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  All Sites - 1752 items found, showing 1201 to 1250

  1. Packing Pentominoes - Mark Michell
    For rectangles with a given ratio of height to width, what is the smallest rectangle that will allow the construction of a complete set of pentominoes? ...more>>

  2. Packing Videotapes - NASA Lewis Learning Technologies Project
    Roger had to pack videotapes 10 to a box. If he had 178 tapes of one kind and 121 of another kind, how many boxes would he need in order to pack them all and not mix the different types? A detailed answer is provided. From NASA's 9th Grade Math Proficiency ...more>>

  3. Paginedimatematica - Bruno Tomaino
    In Italian: Analisi, trigonometria, equazioni differenziali, test a risposta multipla. ...more>>

  4. Palindromic Numbers and Other Recreational Topics - Patrick De Geest
    Many odd facts about big (and little) numbers, including circular primes and palindromic triangulars, tetrahedrals, squares, cubes, and primes. Also assorted odd puzzles, etc. ...more>>

  5. Panthera's Puzzle Contest - Dr. Amy Galitzer; Puzzle University
    A weekly contest of math, logic, and word puzzles sponsored by the American Mathematical Society and the University of Maryland Mathematics Department. You can submit your own puzzle for the next contest by signing up to participate, or simply read the ...more>>

  6. The Paper Challeran - Ryosuke Ito & TOSS
    Starting with a score of 1, trace a route through the Paper Challeran. Add to, multiply, or subtract from this score, as indicated at every edge along the way. Compete by registering scores online. Numbers around each block change every month. Find rules, ...more>>

  7. Parent's Page - Chicago System Initiative (CSI)
    A list of informative sites for parents who have questions about parenting and how to get involved in their children's education. Topics include Family Math (a page on math education); Helping your child learn math; Math and Your Child (information on ...more>>

  8. Pascal's Triangle using Clock Arithmetic - Jay's Corner
    Exploring Pascal's triangle when the modulus is a prime; when the modulus is a power of a prime; and when the modulus has at least two different prime divisors. From mod 2 to mod 12, illustrated. (See also Part II.) ...more>>

  9. Passalgebra.com
    Pass algebra with this online study guide. Practice with hundreds of problems, with answers worked out step by step. Examples of study guide and exercises provided. $27 for 1 year; step-by-step instruction for $2.50/problem. ...more>>

  10. Path Puzzles - Erich's Puzzle Palace; Erich Friedman
    Sixteen path-through-a-grid puzzles; can you fill in the correct path? Answers provided. ...more>>

  11. Pat's Math & Problem Solving Links - Pat McQuatty
    Site recommendations from the math consultant for the Western Quebec School Board. See, in particular, Special Days (Hundredth Day of school, Math with the number 2000 - twenty suggested math activities for the year 2000). Also math-related links for ...more>>

  12. Patternbee Multiplayer Spatial Reasoning - Jordan Pollack
    In this version of tangrams, pairs of learners create the puzzles for each other to solve, which can be at different levels of difficulty. Requires free registration to play, as this is an educational psychology research project. ...more>>

  13. Patterns and Magic Squares - Recmath
    This page looks at a particular subset of Magic Squares, those of order four which are 'continuous' (also known as pan-diagonal, Nasik and Jaina). It explores the patterns possible when the numbers in these kinds of squares are represented by a set of ...more>>

  14. Patterns in Mathematics (Teachers' Lab) - Annenberg Media
    This lab, based on the professional development series and workshops broadcast on the Annenberg/CPB Math and Science Project Channel, explores patterns as they occur in logic, numbers, and words, focusing on how to develop "function sense" without simply ...more>>

  15. Paul's Page of Pi - Paul A. Gusmorino 3rd
    Most of the content of this site is focused on methods of calculating pi: Archimedes' method; Wallis' formula; Gregory, Leibniz, and Machin; Newton's fluxions; and Paul's 8192 digits. Also Pi Poems, Music of Pi, and Pi Links. ...more>>

  16. paulus gerdes's Storefront - Paulus Gerdes
    Purchase print editions or download Gerdes' titles, some also available in Portuguese, Dutch, and French: Drawings from Angola: Living Mathematics, Enjoy Puzzling with biLLies, Puzzle Fun with BiLLies, The Bisos Game: Puzzles and Diversions, Introducing ...more>>

  17. PBS Teachers: Math - PBS Teachers
    The Public Broadcasting System's Math Service, combining computing and telecommunications technologies to offer interactive data services and interactive video and voice services for education based on the NCTM Standards. The site features: resources, ...more>>

  18. PCTM Online Puzzle of the Week - Judy Brown; Pennsylvania Council of Teachers of Mathematics
    Weekly illustrated math puzzle online competition from 1996-97, with an archive of past puzzles. Since 1997 this project has moved to the Math Forum to become its Middle School Problem of the Week. ...more>>

  19. Pédagogie - Olivier Batteux
    Maths-Rix et Labymath sont des logiciels présenté sous forme de labyrinthe où il faut choisir des portes qui correspondent à des choix opératoires en vue des résoudre des problèmes concrets. Découvre ...more>>

  20. The Penrose Puzzle Room - World of Escher
    Mathematically based Pentaplex Puzzles designed by Sir Roger Penrose, the well-known English mathematician. The original 45 piece Gamebirds, 190 piece Perplexing Poultry - 2 designs, 500 piece Jigsaw Puzzles - 4 designs. ...more>>

  21. Pentangle - U.K.
    To buy: wooden, mechanical, interlocking, mathematical and logical thinking puzzles; brainteasers, games, toys, gifts, three-dimensional puzzles, promotional items, and collectors' puzzles, ...more>>

  22. Pentominoes - Robert Simms; Dept. of Mathematical Sciences, Clemson University
    A Java applet spatial relations game. Try to place the pieces in the box with no overlapping. With detailed instructions, source code, development stages of the applet, and related links. ...more>>

  23. Pentomino - K.S.O. Glorieux Ronse, Belgium
    An introduction to polyominoes, with a site-wide focus on pentominoes. The site features puzzles and contests, as well as galleries of pentomino constructions and problems, such as how to form letters of the alphabet and silhouettes of zoo animals. Available ...more>>

  24. Perfect Problems - Vasek Chvátal
    Unsolved problems on perfect graphs, a collection for people with at least a basic knowledge of the subject. Contents include: Perfection of special classes of Berge graphs; Recognition of special classes of Berge graphs; Decompositions of perfect graphs; ...more>>

  25. Periodic Points of Quadratic Polynomials - Cut the Knot!, Alexander Bogomolny
    The main purpose of the Mandelbrot set is to index Julia sets corresponding to various values of the parameter c... iterations inside M evolve differently depending on the value of c. (You may explore some iterations via the applet supplied.) An interactive ...more>>

  26. Perplexus - flooble
    A large archive of mathematically inclined puzzles and problems displayed by category. Includes logic, number theory, geometry, probability and other problems. All are rated by difficulty and quality and discussed in depth by visitors. Most with solutions. ...more>>

  27. A Personal-Math-Online-Help.com - Marko Ignjatijevic
    Practice the basic operations of adding, subtracting, multiplying, and dividing single-digit and multi-digit positive whole numbers. Submit your answers online to check them, or click the "show solutions" buttons to see the correct answers; the "try again" ...more>>

  28. 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>>

  29. Peter Winton's Radical Home Page
    Math topics include puzzles, a gallery of fractals, and Visual Basic programs to download (count the grains of rice on a chessboard, or graph different curves). ...more>>

  30. Petran Mathematics - Petro Greffrath
    From South Africa: grade 11 and 12 math problems, tests, and answers. Teachers may register their students (R360/year for 1-10 students; the Petran academic year starts 1st February and ends 31st January the following year). Includes access to an English-Afrikaans ...more>>

  31. Phenomenological Pizza (SMILE) - Robert Foote, Disney Magnet School
    A lesson for the middle grades designed to teach students to calculate the area of a circle, find how many two-topping pizzas can be made using 14 toppings, and determine cost per square inch. From the Geometry and Measurement section of a collection ...more>>

  32. The Physics Classroom - Tom Henderson, hosted by StudyWorks! Online
    A physics tutorial for high school students, including explanations, animations, quizzes, and practice problems. ...more>>

  33. Physics Problems for the Next Millennium - David Gross, Institute for Theoretical Physics, University of California, Santa Barbara
    The ten most important unsolved problems in fundamental physics, as formulated by participants of the University of Michigan's Strings 2000 Conference: Are all the (measurable) dimensionless parameters that characterize the physical universe calculable ...more>>

  34. Pi Across America - University of Phoenix
    Join the "Pi Pilot" for a "journey to one of humankind's most intriguing and celebrated numbers." Activities include "The Great Chain of Pi," "Taking Pi to Court," "Your Place in Pi," "Freehand Circle Drawing Competition," "Pi Party," and "Pi Bee." Scenario ...more>>

  35. Pi and Square Roots - Don Cohen (The Mathman)
    Kohler (a 5th-grader) follows Archimedes. A graph and a program for iterating the square root of 10. Sample problems with some answers from Chapter 10 of Don Cohen's worksheet book. ...more>>

  36. Pi and the Fibonacci Numbers - Ron Knott
    Contents: How Pi is calculated (Measuring the steepness of a hill; The tangent of an angle; The arctan function; Gregory's Formula for arctan(t); Radian measure; Gregory's series and pi; Using Gregory's Series to calculate pi; Machin's Formula; Another ...more>>

  37. Pick's Theorem - Cut the Knot!, Alexander Bogomolny
    A description with proof of Pick's theorem, including links to further pages including exercises with an applet for the geoboard, Farey Series, and Stern-Brocot Tree. An interactive column for MAA Online that uses a Java applet to simulate a puzzle or ...more>>

  38. 'Picture This': Tangram Puzzles - Sarah A. Keith
    Each week a new tangram puzzle is featured in "Picture This" in the Sunday cartoon section of newspapers worldwide. Children are invited to mail their tangrams for possible inclusion, and to be featured in the Kid's Gallery on the Web. Read the legend ...more>>

  39. The PiFactory - David Whitfield
    Revision notes, boardshots, and Excel worksheets to download, from when the author used to teach in North London. The PiFactory includes an open-source assessment suite, classroom resources, and concept maps. The PiFactory conveniently pulls together ...more>>

  40. The Pi Pages - Centre for Experimental and Constructive Mathematics (CECM)
    "Pi is one of the few concepts in mathematics whose mention evokes a response of recognition and interest in those not concerned professionally with the subject. It has been a part of human culture and the educated imagination for more than twenty five ...more>>

  41. The Pi Trivia Game - Eve A. Andersson
    Test your knowledge of history, mathematics, and even a little physics. Here are 25 (given to you 5 at a time) pi-related questions, picked randomly from a pi question database. Also at http://cid.com/~eveander/trivia/. ...more>>

  42. Plane Geometry Web Pages - David Jaffe
    Materials from a geometry course originally taught to future middle and high school teachers. Using definitions, theorems, proofs, and examples, the site introduces mappings; isometries and similarities; angles and trigonometry; congruence and similarity; ...more>>

  43. The Playground of Mathematics - Cilenia
    JavaScript practice in addition, subtraction, multiplication, division, time, and comparison ("greater than, equal to, or less than"). Select difficulty, complexity, position of unknown, duration, and other settings. Also available in Russian, Italian, ...more>>

  44. 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>>

  45. POLYA: Cooperative Solutions of Difficult Problems in Elementary Mathematics - Paul Yiu and Xiaodong Zhang, Moderators; Department of Mathematical Sciences, Florida Atlantic University
    An archived discussion group for the cooperative solution of difficult problems in elementary mathematics through calculus, "preferably non-technical in nature." ...more>>

  46. Polyhedron: An application in solid geometry - Stelian Dumitrascu
    Software based on "deduction-free geometry," which allows the user to perform various actions upon solids as if holding these solids in your hands. It simulates a number of tools, such as the ruler, protractor, setsquare, compass, bisector, saw, and eraser. ...more>>

  47. Polymath Love - Gary Smith
    Free and low-cost Macintosh software for middle school mathematics: over 200 programs written by a classroom teacher. Program descriptions and some free programs are available to download from the Web, or order the CD-ROM for $100 U.S., which includes ...more>>

  48. Polyominoes - Cynthia Lanius
    What do dominoes and Tetris have in common? Both games use pieces that are formed of squares placed side by side. Dominoes use 2 squares; Tetris pieces (or tetrominoes) use 4 squares. Mathematician Solomon Golomb, in a 1953 talk at the Harvard Mathematics ...more>>

  49. Polyominoes - Kevin Gong
    Information and Polyominoes software to download. A polyomino is a piece made up entirely of squares connected edge-to-edge. For example, a domino is a polyomino with 2 squares. In this program, you can use pentominoes, tetrominoes, trominoes, hexominoes, ...more>>

  50. Polyominoes - Slavik Jablan
    A plane topological disk (i.e. a plane region without "holes") consisting of n edge-to-edge adjacent squares is called a polyomino. This site offers a shape description: in every border square cell of a polyomino we could introduce two-sided mirrors perpendicular ...more>>


 
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