 Mathematical Droodles  Cut the Knot!, Alexander Bogomolny
Droodles were invented by Roger Price in 1950s. These were rather abstract drawings of few lines accompanied by an implicit question — "What is it?" A punch line — the author's answer — made the drawings obvious. A mathematical droodle is a visual object
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 Mathematical Entertainment  Eric Hiob, British Columbia Institute of Technology
Instructions for building a pinball table that demonstrates Pascal's Triangle. Also, notes on the Travelling Salesman Problem; Finding Areas Using the Monte Carlo Method; Important Numbers (pi and e); the Inside or Outside Problem; and the Roller Coaster
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 Mathematical Games, Toys, and Puzzles  Jeff Erickson
Combinatorial Games (Game Theory and Game Theorists, Actual Games); Other Fun Math; Silly Math. Links to pages on the Web with information about all of these subjects and more.
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 Mathematical Induction  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A brief discussion of mathematical induction, with proof, and other examples also proven by mathematical induction, including: Splitting piles; Continued Fractions; Linear Functions; Groups of Permutations; Inequality between arithmetic and geometric
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 Mathematical Induction  José Espinosa
A page of uncommon mathematical induction problems, most closely connected with number theory. Some properties may be proved in different ways. A version in Spanish is also available.
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 Mathematical Maelstrom  Chris Bolton, Pluto Puzzles
Crossnumber puzzles that test the solver's mathematical and logical powers.
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 The Mathematical Problems of David Hilbert  David Joyce; Dept. of Mathematics & Computer Science, Clark University
Text of Hilbert's address of 1900 to the International Congress of Mathematicians in Paris, in which he outlined 23 major mathematical problems to be studied in the coming century. Hilbert's address was more than a collection of problems. It outlined
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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 Tale Winds  Jerry Ameis; Faculty of Education, University of Winnipeg
Elementary school children can be encouraged to solve mathematical problems by embedding routine and nonroutine mathetical problems in short and long stories. Notes for teachers and parents are included. Contents: Concept stories (use to help develop
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 The Mathematical Tourist  Ivars Peterson
"Cool stuff" that Peterson, the Director of Publications and Communications at the Mathematical Association of America (MAA), encounters while "browsing the world of mathematics and computer science: new developments in math and its applications, old
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 The Mathematician in the Desert (Math Chat)  Frank Morgan, MAA Online
A mathematician, lost in the desert, hears a single toot from a train due west. He knows that the train goes at constant speed in a straight line, but he forgets in which direction. What direction should he walk?
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 Mathematics 574  Selected Topics in Number Theory  Jerrold Tunnell; Rutgers University, NJ
An introduction to rational points on elliptic curves through examples of interesting elliptic curves. Download problem sets in dvi or postscript format.
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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 and Biology  Cut the Knot!, Alexander Bogomolny
A discussion of evolution, inheritance, genes and mutation, the Prisoners' Dilemma, and how these and other biological themes relate to mathematics, with an applet that applies a genetic algorithm to solving the Toads and Frogs puzzle. An interactive
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 Mathematics and Multimedia  Guillermo Bautista
Blog about mathematics, teaching, learning, and technology. Begun in October, 2009, it has included posts such as "GeoGebra Tutorial 4  Graphs and Sliders"; "Screencasting Tutorial: Making a Math Video Lesson Using Camstudio"; "Derivative in Real Life
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 Mathematics Association of Victoria (MAV)
A professional association for teachers of mathematics, supporting mathematics education in Victoria, Australia by providing quality services and products for teachers, students and the wider community. This site details MAV's professional development
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 Mathematics by Mr. P  Mike Poliquin
Middle school math teacher Poliquin began this blog, subtitled "making sure everyone gets it," in December, 2011. Posts have included various original problems of the week; "Eudoxus of Cnidus: the First Mathematical Superstar"; "A Quick Dip in the Deep
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 Mathematics Center  Houghton Mifflin Company
K12 instructional materials and special offers. Online support for Math Central textbooks includes links, activities, and printable blackline masters. Weekly and archived Brain Teasers for grades 34, 56, and 7 and later. Data Place allows 36 grade
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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  Computers (Or Is It &&?)  Cut the Knot!, Alexander Bogomolny
As C++ can be a must for engineering students, Java is fast becoming an indispensable tool for future math teachers. The applet provided in this article draws two families of curves: hypocycloids (curves traced by boundary points of a circle rolling without
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 The Mathematics Corner, The Citizen Scientist  George Hrabovsky
Topics of interest for the amateur mathematician, as well as theory challenges and their answers. Hrabovsky's articles include supporting references in the form of books and web sites. Read back issues of his column, dating to its inception in 2002, which
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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 Department  Oregon Institute of Technology
Departmental information, including course descriptions and faculty listing. Also, practice tests in trigonometry, and elementary, intermediate, and college level algebra. These each include a separate page with answers, but without explanations of the
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 Mathematics Diagnostic Testing Project  California State University, San Bernardino
A service that develops, distributes, scores, and reports the results of tests that measure student readiness for mathematics courses from first year algebra to calculus. The primary goal of the Mathematics Diagnostic Testing Project (MDTP) is to help
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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 for Kids  Mocomi  Ram Shengale
Freely downloadable math worksheets.
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 Mathematics Gallery  Oppia
Dialogic math explorations that "simulate the oneonone interaction that a student has with a teacher." Browse the gallery or log in to create, collaborate on, and embed your own "smart feedback system" using Oppia's web interface.
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 Mathematics History  ThinkQuest 1998
Math history, summarized by period/country/century, with biographies of famous mathematicians, and 8 short tests with questions and answers.
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 Mathematics in Tens  Steve Mayer
Ten ... problems to make you think, facts about maths you may not know, good maths books, mathematicians, maths jokes, reasons to study maths, mathematical links, mathematics software programs, mathematical constants, mathematical formulae. Ten littleknown
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 Mathematics Meetings Feature Proof of Dodecahedral Conjecture by Undergraduate Sean McLaughlin (Math Chat)  Frank Morgan, MAA Online
The Dodecahedral Conjecture says a very symmetric conjectured arrangement, based on the regular 12faced dodecahedron, it is the optimal arrangement locally to pack unit balls around one fixed ball. This conjecture has now been proved, by Hales's undergraduate
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 The Mathematics of the Fibonacci Series  Ron Knott
Patterns in the Fibonacci Numbers (Cycles, Factors); The Fibonacci Numbers in Pascal's Triangle (Why do the Diagonals sum to Fibonacci numbers? Another arrangement of Pascal's Triangle; Fibonacci's Rabbit Generations and Pascal's Triangle); The Fibonacci
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 Mathematics Papers  Peter Y. Woo, Biola University
Geometry Papers include a Java applet and circle inversion theorems about the arbelos, or shoemaker's knife; constructions with ruler alone, plus a circle; constructions with ruler alone, plus a parabola; Java applet of internal organs (such as centroid,
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 Mathematics Pentathlon  Pentathlon Institute
A program of interactive problemsolving games, supportive curricular and instructional activities, and assessment tools for students in grades K7. This motivational program strengthens basic math concepts and skills, aligns with national and state mathematics
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 Mathematics Problem Challenge  William P. Wardlaw, Mathematics Department, United States Naval Academy
Challenging problems in calculus, probability, geometry, and other topics. Browse the archives for web pages and .txt files of this challenge, which ran periodically between 1998 and 2003.
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 The Mathematics Shed  Robert Smith
Instructional video clips that feature rhyming narration or singing, organized into different "sheds": calculation, brain teasers, shapes, fractions, mental calculation, counting, data, measuring, visual stimulus, and more. The "Maths Story" shed offers
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 Mathematics Task Centre  Black Douglas Professional Education Services
Over 200 tasks that "invite students to work like a mathematician." Conceiving of a task as "the tip of a learning iceberg," each freely viewable lesson plan includes a summary, a list of materials required, the "Iceberg," and a description of whole class
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 Mathematics Teaching in the Middle School  National Council of Teachers of Mathematics (NCTM)
An official journal of the NCTM, Mathematics Teaching in the Middle School publishes activities, lesson ideas, teaching strategies, and problems through indepth articles, departments, and features for middle grades teachers. Article downloads are free
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 Mathematics Vision Project  Utah Secondary Mathematics
Freely downloadable PDF modules for secondary 1, 2, and 3 Integrated Pathway Common Core State Standards (CCSS). In addition to offering other resources that develop conceptual understanding with the "proficiency, along with factual knowledge and procedural
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 Mathematics With Alice  ThinkQuest 1997
Active Learner's InternetBased Creative Educator  learn polynomials and linear equations in the style of Alice in Wonderland. As you become more familiar with Algebra, Alice poses challenging problems for you to solve, or you can pose your problems
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 Mathematics Worksheet Factory  Schoolhouse Technologies Inc.
Software to download and purchase to create math worksheets for student practice in basic addition, subtraction, multiplication, and division or practice in more complex mathematical operations including whole number, fraction, and decimal operations,
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 Mathematik.com
Pages on topics in Mathematics: Gradus Suavitatis (Euler's music theory); Turing (input and output of a Turing machine); Billiard (Sinai billiard, a chaotic dynamical system); Abacus (the world's first computing system); Flexible Surface (the example
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 Mathematische Basteleien  Juergen Koeller
A collection of puzzles: pentominoes, Rubik's cube, tangrams, magic squares, and more. Many include directions for building a physical model of the puzzle, as well as comments on solutions. Other topics include numeric palindromes and building an origami
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 MatheMazier  Oluwasanya Awe
Blog about "problem solving, updates on some Olympiads, and also about Africa." Posts, which date back to October, 2012, have included "IMO 2011 Problem 2 (The Windmill Problem)," "Number of Zeros 1000! Ends With," "The Nigerian PanAfrican Maths Olympiad
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 Math Exercises
Interactive exercises, lessons, and worksheets to practice knowledge of whole numbers, integers, divisibility, fractions, exponents and powers, percentages, proportional reasoning, linear equations, quadratic equations, monomials, polynomials, special
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 Math Exercises for Children  Jude Mphoweh
Math worksheets, video lessons, games, quizzes, and downloads, as well as resources for parents and teachers.
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 The Math Factor  Chaim GoodmanStrauss and Kyle Kellams
Brief, weekly math conversations and puzzles, airing on KUAF 91.3 FM, Fayetteville, Arkansas. Listen to podcasts of this Ozarks at Large radio show; subscribe to the RSS feed.
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 MathFLIX  Loyola University Chicago School of Education
Hundreds of free, brief instructional math QuickTime movies, organized by NCTM Standard. MathFLIX, the result of a partnership between Loyola University Chicago's School of Education and The Chicago GEAR UP Alliance, also offers downloadable worksheets
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 MathForAllGrades
Overviews, definitions, formulas, and worked examples, primarily in algebra.
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 Math for Children  Mphoweh Jude Nzembayie
Free worksheets, video lessons, quizzes, games, ebook downloads and more.
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