 mathbabe  Cathy O'Neil
"Exploring and venting about quantitative issues." Blog posts, which date back to June, 2011, have included "KNearest Neighbors: dangerously simple," "Cool math books," "Women in math," "Mathematicians know how to admit they're wrong," and "Why log returns?"
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 Math Basics
Online drills in the four basic operations (addition, subtraction, multiplication, division), using adaptive practice so that only the problems still giving trouble are repeated.
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 Math Basics (1,2,3 ... to PreAlgebra)  Kids Gotta Learn
A subscriptionbased online service offering assessment tests for basic math skills, and worksheets addressing those areas. Topics are listed on the site with sample tests and worksheets, and a video describes the product. Subscriptions are available
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 Mathbiz.com  Joseph Cunningham
Free interactive math problems. An "electronic tutor" gives you stepbystep instructions for each problem, which you must answer before proceeding.
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 Math Blaster  Knowledge Adventure, Inc.
Hub for the Math Blaster outer spacebased Massively Multiplayer Online (MMO) game. Free math resources include activities, practice, worksheets, and problems.
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 MathBlues.com  Rafiq Ladhani
Stepbystep explanations and worked problems "all about the new SAT." Browse the weekly articles by topics such as algebra, trigonometry, geometry, statistics, and "math art." This SAT preparation site for students also includes message boards, weekly
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 Math Camp  Ivars Peterson (MathLand)
For four weeks [in 1996], 98 students housed at the University of Washington (Seattle, WA) mixed mathematics with field trips, tennis, swimming, volleyball, and a host of other activities. It was a unique summer camp that kept them busy listening to lectures,
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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 Cats  Wendy Petti
A site for children that promotes openended and playful explorations of important math concepts, and more serious reflection on topics such as Hurricane Katrina. Start with the magic chalkboard, then enter Math Cats MicroWorlds (interactive projects);
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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 Challenge  Whitehousekids.gov
A new challenge is posted each Monday for students in elementary, middle, and high school. Type in your numerical answer, and the site checks it for you. Also see the Open Challenge and the archive of past problems, which date back to August, 2004, and
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 Math Club  Mary Kathryn Eisemann, Tomasz Jan Klosowski, Micjal Andrzej ZabickiThinkQuest 2000
Brief tutorials, puzzles, and brain teasers for students aged 1217. Some topics include: equations, trigonometry, geometry, set theory, logic, and induction. The games range from mazes to magic squares to Victorian parlor games. Students may log in
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 MATHCOUNTS  MATHCOUNTS Foundation
A national math coaching and competition program that promotes 7th and 8th grade math achievement through grassroots involvement in every U.S. state and several territories. At the beginning of each school year, the MATHCOUNTS Foundation distributes,
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 MathCracker.com
Online solvers and graphing tools to create scatter plots, calculate mean and standard deviation, and draw pie charts on the web. MathCracker.com also provides statistics tutorials, lessons, and worked math problems, solved step by step. See, in particular,
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 Math Curriculum @ New Visions for Public Schools
Algebra I, Geometry, and Algebra II courses aligned to the New York State Common Core Learning Standards for Mathematics. Each unit within a course emphasizes a single big idea, with instructional routines undergirding initial tasks, formative assessment
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 Math Day  University of NebraskaLincoln
An annual "day of fastpaced mathematics" for high school students hosted by the University of NebraskaLincoln's Department of Mathematics since 1990. See multiplechoice and essay problems from the individual competition, named PROBE ("Problems Requiring
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 Math Delights  Nancy Blachman
Activities, games, magic tricks, puzzles, and problems for kindergartners through 6th graders: Coins in Twoland; The Transforming Flexagon; Map Coloring; The Mobius Strip; Circular Patterns; Palindromes; Number Bracelets; Caterpillar Numbers; Sugar Cubes:
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 MathDEN: Mathematics Resource for the Home and Classroom  ACT360 Media Ltd.
To explore this site, use guest as username and password. MathDEN presents a new set of competitionlevel questions every Thursday. From the MathDEN homepage, click on the Stage that best matches your math abilities: Stage 1 (Grades 78); Stage 2 (Grades
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 Math Department Problem Sets  Phillips Exeter Academy, Exeter NH
Six problem sets, with glossaries, by the Phillips Exeter Mathematics Department. See also a description and student testimonial of the Harkness method.
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 MATH DITTOS 2 (Arithmetic Software)  Wood
The MATH DITTOS 2 series is a factsupported approach to teaching computation designed for special learners by a career elementary schoolteacher. Each page in the series presents a limited number of problems with some workspace. The facts necessary to
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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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 MathDrills.Com  Peter Waycik
Free addition, subtraction, multiplication, and division drill sheets for students, parents, and educators.
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 MathDrills  Elias and Daniel E. Saab
Math drills with randomly generated problems, with details and hints and scores kept. Types of drills include problems on distance, speed, and time; job completion; roots of polynomials; percentage word problems; arithmetic attack; fraction attack; bases;
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 Mathe Board  Math Community
A German Community helping mathematics students. With discussion board, puzzles, and more.
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 Math eBooks  Alex Svirin
Math eBooks offers solved problem guides on a variety of topics in Calculus: Techniques of Differentiation; Techniques of Integration; Infinite Sequences and Series. May be purchased online (PDF format).
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 Math Education Page  Henri Picciotto
Math education articles by the author, with an emphasis on algebra. A New Algebra: Tools, Themes, Concepts, an article that summarizes the pedagogical and curricular thinking behind ATTC; Early Mathematics: A Proposal for New Directions, a chapter in
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 Mathemagic Activities  Cyberspace Middle School (CMS)/Larry Dennis, Florida State University.
Tricks based on simple mathematics, but which to those who don't understand the mathematics may seem magical. Since these tricks are based on mathematics, they are relatively easy to do and are pretty close to foolproof. Book recommendations and trick
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 Mathemania
Basic math primers enlivened with relevant videos and games.
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 Mathematical Analysis for Beginners in Mathematics and Engineering  Vladimir M. Miklyukov
A set of lectures and sample test questions, in Russian language with English captions.
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 Mathematical Circles Topics  Tom Davis
Mathematical Circles are for students of high school age or younger who want to increase their abilities to reason about mathematical problems. Students who study in circles learn to do mathematical olympiadstyle problems (essay or proofs, not quick
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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 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 Etudes  Mathematical Etudes Foundation
Explorations of mathematical curiosities, some as yet unexplained, through computer animations: train wheels; the sandwich problem; Lipkin linkage; a clever folding; shield a ray; the net of a polyhedron; the vernier scale; the Pythagorean theorem; angle
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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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