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  All Sites - 288 items found, showing 201 to 250

  1. Pentomino puzzles - Mike Frost
    Rotate pentominoes to tile an 8×8 grid. This JavaScript-powered online puzzle lets you select from a variety of decorative patterns and graphic designs. ...more>>

  2. Pentomino Relationships - Adrian Smith
    The site describes how pentominoes (twelve pieces of wood, each a different shape and each made of five cubes) fit together into rectangles or cuboids, as well as the subsequent challenge of finding as many other solutions as possible from the one just ...more>>

  3. Perfection - Greg Lobanov
    This mobile game for iPhone and Android handheld devices presents convex and concave polygonal shapes for players to cut into the outlines indicated. Available directly from the iTunes app store and Google Play. ...more>>

  4. Peter Ash's Thoughts on Math and Education - Peter Ash
    Musings on doing and teaching mathematics, book reviews, and math problems both elementary and advanced from the creator of Cambridge Math Learning. Blog posts, which date back to August of 2007, include "Very Proper Fractions"; "Physical Models for Non-Euclidean ...more>>

  5. PhD! ... plus epsilon - Adriana Salerno
    Having earned her math doctorate in 2009, Salerno writes "about some of the challenges I've encountered while teaching, attempting to do research, and the lesser known aspect of 'service'" on institutional committees. In addition to blogging about "publish ...more>>

  6. Photos by Paul Halmos - Mathematical Association of America (MAA)
    Snapshots taken by Paul R. Halmos of notable contemporaries, academics, and other intellectuals of the 20th century. Search or browse the tagged collection of pictures, each of which includes a brief note about the subjects photographed in Halmos' own ...more>>

  7. The Pi-Dye T-Shirt Shop - Josh Cummings
    Purchase from a variety of pi and other math t-shirts, mugs, clocks, etc., including the famous MathSpeak t-shirt. ...more>>

  8. PiNation.com - Hugh Bell
    A site to "... just enjoy pi. Leave the math aside. Don't even think about the circumference of a circle." Create unique representations of the decimal expansion of pi with the Pi-Art Tool: choose the color for each digit, the number of decimal places, ...more>>

  9. The Pi Song - Hester Lewellen
    Pi Song audio and sheet music. This musical scale is aligned to the digits of pi. ...more>>

  10. Pi Symphony - Lars Erickson
    Lars Erickson composed the Pi Symphony in the early 1990's. The themes and melodies of this 14 minute orchestral piece are directly based on pi's first 32 digits, with countermelodies developed from the number e. Listen to samples of Erickson's musical ...more>>

  11. Planet Perplex - Stefan Van den Bergh
    Collection of optical illusions, impossible objects, visual puzzles, and hidden images. ...more>>

  12. The Platonic Solids Information Site - Dan Radin
    Information, computer graphics, a computer-animated video, teaching tools, and links pertaining to the three-dimensional geometry of the polyhedron in its many forms. Radin focuses particularly on the five Platonic solids--the tetrahedron, the cube, the ...more>>

  13. A Playground of Thoughts - Takasugi Shinji
    Takasugi's "Number Systems of the World" lists dozens of languages; how to count from zero to one hundred in each; and the mathematical meaning of the expressions for each numeral. For example, the French say "93" with quatre-vingt-treize, which means ...more>>

  14. PNC Christmas Price Index - PNC Bank
    PNC calculates the Christmas Price Index each year as a fun, lighthearted way to look at the increasing cost of goods and services in the song, "The Twelve Days of Christmas." Areas of their site include a video presentation, an interactive chart, and ...more>>

  15. POP Mathematics (Mathematics Archives) - University of Tennessee, Knoxville (UTK)
    Did you ever wonder what made your teacher get so excited about some topic in Mathematics? On this page the Math Archives site collects items about Mathematics that may explain this weird behavior. Also included on this page are links they couldn't figure ...more>>

  16. The Power of One - Robert Matthews, The New Scientist
    Benford's law demands that around 30 per cent of the numbers in a given data set will start with a 1, 18 per cent with a 2, right down to just 4.6 per cent starting with a 9. This essay provides a mathematical history behind the counterintuitive law, ...more>>

  17. ProFootballFocus.com - Neil Hornsby
    Which tight end (TE) is the best blocker for run and for pass? Which cornerback (CB) is the best run defender? Which tackle (T) was the worst pass protector in 2010? ProFootballFocus.com offers in-depth and unique information on professional football ...more>>

  18. Project Euler - Colin Hughes
    Browse hundreds of challenging problems that require mathematical insights as well as computer and programming skills to solve. Popular puzzles include "Add all the natural numbers below one thousand that are multiples of 3 or 5," "By considering the ...more>>

  19. project Eureka
    project Eureka is a collaboratively edited site for problem solvers/creators—regardless of problem or field. Add problems with quantifiable results; or group problems in a test. ...more>>

  20. Projectile Dynamics in Sport - Colin White
    Treatise of a range of sports equipment. Authored by a Principal Lecturer at the University of Portsmouth, Projectile Dynamics in Sport begins with a mathematical treatment of the general principles of flight, examining balls, discusses, javelins, shot ...more>>

  21. Pure Numbers Daily Blog
    New equations every day, made of the individual numerals in the date. Daily entries in this blog, launched on 11 October, 2012 (10/11/12), preserve the order of the individual digits using arithmetic, geometry, trigonometry, combinations and permutations, ...more>>

  22. Puzzles
    A blog of math puzzles. Post your answers in the comments sections. ...more>>

  23. Puzzles - Martin Watson
    Blogs, comments, musings, design sketches, and photographs of mechanical puzzles by an avid collector and craftsman. Puzzle news, the author's own burrs (Watson's wormhole, digigrams, Dutch cubist), in-depth explorations of manipulative puzzles (Puzzles ...more>>

  24. Puzzles of Leonid Mochalov - Leonid Mochalov
    Numerical and visual puzzles, some in Russian only, most in English. ...more>>

  25. Puzzle Toons, The Citizen Scientist - Brian Mansfield
    A comic strip devoted to puzzles, mind benders, and brain teasers. The subject matter of the puzzles ranges from mechanical devices and geometry to astrodynamics, chess, and billiards. Read back issues of Mansfield's column, dating to its inception in ...more>>

  26. QuantumBrainBenders - Joel Klebanoff
    A series of puzzles: find a series of numbers in a grid that add to the given sum. A new puzzle for each of three skill levels is posted daily. The site also includes an archive of previous puzzles. ...more>>

  27. The Quest for the Holy Value - Kjetil Valstadsve
    Finding the correct value of pi. The likelihood of any random two integers having 1 as their greatest common divisor (no factors in common), has been proved to be 6 divided by pi squared - the numbers are prime in relation to each other. According to ...more>>

  28. Random (Blog) - Neil Bickford
    Bickford writes "about mathematics, cellular automata, programming, Rube Goldberg Machines, and overall randomness." Posts of the self-described "mathematician/programmer/scientist," dating back to May, 2009 -- when Bickford was 11 years old -- have included ...more>>

  29. Recreational Mathematics - MAA Online
    From the Mathematical Association of America's Basic Library List - a bibliography of articles (in print, not on the Web) on Recreational Mathematics: Games and Puzzles; Puzzle Collections; Contests and Problems; Martin Gardner; Miscellany. ...more>>

  30. reflectivemaths - Dave Gale
    Blog of "ideas as well as the odd resource" by an Advanced Skills Teacher (AST), SSAT Lead Practitioner and member of the TES Maths panel. Posts, which date back to December, 2010, have included "Mereside yr6 Daily Maths Challenge," "When Mathematicians ...more>>

  31. 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>>

  32. The RetroPsychoKinesis Project - Peter Moore and John Walker
    Retropsychokinesis (RPK) is the claimed ability of certain subjects to alter random data generated, but not examined, prior to the time the data are presented to the subject. Read about or run bell curve, clock face, or pendulum feedback programs (Java ...more>>

  33. Retrosheet
    Digitizing play-by-play accounts of Major League Baseball games from the past century through the present. Freely download event files, which detail "literally every play" in big league baseball; game logs; schedules; narratives, which provide text play-by-play ...more>>

  34. The Ri Christmas Lectures - The Royal Institution of Great Britain
    Register to watch the demonstration-packed, fun-filled videos that have formed a part of the British Christmas tradition for generations: "The natural history of a sunbeam," by George Porter; "Mathematics into pictures," by Christopher Zeeman; "Crystals ...more>>

  35. 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 ...more>>

  36. Roger Antonsen
    Site of the logician, mathematician, computer scientist, researcher, inventor, lecturer, science communicator, public speaker, and author of Logical Methods: The Art of Thinking Abstractly and Mathematically. Blog posts, which date back to 2013, have ...more>>

  37. Rubik's Games - Androsoft
    Dedicated to the first PC CD-ROM game from Erno Rubik, Rubik's Games contains 5 sub-games: Rubik's Classic, Cover Up, Paint War, Rubik's Playground and ZigThrough. Download the Rubik's Games Web Site Plugin plug-in or a demo of the Rubik's Game CD-ROM. ...more>>

  38. Ruth-Aaron Pairs and an Algorithm - Joe K. Crump
    A page on Ruth-Aaron numbers and a novel algorithm capable of generating very large ones (200+ digits). ...more>>

  39. Sam Loyd Official Site - The Sam Loyd Company
    This site is dedicated to introducing Sam Loyd and his puzzles to a whole new generation. Loyd was a famous puzzle inventor in the 1800s, till his death in 1911. Puzzles with answers, descriptions of famous puzzles for sale, FAQs and other information. ...more>>

  40. Sarah Glaz
    Teaching, research, books, and articles by the algebraist, ring theorist, and poet. See, in particular, the math poems of undergraduate students and Glaz's own poetry, which includes "Mathematical Modeling," "A Pantoum for the Power of Theorems," "I am ...more>>

  41. sarah-marie belcastro's home page - Sarah-Marie Belcastro
    From one of the authors of Making Mathematics with Needlework: "I seem to have become a topological graph theorist while I wasn't looking. I am also interested in convex and combinatorial geometry, algebraic geometry, topology, algebra, the geometry of ...more>>

  42. 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 ...more>>

  43. Science and Engineering Visualization Challenge - Science and the National Science Foundation (NSF)
    The annual Science & Engineering Visualization Challenge encourages cutting-edge efforts to visualize scientific data. Co-sponsors Science Magazine and the National Science Foundation (NSF) select winners in each of five categories: photographs, illustrations, ...more>>

  44. Science Cheerleaders
    Professional cheerleaders pursuing science careers who "playfully challenge stereotypes, turn everyone onto science by encouraging participation in citizen science activities, and inspire young women to consider careers in science, technology, engineering ...more>>

  45. SEMAA: Science, Engineering, Mathematics, and Aerospace Academy - NASA's Glenn Research Center; Cuyahoga Community College
    Created to expose historically underrepresented youth to activites in the fields of science, engineering, mathematics, and technology, SEMAA offers information about its classes and program as well as links and contact information. ...more>>

  46. A Set of Mathematical Equivoques - Ken Suman
    An original collection of mathematical equivoques, puns, and wordplays created to both amuse and to help students make mathematical connections with literature, linguistics, the arts, philosophy, etc. ...more>>

  47. Sierpinski Tetrahedron: A Metal Sculpture - Stan Goldade
    Pictures and background information on the sculpture, with some Sierpinski facts. Breckenridge Senior High School students welded 4,096 equilateral metal triangles together to form 1,024 tetrahedra to form a stage-5 Sierpinski Tetrahedron. It is located ...more>>

  48. Simons Foundation
    This private foundation advances the frontiers of research in mathematics, theoretical computer science, and theoretical physics. Simons Foundation grants have established post-doctoral fellowships, promoted collaboration between researchers, created ...more>>

  49. Snow Day Calculator - David Sukhin
    Enter a ZIP code and number of school days already canceled there due to inclement weather, and the Snow Day Calculator predicts the probability of an early dismissal or no school the following day. Sukhin originally developed his predictive calculator ...more>>

  50. Solve My Maths - Ed Southall
    Blog of "puzzling questions that purposefully minimalise the amount of information explicitly given," written by the author of Yes, but Why? Teaching for Understanding in Mathematics. Posts by the University of Huddersfield maths education specialist's ...more>>


 
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