- Quia! - The Learning Group
Create your own Java-enabled quizzes, home pages, and learning games to play over the Internet: enter your material into a form, select a few options, and press a button. Games have been created and are available for browsing in mathematics, as well as:
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- Quizma --> Matemática Cálculo Robótica - Harold Suárez Guzmán
In Spanish: Clases y Orientación en Matemáticas Cálculo y Robótica. Fórmulas - Demostraciones - Ejercicios - Ejemplos - Cálculo Interactivo. Algebra, Logaritmos, Trigonometría, Geometría, Estadística, Ecuaciones, Problemas de Planteo, Funciones, Geometría
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- Rafael Pacheco - Rafael Pacheco
In Portuguese: lessons and materials centered on high school geometry.
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- Rainforest Maths - Jenny Eather
Flash-based interactive mathematics activities with an Australian rainforest theme, for grades K through 6. Topics include: Number & Number Systems; Operations & Calculations; Strategies & Processes; Patterns & Algebra; Measurement; Space & Geometry;
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- The Rappin' Mathematician - Alex Kajitani
The Rappin' Mathematician provides teachers and students with rap songs about math. Two CDs available separately or together; samples and testimonials available free on the site.
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- Reading a Protractor or a Ruler - Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about reading a protractor or a ruler, such as "What do the little lines on a ruler stand for?"
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- Real World - Lesson Ideas: Math; Teachnet.Com
Activities: Buy Groceries; Plan Christmas Vacation; Credit Cards for Kids; Who's Average?; Carpet Your Classroom; Division from a Printer's Viewpoint.
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- Real World Math - Thomas J. Petra
Lessons that use Google Earth to teach math include Oil Spill Estimates and Scientific Notations; Iditarod Challenge and Typhoon Project; Four Color Map and Mazes & Labyrinths; Crop Circles and Fractal Measurement; Lunar Sports and Rockets. Each lesson
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- Real World Math Via the Internet - Wendi Fein, M.A., Heritage Online
K-12 math using real world problems and data that will support interdisciplinary teaching of science, social studies, history and business. Teachers in this course take advantage of the Internet for class discussions and to access material, and prepare
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- Recommended Mathematics Literature - International Mathematics Olympiad (IMO)
A page of readings recommended by the International Mathematics Olympiad in association with Amazon.com Books. Major sections include: Problem Solving; Collections of Mathematical (Competition) Problems; Anthologies and Surveys; Number Theory; Analysis;
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- A Recursive Process - Dan Anderson
Anderson's blog, which dates back to June of 2010, has included posts such as "Robocode & Math," "Standards Based Grading," "Cake:Frosting (A look into a proper ratio of real math:cool tech)," "Paper Towels WCYDWT (What Can You Do With This?)," "Two
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- Re-Inventing Fourth-Grade Mathematics - Jack J. Lopez; Kodak
A series of four related activities through which students acquired a firm, active knowledge of some of the basic terminology of Euclidean geometry, learning the vocabulary for describing various geometric shapes and transformations. Students photographed
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- Religious Beliefs Made Visual: Geometry and Islam - Jane Norman, Consultant, Metropolitan Museum of Art
Although the shapes and structures are based on the geometry of Euclid and other Greek mathematicians, Islamic artists used them to create visual statements about religious ideas. A discussion of the use of geometric motifs in Islamic art, with instructions
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- Replacing Iowa and New Hampshire (Math Chat) - Frank Morgan, MAA Online
Answer to the challenge: Propose a new system for selecting Presidential candidates. Winning answer by Joe Shipman: a year before the primaries start choose five congressional districts at random to have a primary the last week in
January and five more
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- Research Papers - The Geometry Center
Scientific papers written at the Geometry Center that use the unique aspects of hypertext to present information in a non-linear fashion. Many include movies or interactive pictures. A Tight Polyhedral Immersion of the Real Projective Plane with one Handle
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- Resource Bibliography: Children's Trade Books in Math - Beth G. Newhouse, Department of Mathematics & Statictics, Arizona State University
A selected bibliography of books for kids that teach and reinforce math concepts, organized by topic: counting and number, number operations, large numbers, money, geometry, algebra, miscellaneous topics. Originally compiled by Dorothy Giroux and Denise
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- Resource Room (Math Central) - University of Regina, Regina, Saskatchewan, Canada
French version: Centre de ressources. A service of Math Central that allows mathematics educators to share resources having to do with math teaching. Submissions are stored in a database that can be browsed by educational level and curriculum strand,
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- The Return of Odysseus and the Elements of Euclid - Andrew Wiesner; Classics Dept., Colorado College
The author's 1994 honors thesis, which attempts to shed new light on the origins of Greek mathematics.
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- Reuleaux Triangle - Paul Kunkel
An investigation into the Reuleaux triangle and its properties.
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- The Review Zone - Tina Velgos
In-depth software reviews for parents and teachers. CD-ROM Reviews in all major educational topic categories including Math and Science; also an alphabetical CD-ROM index of all titles reviewed, each title with the recommended age or grade level.
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- Rich Maths Tasks to Engage - East Midlands Maths Network
These teacher-made rich maths tasks in number, algebra, shape, and data handling emerged from a collaborative project run by Jon Stratford, Lead Practitioner for the Specialist Schools and Academies Trust (SSAT): arrangements, clock face, chocolate dilemma,
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- Riding on Square Wheels - Ivars Peterson (MathTrek)
A square wheel may be the ultimate flat tire. There's no way it can roll over a flat, smooth road without a sequence of jarring bumps. However, a square wheel can roll smoothly, keeping the axle moving in a straight line and at a constant velocity, if
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- Riverdeep | Mathematics - Riverdeep Interactive Learning Limited
Online resources for students, educators, and parents, that build on Riverdeep Interactive Learning's courseware and interactive simulations. Read about or demo Destination Math, a curriculum on CD-ROM in Basic Mathematics, Pre-Algebra, and Algebra I
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- Robert J. Lang Origami - Robert J. Lang
Lang has catalogued and diagrammed over 400 models, combining aspects of the Western school of mathematical origami design with the Eastern emphasis upon line and form. Read about origami mathematics, which mathematically describe the underlying laws
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- Rocket High (SMILE) - Elizabeth Kelly, Pilsen Community Academy
A lesson for grades 7-8 designed to reinforce students' measurement skills by having them manipulate a launcher to create specific angles, introducing them to the concept of tangents. From the Recreational and Creative Math section of a collection of
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- Rolling and Learning® with tri-square dice - Creative Enterprises, Inc.
A book describing math games to be played with 14-sided dice, suitable for grades K-6 or 8. Order form available on the web.
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- Room 8 Geometry Book - Ms. Woods' First Grade
Shape drawings by first-graders: Prelude; Shapes - Triangles, Circles, Ovals, Squares, Rectangles, Diamonds, Pentagons, Hexagons, Octagons, Other Shapes; Forms - Cubes, Rectangular Prisms, Pyramids, Spheres, Cylinders, Cones; Concepts - Corners, Angles,
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- Rosebush Math Line Puzzles - Math Forum
Three puzzles: 1) plant 7 rosebushes so that they form 6 straight lines with 3 rosebushes in each line. 2) plant 10 rosebushes in 5 straight lines with 4 bushes in each line. 3) plant 19 rosebushes in 9 straight lines with 5 bushes in each line. Questions,
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- Rouse Ball's Fallacy - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A famous fallacy by Rouse Ball now implemented in Java. A proof that an obtuse angle is right. How can that be?
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- R. S. Schaeffer - Randy S. Schaeffer, Math & Computer Science, Kutztown University of Pennsylvania
Schaeffer teaches a course called "Methods of Teaching Secondary Mathematics." Download the lessons created by his students that call on Geometer's Sketchpad, graphing calculators, and Microsoft Excel. Lesson topics address parallel lines, box and whisker
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- Rungs and Vineyards - Paul Kunkel
Investigations of two interesting visual effects seen from a moving automobile. It includes two interactive perspective drawings, and a discussion of the
cylindrical and planar projections used to create them.
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- Sacramento Area Math Help and Tutoring - Just Math Learning Centers
Just Math provides math help, tutoring and SAT prep for Sacramento area children through college students. Skills training in elementary math, algebra, geometry, and calculus.
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- Salinon: From Archimedes' Book of Lemmas - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A description of Archimedes' application of propositions from the second book of Euclid's Elements to mathematical proofs. An interactive Java exploration is provided.
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- Saltire Software
Mathematical technology for industry and education. Saltire Software's core technologies are constraint-based interactive geometry systems, symbolic algebra, and optimization, with products for mechanical engineering, mathematics education and layout
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- San Diego Math Tutor - Juan Castaneda
Math Tutor in San Diego. Offering test preparation and help with Algebra, Calculus, Geometry, Trigonometry, and Statistics.
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- San Diego Tutor
A San Diego-based in-home tutoring company, San Diego Tutor offers a Scholarship program for clients who can't afford high school math and science tutoring.
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- The Sands of Time - Troy Jones
The author uses ridges in piles of salt to model geometric concepts. This page features an article (PDF format), PowerPoint presentation, Geometer's Sketchpad file, and textbook reference for a classroom exploration of such concepts.
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- Sangaku - Hiroshi Kotera
Click on the map of Japan to see photographs of sangaku -- Euclidean geometry theorems rendered as colored drawings on wooden tablets, and hung in shrines or temples -- dating to the Edo period (1603-1867). Also, learn how to use counting rods, called
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- Sangaku, Japanese Temple Geometry - Tony Rothman, Princeton University
For centuries in Buddhist and Shinto shrines, Japanese have hung wooden tablets containing mathematical problems. Read PDF or PS downloads of a tutorial on the inversion method for solving Sangaku, or of the article "Japanese Temple Geometry," which first
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- Sangaku: Reflections on the Phenomenon - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A collection of sangaku problems with Java simulations and complete solutions, preceded by an introductory article that promotes an unorthodox view point on the wonderful phenomenon of Temple Geometry.
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- The Saqquara Ostrakon - A. D. Conner
An article with background history and a new analysis: A unique 3rd Dynasty (~2600 B.C.) Egyptian artefact thought to be an architect's drawing has heen re-evaluated by the author and the geometry reveals surprising results.
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- SAT Free Math Practice - Roland Mfondoum
Download free SAT prep math worksheets, take auto-scoring quizzes online, and watch videos on algebra and functions, factorization, polynomial expression expansion, linear equations and inequalities, quadratic equation solving, numbers and operations,
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- SAT Math Section Overview - SATPeer
Overviews of the geometry and algebra found on the SAT. SATPeer also posts articles of standardized test-taking strategies, review guides, and tools.
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- Saturday Academy
Saturday Academy (SA) "gives kids learning experiences that get them excited about school, help them explore potential careers, discover their intellectual possibilities, and teach them to be lifelong learners." Targeting the youth and profesionals of
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- Saxon Publishers, Inc. - Harcourt Achieve
Saxon publishes educational textbooks and other teaching materials for the primary and secondary education markets (Grades K-12) as well as for the home study market. The Saxon method of teaching math stresses "fundamentals." Site includes lists of inservices,
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- School Maths - Gurov Boris
Free Russian-language math lessons, with examples of solving tasks and pictures.
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- Science and Math Initiatives (SAMI)
A database/clearinghouse of resources, funding, and curriculum for rural math and science teachers. List, search by title or description, or browse math resources by category. Originally a project of the Boulder Valley School District, Boulder, Colorado,
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- Science Animations - Peet van Schalkwyk
Science and Maths animations done in Macromedia Flash. These animations are free, interactive, 3D and dynamic.
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- science-to-touch - Jürgen Richter-Gebert
Projects for interactively visualizing science, from one of the co-authors of the Cinderella geometry software package: iOrnament, a drawing and explanation app for the 17 crystallographic wallpaper groups; ix-quadrat, a museum exhibit of symmetry, Escher,
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- SCORE Mathematics Lessons - Jim Shaver, Schools of California
Lessons by teachers that reflect California's Mathematics Framework and the NCTM Standards, organized by their main strands with links to descriptions of the strands: Functions, Algebra, Geometry, Statistics and Probability, Discrete Mathematics, Measurement,
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The Math Forum is a research and educational enterprise of the Drexel University School of Education.