 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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 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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 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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 Math 5337: Technology in the Geometry Classroom 
Sullivan, Burgiel, Osinga; The Geometry Center, Univ. of Minnesota
From the University of Minnesota's course in Computational Methods in Elementary Geometry, materials developed at the Geometry Center for teaching pre and
inservice teachers of highschool geometry interested in using technology in their classrooms.
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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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 MathAid  MathAid Associates, Inc.
Interactive mathematics selfstudy, online and offline: Java software with handson tutorials, problemsolving lessons, and customizable tests. Courses offered: Algebra II, College Algebra, Trigonometry, and PreCalculus. Additional topics covered: fractions;
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 Math Alive  Ingrid Daubechies, Princeton University
Materials from a course designed for those who have not had college mathematics but would like to understand some of the mathematical concepts behind important modern applications. Interactive "virtual labs" address cryptography; error correction and
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 Math Answer Key  MathAnswerKey.com
Enter a derivative or integral, and the program displays steps to follow and a final answer. Examples provided.
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 Math Applets for Calculus at SLU  Mike May, S.J., Saint Louis University
A collection of about 60 java applets covering many of the standard topics in the calculus sequence. Some include sample worksheets and discussion topics. The most viewed applets look at Riemann sums, families of functions, and constructing surfaced by
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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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 Math Applets  Tristan de Frondeville, Educational Object Economy (EOE)
The author, a math teacher in San Franscisco, describes how he has begun to use Java Applets in his classes and the results he has been getting. The applets are linked at their descriptions in the text.
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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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 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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 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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 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 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 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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 Mathcasts
Originally called "math movies" or "whiteboard movies," mathcasts are screencasts (screen movies of writing with voice) that focus on mathematics. Mathcasts.org gives students a library of math tutorials and problem solutions. Teachers use this wiki to
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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 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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 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 Concentration  Wanda McDowell
Founded by a middle school teacher in Florida to "share best practices and provide free and low cost resources like budget effective activities, incentives, math centers, and classroom management strategies." McDowell's site also provides middle school
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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 Cove  C. Mawata; Dept. of Mathematics, Univ. of Tennessee at Chattanooga.
Math Cove projects include: Java applets for exploring transformations (translations, reflections, and rotations) and learning about acute and obtuse angles and other concepts in triangle geometry; more than 20 lessons for studying graph theory (using
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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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 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 Doodles  Daren Carstens
Flash activities designed "to provide a place where children can discover the joy, wonder, and fun of mathematics."
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 Math Dork Interactive Math
Animated algebra tutorials, online quizzes, and games. Animations require Flash 3. Full access to this site involves a monthly fee; free lessons include graphing points in the coordinate plane and "The Golden Rule of Algebra."
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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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 MathEasy and GraphEasy Home Page  Asad Saleem Yousaf
Various online calculators, covering rectangular, polar, and parametric graphing, area under and between curves, center of mass, surface area, volume, arc length, differentials, probability, and statistics.
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 MathEclipse  Axel Kramer
Evaluate math expressions symbolically or numerically. MathEclipse plots two and threedimensional functions; checks primality; recognizes constants; accepts integers, rational numbers, complex numbers, real numbers, complex real numbers, vectors, matrices,
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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
A K8 mathematics project that focuses on the professional development of classroom teachers through rich multimedia content and online teacher communities. Take a tour of Mathemagica's portfolio of Multimedia Mathematical Investigations (interactive
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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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 Mathematical Backgrounds  Data Shaping Solutions
An interactive, online background generator for creating mathematical backgrounds with original patterns (fractals, carpets, dithering, etc.), textures, and palettes. Matgrounds could be used by carpet designers, and has produced interesting mathematical
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 Mathematical Biology Pages  Brandeis University
In contemporary biology there are many areas which depend heavily on rather advanced mathematics. This site demonstrates a few of these through Shockwave, Java, and JavaScript explorations. Dixon's Population Pages (exponential growth, nonlinear terms
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 Mathematical Calculations
Primers and JavaScript calculators for calculating continued fractions, triangle parameters, complex numbers, roots and the degree of complex numbers, the determinant of a complex matrix, and more. In Russian, with translations.
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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 Ideas in Science  Seven Stones Multimedia
A series of tutorial modules using JavaScript, Shockwave for Director, or Shockwave Flash: sphere packings, shapes and lattices; waves described, longitudinal and transverse wave lab, 2dimensional harmonic disturbance; 2dimensional vector components
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 Mathematical Interactivities  David Hellam
Interactive mathematical challenges, mostly written in Flash, covering number, algebra, data, shape, and space for K12 students. Site also includes a forum for teachers to discuss this sort of resource, its development, and its use in the classroom.
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 Mathematical Sciences Digital Library (MathDL)  Mathematical Association of America (MAA)
The MAA's Pathway project within the National Science Digital Library, this site combines the earlier MathDL and Math Gateway sites. The online publication Loci continues the tradition of the three earlier online publications (JOMA, DCR, and Convergence).
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 Mathematical Visualization Toolkit  Department of Applied Mathematics, University of Colorado at Boulder
Explore concepts of calculus with this set of visual and computational tools, which include linear system solvers; a matrix analyzer and matrix decomposer; function, vector field, and gradient field plotters; ODE and numerical integrators; numerical rootfinders.
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 Mathematica: Tour of Features  Wolfram Research, Inc.
Pages that guide you through an interactive demonstration of some of Mathematica's capabilities. New features; using the program as a calculator; power computing; accessing algorithms; building up computations; handling data; visualization; Mathematica
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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 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 Animated  Louis A. Talman, Dept. of Mathematical & Computer Sciences, Metropolitan State College of Denver
QuickTime animations to run or download: The Sine Curve; An Ellipse; An Elliptic Reflector; A Parabolic Reflector; The Moving Secant Line; Measuring Slope and Plotting the Derivative; The Cycloid; An Epicycloid; A Hypocycloid; A Simple Polar Area Problem;
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 Mathematics Applications  Arlen Strader
Areas of mathematics for which Strader has developed Java applets: Algebra, Probability, Statistics, Set Theory, and Geometry. Statistics, developed for an undergraduate behavioral statistics class, is the most developed; algebra and geometry are aimed
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 mathematics  art  nature  Anne Burns, Long Island University
Burns' gallery of "mathscapes" shows examples of mathematics used to create scenery. Experiment with her interactive Flash programs and applets: Möbius transformations; a Pythagorean tree; "algorithmic 'art'"; Lissajous curves; plants using string
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