qui correspond à celle de gauche; fait des exercices de calculs; apprend
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 License Codes  Ivars Peterson (MathTrek)
Some states use complicated schemes for establishing driver's license identification numbers. The numbers may include check digits to detect errors or fraud, or they may encode such personal data as the month and date of birth, year of birth, and sex.
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 Links to Information on Number Systems  Suzanne Alejandre
Arabic, Babylonian, Chinese, Egyptian, Greek, Mayan, and Roman number systems, two to ten links in each category.
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 Lure of the Labyrinth  Learning Games to Go (LG2G)
In this free online adventure game, middleschool prealgebra students rescue their pets, combat mysterious monsters, and embark on whimsical math missions to gain a better understanding of proportions, fractions, and ratios, variables and equations,
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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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 Magical Methods  Magical Methods Enterprises
A source for Vedic mathematics, as developed by Pradeep Kumar. Find examples of arithmetic shortcuts for calculating squares, cube roots, multiplication, and division. Play games such as a calculation speed builder; purchase products to prepare for the
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 The Magic Hexagon  Frank R. Kschischang
A diameter5 magic hexagon. Each integer from 1 to 19 appears exactly once, and the sum of the numbers along any column or diagonal is the same.
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 Magic Square Puzzle  Dubi Kaufmann
In this Shockwave activity, the goal is to arrange jigsaw puzzle pieces numbered 0 through 15 on a four by four grid so that the sum of each row and column is equal to 30. Explorer preferred.
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 Magic Square  Robert Aragon
Create a magic square with an n x n dimension, where n is an odd number. This program can be used to check the sums of any rows, columns, or main diagonals of a magic square. The program was written in the C language and allows the user to determine the
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 Magic Squares  Alan W. Grogono
The Magic Carpet approach to understanding magic squares. Underlying many of the small sized panmagic squares there is the simplest of patterns  best likened to a magic carpet  which can be endlessly repeated in all directions and can be sampled to
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 Magic Squares, Magic Stars & Other Patterns  Harvey Heinz
A large collection of material on magic squares, cubes, hypercubes, stars, and other 'magic' objects. Also pages on other number patterns. The purpose of this site is to show that mathematics can be fun. Subjects demonstrated include algebra, patterns,
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 Magic Squares  Mark S. Farrar
Pages about Magic Squares, much of the information from Farrar's book. Contents include: What Is A Magic Square?; History; Magic Total; Odd Magic Squares; 4 x 4 Magic Squares; Unusual Magic Squares; References; Magic Square Links; Magic Square Photographs.
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 Magic Squares: Math, History, Geography  Suzanne Alejandre
Designed primarily for middle school and older elementary school students, this Math Forum Web unit includes classroom activities for four different squares: Lo Shu, Sator, Dürer, and Franklin, three of them demonstrating increasing complexity using
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 Magic Squares  Mutsumi Suzuki
Information about magic squares, organized into the following categories: Database, Algorithms, Mathematical Background, Story and/or History, Links, Related Topics, Photographs, Email, Literature. The magic squares pages, currently hosted by the Math
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 Magische Quadrate  Holger Danielsson
History, definitions, magic sums, transformations, properties, and more. Danielsson provides Flash that uses Hendricks' method to construct your own magic squares: odd, even, doubleeven, singleeven, composite, concentric, mostperfect, bimagic, pandiagonals,
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 Magische Quadrate  Paul Heimbach
Techniques for creating 4x4 and larger magic squares using masks that define areas where a specific number will or will not be added (Jupiter squares and Merkur squares, with many examples of each); art based on magic squares and other mathematical models;
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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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 Mamikon  Mamikon Mnatsakanian
Thoughtprovoking Shockwave Flash animations of geometric constructions, graphs, games, and much more. Mnatsakanian's site http://www.mamikon.com/ links to dozens of the articles he has coauthored with Tom Apostol in journals such as American Mathematical
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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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 The Map is Not the Territory  Malke Rosenfeld
Blog by a traditional percussive dancer (Appalachian style flatfooting and clogging and Canadian step dancing) who "teaches the math that directly relates to the process of making rhythm and patterns with the feet." Posts about the mathematics of percussive
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 Margaret A. Yoder
A mathematics professor at Eastern Kentucky University. Mathematics Awareness has facts about the numbers from 1 to 30. Site also includes Yoder's resume, and syllabi for her current courses.
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 Margo Lynn Mankus  Margo Lynn Mankus
Talks include Using Virtual Manipulatives on the Web to Develop Number Sense, Connecting Whole Number Arithmetic to Algebra: HandsOn/Number Sense Activities, and Learning About Nutrition Using the TI73 and the Web. Also, online or downloadable classroom
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 Martin Gardner's Lucky Number  Ivars Peterson (MathTrek)
Hunting for prime numbers, those evenly divisible only by themselves and 1, requires a sieve to separate them from the rest. For example, the sieve of Eratosthenes, named for a Greek mathematician of the third century B.C., generates a list of prime numbers
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 Matemáticas básicos para niños  J. A. Cordero
La resolución de problemas, no solo de ejercicios, es la parte fundamental del aprendizaje de las matemáticas básicas. Los problemas implican una pregunta que no se sabe responder con los conocimientos inmediatamente disponibles.
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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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 Mathabacus.com: Learning Mathematics with the Abacus  MathAbacus.com & Kreatif Kembara Sdn Bhd.
Twobook program from Malaysia designed to teach mental arithmetic and numbers through the use of the abacus in classrooms.
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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 Articles for Educators  Douglas Twitchell, Virtu Software
Math educators write about activities and lesson plans that have worked for
them. Get help, or submit your own ideas for publication.
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 Math Calculators and Solvers Online  ACalculator
Online calculators for calculating or solving areas of rectangles, triangles, squares, circles, and more; volumes of rectangular prisms, pyramids, spheres, cylinders, conical frustrums, cones, capsules, and more; binary operations; fraction operations;
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 Math Camp for Parents  Group Jazz; Bolster Education
A virtual summer camp for parents and caregivers, intended to explain basic number concepts and provide useful teaching strategies for young children, centered around the discussion of number sense. Facilitated by experienced teachers; includes interactive
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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 Community of Interest  TeacherVision; The Learning Network
Lesson plans by grade level, lesson features, printable worksheets, online student activities, references and research aids, teaching tips, and parental advice.
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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 Course Reviews  Mathematics Dept., Triton College, River Grove, IL
Math course reviews for courses given at Triton College: Whole Numbers; Fractions and Decimals; Algebra I; Geometry; Algebra II; College Algebra; Trigonometry; Finite Math; Calculus I and II; Business Calculus; Calculus III; and Elementary Statistics.
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 Math Dance  Karl Schaffer and Erik Stern
The Dr. Schaffer & Mr. Stern Dance Ensemble has performed and conducted workshops on math dance in hundreds of schools and conferences since 1987. From that work, CoArtistic Directors Karl Schaffer and Erik Stern wrote MathDance, a 132page book with
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 MathDoku
Based on KenKen and loosely similar to sudoku, this online mathematical and logical puzzle challenges you to fill in the grid by combining the four main mathematical functions of addition, subtraction, multiplication and division.
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 Math  Donna Young
Manipulatives, graph paper, and worksheets to print and reproduce for home or classroom use: coordinate grids, clocks for math, charts for math, triangular math facts cards, play money, math drill sheets, fraction manipulatives, unit multipliers, and
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 Math  Don Potter
Links and resources include the 1878 publication First Lessons in Arithmetic, a family heirloom that this teacher at Odessa Christian School (Texas) has scanned chapter by chapter, complete with woodblock illustrations and "slate exercises." From the
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 Mathematical Constants  Steven Finch, Clay Mathematics Institute Book Fellow
"All numbers are not created equal; that certain constants appear at all and then echo throughout mathematics, in seemingly independent ways, is a source of fascination." Indulge your fascination, or discover a new one in Finch's book. This site provides
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 Mathematical Games and Recreations  MacTutor Math History Archives
Number games, geometrical puzzles, network problems and combinatorial problems by famous mathematicians, starting around 1850 B.C. and continuing on to the present, with links to biographies of mathematicians who invented the games, pictures, and graphs.
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 Mathematical Recreations  Advanced Reasoning Inc.
Mathematically based (not fastpaced, highaction) software games designed to provide an environment in which thinking can take place. For each game there is an associated web site that provides further information. Tangrams, Black Box, and Magic Squares:
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 Mathematical Thinking  Swan, Malcolm; and Ridgway, Jim
Selfcontained, selfinstructional modules that "promote and assess thinking skills in mathematics." Mathematical Thinking Classroom Assessment Techniques (Math CATs) tasks from the Fieldtested Learning Assessment Guide (FLAG) include "Fault Finding
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 Mathematics  Alameda County Office of Education
Resources include 5th and 6th Grade CST Released Test Questions with Reasoning; FlashPapers and PDFs of the hundreds chart, multiplication table, "tell me fast" dots, ten frames template, and tips for memorizing multiplication; and Philip Gonsalves' PDF
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 Mathematics Computation and Problem Solving  RHL School
Worksheets for addition, subtraction, and multiplication. Every time you revisit or refresh one of these practice sheets, it's new. Teachers may copy single sheets for all their students, or give students similar but unique sets of examples. See also
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 Mathematics  Cornell Theory Center Math and Science Gateway
For secondary school students and educators. Links for general topics; geometry; fractals; history of mathematics; tables, constants & definitions; and mathematics software.
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