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  All Sites - 1734 items found, showing 1251 to 1300

  1. Planetary Gear Simulator - Ryan Cahoon
    Dynamically solves for the number of planets and carrier speed, sun gear teeth, or ring gear teeth as you adjust the sliders to vary the other parameters. ...more>>

  2. Planetcalc - Anton Egoshin
    More than a hundred free calculators on math topics ranging from area of a triangle by its coordinates to total squares (the number of squares in given rectangles). Categories of others include date and time, health, computers, engineering, finance, navigation, ...more>>

  3. Planetqhe (Probabilistic Learning Activities Network) - David Kay Harris
    Out-of-the-ordinary probability problems. The site focuses on using methods of probability to solve counter-intuitive problems and deepen students' understanding and competence in the domain. Sections include: a brief history and rationale of the site; ...more>>

  4. Plastelina Logic Games - Plastelina
    Free Flash games include classic constrained "crossing" problems, such as the puzzle of ferrying a wolf, a sheep, and a head of cabbage across a river in a boat that only holds any two of them at once, without leaving the wolf and sheep alone in each ...more>>

  5. Platonic Solids - Buckley; Metropolitan School District of Pike Township, Indianapolis, IN
    A demonstration of the construction of the five Platonic Solids from Book 13 of Euclid's Elements. Contents include: Prop 13 - pyramid; Prop 14 - octahedron; Prop 15 - cube; Prop 16 - icosahedron; Prop 17- dodecahedron; and a Glossary Of Terms. ...more>>

  6. Platonic Spheres (Dr. Neubert's Website) - Karl-Dietrich Neubert
    A systematic approach to generating the Platonic bodies, using Java applets. A major aspect is the inclusion of Descartes' concept of angular deficit as a measure of curvature. An extension of Platonic bodies to Platonic spheres. ...more>>

  7. Play a Piano : An interactive Musical Java Activity - Paul Flavin
    Play a Piano / Synthesizer / Oscilloscope: Play the piano using your mouse or computer's keyboard. Watch the wave forms as well as hear them. This virtual reality Java piano lets you play the piano and have a little fun while learning the relation between ...more>>

  8. 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>>

  9. 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>>

  10. PlaytoLearn.com - Fenzi Designs
    These flash cards and other tools help students in grades K-5 learn the basics of math, tell time, count money, add, subtract, multiply and divide. ...more>>

  11. Plot a Graph - Vladimir Sorokin; University of Kentucky
    An applet that allows you to enter and plot functions of one variable. Enter an expression with a variable x to be plotted, the number of points to calculate, and the range of your variable in the corresponding textfields below the plotting area, and ...more>>

  12. Plot Graphs - Philipp Wagner
    Plot multiple two- or three-dimensional graphs, including of parameterized functions and derivatives, in one and the same graph. Key in equations with the WYSIWYG formula editor. ...more>>

  13. Plotting Linear Equations - SPICE: Standards-Based Products for Interactive Classroom Education
    An interactive workspace for graphing points, ordered pairs, lines, and planes. SPICE On-line modules are constructed with three separate but functionally linked areas, Instructions/Lessons, Display/Work Space, and Assessment. Detailed directions are ...more>>

  14. Plouffe's Inverter - Simon Plouffe
    A database of more than 84,800,000 mathematical constants like Pi, Sqrt(2), Catalan and Euler's gamma. Enter a number, search or browse, and the programs will find what the number is made of. From the author of the Encyclopedia of Integer Sequences (with ...more>>

  15. Podcast Directory: Math - Podseek
    Podcasts of various math instruction and tutorials. Log in to rate or review the links. ...more>>

  16. Poisson Pit: Poisson Probability Calculator - Chuck Anesi
    Variously called the Poisson Distribution, Poisson Law of Large Numbers, or Poisson Distribution for Rare Events, the probability function for this discrete distribution of one parameter is given on this site. The Poisson distribution is usually employed ...more>>

  17. Poles and Zeros of a Causal LTI System - Manfred Thole
    A Java applet that shows the domain of a system whose transfer function has two poles and two zeros. Poles and zeros can be dragged with the mouse. The amplitude response and the phase response are shown along the side. Plot: |H(s)| may take a while. ...more>>

  18. Poliplus Software
    Educational computer algebra, geometry, trigonometry, calculus software for Windows and Macintosh, and Java. Formulae 1 (F1) is a computer algebra system designed for the teaching and exploration of Mathematics. EqnViewer is a Java applet that allows ...more>>

  19. Polygons: formality and intuition - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A discussion of the definition of a polygon (is it desirable to allow overlapping vertices?), mathematical notation, an interactive exploration of Grünbaum's transformation and a generalization of Napoleon's Theorem, billiard tables, and the flexibility ...more>>

  20. Polyhedra - Rolf Asmund
    A gallery of regular polyhedra, snub uniform polyhedra, deltahedra (polyhedra consisting only of equilateral triangles), and polychora; with animations, still graphics, and some taxonomic data (vertices, edges, faces, polygons, radii, and more). Mobius ...more>>

  21. Polynomiography - Bahman Kalantari
    Polynomiography is the "art and science of visualization in approximation of zeros of polynomials. This visualization is via fractal and non-fractal images created based on the mathematical convergence properties of iteration functions." The galleries ...more>>

  22. 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>>

  23. Popnoggin - Popspring LLC
    Popnoggin is a software program that allows parents or teachers to "install" pop-up flash cards on any game or site a student uses. Set parameters for drilling math facts to "buy" time on the site or game. ...more>>

  24. Portion Distortion - National Institutes of Health (NIH)
    How do the portions served in today's fast food restaurants compare to those available 20 years ago? Take the "Portion Distortion" quizzes to learn exactly how much portions have "super sized," as well as the amount of physical activity required to burn ...more>>

  25. Power Math: Online Math Problem Solving
    Algebra, geometry, and arithmetic formulas for grades up to 9th. ...more>>

  26. Powers of 10 - Michael W. Davidson, The Florida State University
    This telescoping Java applet illustrates powers of ten. View the Milky Way at 10 million light years from the Earth, move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree -- then begin to move from the ...more>>

  27. Powers of Ten - Bruce Bryson
    A series of images based on the book Powers of Ten, by Philip and Phyllis Morrison and the Office of Charles and Ray Eames. Each picture's subject is ten times wider or narrower than the next. Images range from quarks at 10-16 meters to groups of galaxies ...more>>

  28. A Practical Guide to Wavelet Analysis - Christopher Torrence and Gilbert P. Compo
    Read an introduction to wavelet analysis and Monte Carlo methods, or download it in PDF or PostScript format. Use an interactive wavelet plotting form to investigate sample time series or your own data. Download wavelet software in Fortran, IDL, or ...more>>

  29. Practical Money Skills for Life - VISA
    For educators, parents and students to practice better money management for life. Available online or in a binder format, the free classroom curriculum consists of a teacher's guide, student worksheets and quizzes. Teacher's Guide lessons cover topics ...more>>

  30. The Practice of Statistics - Yates, Moore & Starnes; W. H. Freeman & Co.
    A free resource for students and instructors using the statistics textbook The Practice of Statistics. Take online quizzes for each chapter; read EESEE (Encyclopedia of Statistical Examples and Exercises) case studies ranging from "Is Old Faithful Faithful?" ...more>>

  31. Praktick - Praktick Learning private Ltd.
    Auto-scoring practice problems aligned to the UK's Central Board of Secondary Education (CBSE) Standards, from pre-kindergarten to grade seven. Questions adjust dynamically based on performance, while a timer counts up response time; incorrect answers ...more>>

  32. Pre-Calculus: A Teacher Quality Grant Project - State of Texas, Texas Higher Education Coordinating Board
    A precalculus "course-in-a-box" for all teachers, particularly those new to teaching precalculus under the guidelines of the Texas Essential Knowledge & Skills (TEKS). It includes content information, activity sheets, videos of best teaching practices, ...more>>

  33. The Precalculus Weblet - Dynamic Educational Materials
    A partially online precalculus course with the following centers: Instruction (extending the instructional opportunities beyond the textbook; see Explore the Concepts and Starred Exercises), Reference (technology, glossary, history, sites that complement ...more>>

  34. Precision Mathematics, "Home of the Merbs" - Joseph Balcuk, Precision Mathematics
    Site for "The Spoils of Civilization", a game students can play through the entire school year. Students are required to compete in class and work together to build a civilization for the main characters, Merbs. Students can also use the online game forum ...more>>

  35. PrimaryMath - David Dee
    Paperless arithmetic learning for school and home. Create lessons composed of interactive problems in addition, subtraction, multiplication and division (including long division) with optional decimals and signed numbers. ...more>>

  36. Prime Factorization Machine - James Brennan
    A page that runs a script that will return the prime factorization of a positive integer (limited to numbers less than 1,000,000). Even with this limit, numbers with very large prime factors may take a few minutes to factor if your computer has a slow ...more>>

  37. Prime Number Generator - Mark Chamness
    This Java applet quickly generates a long list of prime numbers. When you pause or stop the list, you can scroll through the numbers. ...more>>

  38. Prime Number Listening Guide - Chris Caldwell; Dept. of Mathematics & Computer Science, Univ. of Tennessee at Martin
    A guide to an online program that you can use to create your own "primal sounds" if you can play midi files. Caldwell introduces a few ways to hear the primes and use them to hear both the simple patterns (there are some) and the perplexing irregularities ...more>>

  39. Prime Number List - James Brennan
    A page with a script that generates a list of prime numbers. Once started, it will run until you click 'Stop' or your computer runs out of memory. A second page writes the list to a new Web page suitable for printing. ...more>>

  40. The Prime Number Maze - William Paulsen; Arkansas State University, Jonesboro, AK
    Navigate mazes of binary numbers determined by the distribution of the prime numbers. Try mazes at Beginner (binary notations and prime numbers), Intermediate (500 rooms), Advanced (5000 rooms), Super Advanced (6 times larger than the advanced), or Ultimate ...more>>

  41. Prime Numbers
    Browse primes smaller than 10 billion, or see a list within a given range, or have such a list emailed to you. ...more>>

  42. Prime-Numbers.net - John Barth
    Answers to commonly asked questions about primality: What are prime numbers? What are composite numbers? How do I find prime numbers? What are some types of prime numbers? What is the biggest prime number? Other resources include original worksheets available ...more>>

  43. Primordial Soup Kitchen - David Griffeath, Dept. of Mathematics, Univ. of Wisconsin
    Research on the self-organization of random cellular automata. Griffeath produces colorful computer graphics that illustrate the ability of local parallel update rules to generate spatial structure from disordered initial states. His Welcome offers access ...more>>

  44. Principia Mathematica II - Michael Meyling
    An open source project attempting to present mathematical knowledge in a formal, correct form. It includes a proof verifier which checks a mathematical proof written in a certain formal language and an HTML converter for making mathematical HTML pages. ...more>>

  45. Principles of Calculus Modeling, an Interactive Approach - Donald Kreider and Dwight Lahr, Department of Mathematics, Dartmouth College
    Web pages that correspond to each section of the book Principles of Calculus Modeling: Modeling Discrete Data; Modeling Rates of Change; Modeling with Differential Equations; Modeling Accumulations; and Culminating Experience. With quizzes, applets, worked ...more>>

  46. Printable Math Worksheets - TestDesigner.com
    Free printable math worksheets, with answer keys, on number concepts, measurement, geometry, algebra, and statistics. Customize your own tests by selecting from the growing database of questions -- or create your own. ...more>>

  47. The Prisoner Problem - Anne Arundel Community College
    A classic logic problem about three prisoners, each of whom tries to determine what color his own hat is in order to be set free. ...more>>

  48. Prisoners' Dilemma - Wayne Davis
    An interactive game simulation inspired by Prisoners' Dilemma game theory as described in the book The Selfish Gene by Richard Dawkins. The payoff is a reduction in prison sentencing of very good, fairly good, fairly bad or very bad, which is translated ...more>>

  49. Probability and Quantile Applets - Balasubramanian Narasimhan
    The Probability Applet calculates areas under the standard normal density curves. You are presented with two fields and three buttons on top of a normal density curve. The buttons allow you to calculate areas to the left or to the right or between. The ...more>>

  50. Probability by Surprise - Susan P. Holmes et al.
    Experimenting Paradoxes - browser-sensitive Java applets (try Internet Explorer first) to try out: The Birthday Problem; Say Red; The Collector; Banach's Matchbox Problem; The Matching Problem; The IID Sequence; Polya's Urn as a restaurant choice; Random ...more>>

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