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 Rectangle Pattern Challenges - Cynthia Lanius Examine different stges of rectangle patterns, and describe what you must do to get from one to the next. Observe the designs looking for patterns. Use the symmetry of the design to help you count. Organize your information into a table. On square grid ...more>> Rectangle Perimeter and Side Length - NASA Lewis Learning Technologies Project A rectangle with a perimeter of 24 inches might have adjacent sides measuring: 6 inches and 4 inches; 11 inches and 13 inches; 9 inches and 3 inches; or, 2 inches and 12 inches? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>> Rectangular Parallelepiped, Cube Formulas (Ask Dr. Math FAQ) - Math Forum Formulas for finding the surface area and volume of a rectangular parallelepiped and a cube. ...more>> Rectilinear Geometry (The Geometry Junkyard) - David Eppstein, Theory Group, ICS, UC Irvine An extensive annotated list of links to material on geometric problems defined on squares and rectangles, higher dimensional boxes, cubes, and hypercubes, right triangles and other right-angled figures, and "taxicab geometry" in which distances are measured ...more>> 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 ...more>> Recursos de Matemáticas en Internet - Flavio P. Información buscable, dividida en categorías que contienen enlaces comentados: altas, actividades, actualización, apuntes, buscadores, congresos, debate, enlaces, Escher, fractales, historia, lista general, Olimpiadas, publicaciones, ...more>> Recycling Topology - Ivars Peterson (MathLand) It's hard to miss the triangle of three bent arrows that signifies recycling. It appears in newspapers and magazines and on bottles, envelopes, cardboard cartons, and other containers. But have you noticed that there are two versions of this ubiquitous ...more>> Redecorator Fractal Wallpaper Manager - Seraline P/L, Sydney, Australia. A wallpaper manager, or randomizer, and image creator for Windows 95/98/NT/2000. Redecorator can change your desktop wallpaper as often as you like, creating seamless tiles and fractals. ...more>> Reference Notes - Department of Mathematics, Cal. State U. San Bernardino (CSUSB) Notes on set theory, symbolic logic, methods of proof, basic proofs, functions, relations, binary operations, and groups. Also, Math Tools for practicing modular arithmetic and truth tables, or for solving Diophantine equations. Search the Notes, or scan ...more>> Reflections on Deep Blue - Keith Devlin (Devlin's Angle) We generally assume that the ability to play a good game of chess requires intelligence when it comes to people. Why not for chess-playing machines as well? Well, here is one argument that shows that things are not so simple. One aspect of human intelligence, ...more>> Reform Calculus Resources - Harel Barzilai Many printable activities and worksheets, some with solutions, long-term student projects, capsules and tutorials, and resources for instructors including a sample second-semester calculus course with in-class groupwork activities, projects, and student ...more>> Regression Applet - R. Webster West, Dept. of Statistics, Univ. of South Carolina An applet designed to teach students the effect of leverage points on a regression line. Students may add points to the plot by clicking the mouse button. By adding points far from the existing line, the regression line changes considerably. This is particularly ...more>> Regular Polygon Formulas (Ask Dr. Math FAQ) - Math Forum Formulas for finding the area, perimeter, etc. of a regular polygon, and constructing regular polygons with compass and straightedge, in particular the pentagon. ...more>> Regular Polyhedra: Formulas (Ask Dr. Math FAQ) - Math Forum Formulas for finding the surface area, perimeter, volume, etc. of regular polyhedra: tetrahedron, cube, octahedron, dodecahedron, icosahedron. ...more>> Regular Solids - Jim Loy An elementary introduction to regular polyhedra, solid geometric figures with identical regular polygons as their faces and the same number of faces meeting at every corner (vertex). ...more>> 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 ...more>> Relatively Prime - Samuel Hansen A series of audio shows "all about the stories behind mathematics," as gathered from interviews with Fields Medalists, composers, "stand-up mathematicians," and others. Listen to hour-long segments "from the mathematical domain" such as "Chinook," about ...more>> Relative Prime Applet (MSTE) - Nicholas Exner; University of Illinois at Urbana-Champaign (UIUC) A Java applet that compairs pairs of numbers to see whether they are relatively prime. The main goal of this action is to demonstrate the theorem that the probability of two positive integers chosen at random being relatively prime is six divided by pi ...more>> Relativity - Brian K. Wegley; Glenbrook South High School, Glenview, IL High-energy high school physics: an open-ended investigative study of relativity. Site contains a summary, scenario, student pages, and useful Internet links, as well as a list of standards addressed, and assessment rubrics. Part of the Handbook of Engaged ...more>> 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 ...more>> Religious schools inspire math reasoning - B. Bower - Science News Online Students at ultraorthodox Jewish schools, who study mainly holy texts, outperform most students at mainstream schools on tests of geometric reasoning, perhaps because of the emphasis on reflection and considering different perspectives. ...more>> REL Network The network of ten Regional Educational Laboratories (RELs), serving geographic regions that span the nation, works to ensure that those involved in educational improvement at the local, state, and regional levels have access to the best available information ...more>> Remainder/Divisibility Puzzles - Math Forum, Ask Dr. Math Common Question A selection of answers to questions about remainder and divisibility puzzles, such as "Write 1,000,000,000 as the product of two numbers, neither of which contains any zeros" and "Arrange the digits 0 to 9 such that the number formed by the first digit ...more>> The Remarkable Number 1/89 - Robert Miner An overview of the Fibonacci series, interesting facts about it, and a sketch of the proof of why the decimal expansion of the fraction 1/89 contains all the Fibonacci numbers expressed as a sequence of decimal fractions, a fact discovered by Cody Birsner. ...more>> The ReMath Project - Research Academic Computer Technology Institute "Making sense of theory on learning mathematics with digital media," the ReMath Project developed an "Integrated Theoretical Framework on the use of digital media to represent mathematical ideas and generate mathematical meanings." In particular, learn ...more>> Renaissance Learning Math Software - Renaissance Learning, Inc. A tool for educators that provides fresh exam and worksheet questions using algorithms to generate unique new permutations each time you use it. It is designed to meet the latest NCTM assessment standards for grades 5-12 using performance assessment questions ...more>> 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 ...more>> Reply to Dr Mulase's review of Algebra: Themes, Tools, Concepts - Henri Picciotto Picciotto writes: "I would have preferred a more generous tone in Dr Mulase's criticism, but I have survived the reading of his diatribe, and I may have learned something from it. In this paper, I will respond to his main points, try to explain the approach ...more>> Report of a study on The TI-92 Symbolic Calculator in Norwegian Mathematics Education - Tor Jan Aarstad A study of the use of the TI-92 calculator at Strand upper secondary school in Norway. ...more>> Report to the President on the Use of Technology to Strengthen K-12 Education in the United States, March 1997 - President's Committee on Science and Technology A paper by the Panel on Educational Technology. Sections include: Introduction; Potential Significance; Hardware and Infrastructure; Software, Content and Pedagogy; Teachers and Technology; Economic Considerations; Equitable Access; Research and Evaluation; ...more>> The Republic of Mathematics - Gary E. Davis The Republic of Mathematics™ was founded "to promote happy and productive mathematical experiences for all learners, democratize the learning and teaching of mathematics, and help empower students and teachers in their engagement with mathematics." ...more>> Resampling Stats Resampling is a statistical method of drawing repeated samples from the given data to determine the value of a parameter of interest. Resampling Stats is a computer program offered for sale (30-day free trial, discount for personal or academic use). The ...more>> Research and Expository Papers by Charles Wells and others - Charles Wells; Case Western Reserve University Research and expository publications concerning mathematical writing, such as Communicating Mathematics: Useful Ideas from Computer Science; Varieties of Mathematical Prose; Communicating Logical Reasoning; and Handbook of Mathematical Discourse, which ...more>> Research for Better Schools (RBS) An educational R&D firm serving the Mid-Atlantic region, currently operating the Mid-Atlantic Eisenhower Consortium for Mathematics and Science Education. RBS offers educational development, evaluation, technical assistance, and training services ...more>> Research in Math Education - Mathematics Education at The Math Forum Research into the learning and teaching of mathematics: methods; K-12 and college undergraduate education (articles, conference sessions); bibliographies; centers; studies; special interest groups; organizations and journals. ...more>> Research in Practice - Ben Blum-Smith A "math education research digest" by a former teacher, private tutor, and faculty member of Bard College's Master of Arts in Teaching program who went on to pursue his doctoral degree from the Courant Institute of Mathematical Sciences at New York University. ...more>> Research - National Council of Teachers of Mathematics (NCTM) The National Council of Teachers of Mathematics (NCTM) offers resources that connect math education research to the classroom. Sections include: Research Presession, Clips and Briefs, Journal for Research in Mathematics Education (JRME), Research Agenda ...more>> 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 ...more>> Resource Material - Spencer, Chan; Univ. of Toronto Mathematics Network A collection of resource material for use in classes or extracurricular activities in high schools: answers, explanations, and expositions of some common but deep math questions. In the process of answering three basic questions, this area delves into ...more>> 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, ...more>> Resources for Mathematics Education for Biology Students - Louis J. Gross, University of Tennessee A page of links to WWW resources for mathematics training for biology students, collected with assistance from the Education Committee of the Society for Mathematical Biology, an extension of the Quantitative Curriculum for Life Science Students project. ...more>> Resources for Spreadsheet Analysts - Thomas A. Grossman, University of San Francisco Add-ins, templates, standalone software and resources that assist in building models, performing analysis, distributing models to other people, compliance, and managing spreadsheet information systems and spreadsheet model assets. Categories of resources ...more>> Resources for Tan's Applied Calculus - S.T. Tan; Brooks/Cole Publishing Company Chapter-by-chapter exercises, practice quizzes, practice tests, suggested group projects, review questions, and other sample resource materials for students and instructors using Tan's Applied Calculus, Fourth Edition. Also, step-by-step instructions ...more>> Resources for Tan's Applied Finite Mathematics - S.T. Tan; Brooks/Cole Publishing Company Chapter-by-chapter exercises, practice quizzes, practice tests, suggested group projects, review questions, and other sample resource materials for students and instructors using Tan's Applied Finite Mathematics, Fifth Edition. Also, step-by-step instructions ...more>> Resources for Tan's Calculus for Managerial, Life and Social Sciences - S.T. Tan; Brooks/Cole Publishing Company Chapter-by-chapter exercises, practice quizzes, practice tests, suggested group projects, review questions, and other sample resource materials for students and instructors using Tan's Applied Calculus for Managerial, Life and Social Sciences, Fifth Edition. ...more>> Resources for Teachers - Lawrence Hall of Science (LHS) The LHS at the Univ. of California at Berkeley has been a pioneer in pre-college science and mathematics programs that emphasize the "learning by doing" approach, offering many different types of educational programs for all ages. Each of the Lawrence ...more>> Resources for Teachers of Developmental Mathematics (MAA) - Mathematical Association of America A page assembled by the ad hoc Subcommittee on Developmental Mathematics, with the beginnings of an annotated bibliography of articles related to developmental mathematics, including articles on the adult learner of mathematics and experimental programs ...more>> Resources for Undergraduates in Mathematics (MAA) - Mathematical Association of America Answers and links to sites that answer questions such as: What can I do with a math major? Where can I find help on finding the first job? What has been the experience of other students? What are some other resources? ...more>> Ressources en français - French Language Math Resources - Math Forum Mathematics and math education resources available online in French, collected by the Math Forum. Categories: Articles and Publications (Includes excerpts from the journal abraCAdaBRI); Lessons, Activities, Teaching Materials (Lesson plans, online courses, ...more>> Rethinking Schools Online: An Urban Educational Journal Founded in 1986 by activist teachers, Rethinking Schools is a nonprofit, independent publisher of educational materials that advocates the reform of elementary and secondary education, with a strong emphasis on issues of equity and social justice. Having ...more>>
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