 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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 Matemática Sem Palavras  Jorge Picado et al.
Diagramas visuais (Java) que conduzem à descoberta de áreas, multiplicação, equações completas de segundo grau, somas com um numero finito de parcelas, somas com um numero infinito de parcelas, desigualdades,
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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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 Materials for using projector in math teaching  Antonija Horvatek
Geometer's Sketchpad and PowerPoint files for presenting fractions, decimals, integers, rational numbers, equations, functions, perimeter and area, plane transformations, the Pythagorean Theorem, threedimensional geometry, and statistics. Also available
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 Matesfacil  Jose Llopis
Ejercicios resueltos de matemáticas: potencias; binomio de Newton; productos notables; ecuaciones de primer e segundo grado; ecuaciones bicuadradas, logarítmicas, exponenciales, y irracionales; geometría plana; ruffini; progresiones;
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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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 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 Physics Help Homepage  Kenny Felder
A collection of papers that explain various concepts in math and physics, with links to related education and learning sites. Math covered includes: Negative Times Negative is What?; Base Eight  And other math for people who are missing fingers; Triangles,
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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 and the Art of M. C. Escher  Anneke Bart and Bryan Clair with Steve Harris, Saint Louis University
Online materials covering Euclidean and nonEuclidean geometry as well as some other topics. It is intended to support a mathematics course at the level of college algebra, with topics taken from the mathematics implied by Escher's artwork. The website
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 Math Applets  Jake Enfield
Java applets for basic math, decimals, integers, fractions, geometry, and graphing. The author especially recommends 'Speed Multiplying', 'Finding Hurkle', and 'Graphing Linear Equations'.
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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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 Math Art Activities  Zachary J. Brewer
Supplementary art activities for grades 24 intended to help teachers introduce, reinforce, or expand on the topics they teach. The online game Forty Frogs helps students conceptualize the process of finding fractions of sets. Read the introduction of
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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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 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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 The Math Behind Numb3rs  Wolfram Research, Inc.
Wolfram Demonstrations of the mathematics behind each CBS television broadcast of the FBI crime drama series NUMB3RS, from the pilot episode through season six: Structural Corruption, Prime Suspect, Sabotage, Bettor or Worse, Soft Target, Double Down,
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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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 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  Brightstorm  Brightstorm, Inc.
Search and browse this online learning network's hundreds of free algebra, geometry, precalculus, and trigonometry videos. Produced to complement inschool learning in "personalized formats that map to the way teens consume digital content," Brightstorm
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 Math Buddy Online
Activities for elementary kids, with online practice worksheets and assessment tests, along with a free question of the day for kids and a newsletter for parents. Free tenday trial version available.
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 Math by Design  Maryland Public Television
Students become architects in this Flash adventure into geometry and measurement, building Flossville Town Park or Windjammer Environmental Center. With lesson plans, teaching tips and techniques, crosscurricular activities, videos of math in action,
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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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 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 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 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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 mathcoachblog.com  Bob Lochel
Blog by a math teacher "interested in effective technology integration in math classrooms, and developing lessons which challenge all learners to think mathematically." Posts, which date back to January, 2012, have included "What to do Before a Hurricane,"
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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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 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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 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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 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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 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 Craft  Cory Poole, administrator
A community "dedicated to the exploration of mathematically inspired art and architecture through projects, community submissions, and inspirational posts." Share images, videos, and other resources on the corkboard; post questions to the forum. The blog
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 Math Curriculum  Educational Explorers
A computer program for third grade, fourth grade, fifth grade, and sixth grade students to study mathematics, language and geography skills. The program contains 200 problems and their answer in English and Spanish, some of which can be accessed free
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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 Education and Technology  International Education Software (IES)
IES Inc. was established for research, development, import, and sales of software for mathematics education. As well as creating its own software, it offers information from all over the world. Contents: Manipula Math with Java (more than 175 math applets
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 Mathemagica  The JASON Academy
Tools and professional development materials include: a districtbased professional development program; a set of 5week inquiry based courses offered through the JASON Academy; and a library of Interactive Math Tools. Mathemagica has created online professional
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 Mathematical Animations  Erich Neuwirth
Animations to illustrate mathematical concepts and proofs: the Pythagorean Theorem; the shape of the moon's orbit; Bezier curves explained; and correlation visualized by graphing data sets with a given correlation. Some animations require the Imagine
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 A Mathematical Canvas  Kirby Urner
Urner's statements on his approach to curriculum writing and philosophy of education, as well as articles: "On Programming the Calculator," "Alien Curriculum," and "Python for Homeschoolers @ FreeGeek." Download 4D "Moodles" of courseware such as Geonumeracy
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