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  All Sites - 6793 items found, showing 1951 to 2000

  1. Fractions, Cycles, and Time - Ivars Peterson (MathTrek)
    In ancient times, people had to confront awkward numbers in astronomical contexts when they compared the motions of the sun and moon. The unfailing, daily passages of the sun across the sky and the corresponding movements of the stars at night represented ...more>>

  2. Fractions: Parts is Parts - Energy Conservation Enhancement Project
    Incandescent & fluorescent lighting. Math objectives: 1. Describe the two parts that make up a fraction. 2. Explain mixed numbers and improper fractions. 3. Find the least common denominator. 4. Reduce fractions to lowest terms. Energy objectives: ...more>>

  3. The Fractory: An Interactive Tool for Creating and Exploring Fractals - Green, Kulesza, Bergstresser; ThinkQuest 1996
    Learn about fractals - what they are and how to design them - and discover more on your own. Fractals show an order in seemingly random things, and give us tools with which we can predict the weather, render natural looking objects, and help understand ...more>>

  4. FracZoom Explorer, FracZoom Navigator - SoftOrange Interactive
    FracZoom Explorer is a fractal program that lets you explore a 3D world to find a lost damsel, then examine fractals for yourself. FracZoom Navigator allows you to create films of your fractal zooms at very fast rates, plus up to 24bit fractal images. ...more>>

  5. Fragments of the Past - Ivars Peterson (MathLand)
    Historians of mathematics now generally agree that scholars in China, India, and the Islamic world produced remarkably sophisticated mathematics between the fifth and the fifteenth centuries. However, most would probably still argue that Europeans in ...more>>

  6. Francophone Mathematics Resources - Gatwood/Peckham
    An alphabetical list of links to math resources in French, including math departments, journals, centers and labs, libraries, etc. in both France and Canada. This list was created by David A. Gatwood from a list by Bob Peckham (TennesseeBob). ...more>>

  7. Franklin Institute Science Museum - Philadelphia, Pennsylvania
    The online entry point for the Philadelphia science museum, featuring in-depth multimedia virtual exhibits and explorations, resources for teachers, and guides to the real-life museum and its programs. The website features a large selection of educational ...more>>

  8. Frank's World: Math on Cable - Ivars Peterson (MathLand)
    "Hi, you're live on Math Chat!" The question from the caller sounds pretty tough: "Three salesmen visit a shop. One comes every four days, another every five days, and the third every 10 days. If all of them were at the shop today, how long would you ...more>>

  9. Fraperdec* (SMILE) - Connie Taylor, Holy Angels School
    A lesson that uses playing cards to enrich and develop skills in conversion and sequencing of fractions, decimals and percentages, both in each individual set and in cross sets. From the Recreational and Creative Math section of a collection of almost ...more>>

  10. Frattali - Isawi
    Disegni a mano libera elaborati con Autocad e Photoshop per creare immagini di tipo frattali. ...more>>

  11. Freakonometrics - Arthur Charpentier
    Blog by a Montreal professor of actuarial science "addicted to R." Posts, which date back to March, 2007, have included "Dynamic dependence ordering for Archimedean copulas and distorted copulas," "Pricing catastrophe options in incomplete markets," "Estimation ...more>>

  12. Freaky B's Disc Golf - ridiculopathy.com
    Fling a virtual frisbee through an eighteen-bucket disc golf course subject to wind and collision effects. Requires the Flash plug-in. ...more>>

  13. Freaky Links - Cut the Knot!, Alexander Bogomolny with William A. McWorter Jr.
    Mathematics impinges on itself and the sciences in unexpected and bizarre ways. This page is a small illustration of this phenomenon, taking up recreational mathematics and the game of Chinese checkers, the strategy game called Hex, quasigroups, and block ...more>>

  14. Free Daily Sudoku Puzzles
    For this canonical puzzle the aim is to fill every square in the 9x9 grid with a number 1-9. Every row, every column, and every 3x3 box must contain the digits 1 through 9. Free Daily Sudoku has online puzzles and daily puzzles by email or RSS feed. Also ...more>>

  15. Free Doughnuts - Web Feats Workshop II
    You have a piece of cardboard 24 by 15 inches. Your problem is to figure out how much to cut out of each corner to make the box with the biggest (maximum) volume. Use the applet to explore how changing the size of the cutout changes the box. This workshop ...more>>

  16. The Free Fall Research Page - Green Harbor Publications
    Accounts of people who "have survived a fall of thousands of feet without a working parachute." In particular, learn facts about "falling math" -- how to calculate terminal velocity -- and download the Free Fall Research Page Speed Conversion Table, which ...more>>

  17. Free Math Education Online Tutorials - Kirti Sharma
    Free math primers, lessons, and practice problems -- with mouse-over and clickable solutions -- on adding and subtracting algebraic expressions, properties of operations, the absolute value function, the number system, solving quadratic equations, intercept ...more>>

  18. Free Math Help - Florent Gouachon; fmaths.com
    Free math lessons and problems from 1st Grade to 11th Grade. Free sign-up required in order to save your work. ...more>>

  19. Free Math Help - Ted Wilcox
    Free tutorials, glossary, study tips, calculator advice, and more, including annotated links to other resources. ...more>>

  20. freemathtexts.org - Alain Schremmer
    Original texts that emphasize a very few but very powerful ideas; appeal to common sense and make no assumption of any kind about the students; and focus on helping readers convince themselves about mathematics. Written for use in developmental mathematics ...more>>

  21. Free Math Tutoring - Doug Simms
    Online instructional videos, many accompanied by example and exercise sheets. Use of the site is free. ...more>>

  22. Free Math Worksheets, Word Problems, Math Quiz, Math Puzzles and Free Math Games - MathOcean.com
    This blog is dedicated to provide free worksheets, word problems, simple problems, story problems, math quizzes, math puzzles, math games and much more. ...more>>

  23. Free Online College Courses: Mathematics - OnlineSchools
    Open math courseware from Johns Hopkins University; Massachusetts Institute of Technology (MIT); The Open University; the University of California, Irvine; University of Notre Dame; and other institutions. Refine course listings by math subjects: algebra, ...more>>

  24. Free Online Unit Converter
    Convert quantities of mass, area, angle, length, volume, pressure, temperature, and data storage by selecting the unit of measures from pull-down menus. This utility from PDFConverter.com also adjusts the current time according to time zones. ...more>>

  25. Free Puzzles - Jimmie Dean
    A collection of puzzles and brainteasers, divided into geometry, logic, math, weight, moves, and miscellaneous. Each puzzle includes a hint, and solutions are available through e-mail. Online games and puzzles include a chess knight game and Hangman. ...more>>

  26. Free Ruler - Pascal
    Free Ruler is a free screen ruler for Mac OS X with the following features: a horizontal and vertical ruler which can be used independently or simultaneously; measurement in pixels, inches, picas, or centimeters; automatic alignment of rulers; the ability ...more>>

  27. Free Test Online
    Math and science practice exercises and quizzes for SAT, ACT, Advanced Placement Calculus, GMAT, GRE and CLEP tests. ...more>>

  28. Free Tiiu Pix - Tiiu Roiser
    A collection of thousands of free, high-resolution images for enhancing lesson plans, as well as research by teachers and students alike. Roiser, a retired teacher, organizes her photos and graphics into categories such as architecture, food, holidays, ...more>>

  29. Frequently Asked Questions About Trigonometry - J. David Eisenberg
    An interactive site that explains the ideas behind trigonometry. With Java applets for experimenting with triangles and audio files for hearing the pronunciation of trigonometric terms. ...more>>

  30. Frequently Asked Questions in Business Statistics - Jian Chen
    Why should I study business statistics? Why is an average calculated? Why is a standard deviation calculated? Why are histograms calculated? Why are we concerned with samples and sampling in data analysis? Why calculate a correlation coefficient? Why ...more>>

  31. Frequently Asked Questions in Management Science or Operations Research - Jian Chen
    Why should I study Management Science or Operations Research? Why should a business decision maker study Decision Theory? What is Bayesian Decision Theory? Why study Linear Programming? Why study Queuing Theory? What is computer simulation? What is Inventory ...more>>

  32. Frequently Asked Questions in Mathematics - Alex López-Ortiz and the Sci.Math FAQ Team
    The sci.math FAQ. Non-trivial mathematical trivia from the newsgroup sci.math: a compilation of math history and knowledge of interest to most professional and amateur mathematicians, ranging from advanced topics such as Wiles' proposed proof to Fermat's ...more>>

  33. The Freudenthal Institute (FI) - Utrecht University, The Netherlands
    The National Expertise Center for Mathematics Education in primary and secondary education in the Netherlands. Browse or search research projects including vocational/adult education, math in the city, cultural minorities and math education, innovation ...more>>

  34. Friedman Numbers - Erich Friedman
    A Friedman number is a number that can be written in some non-trivial way using its digits, the operations + - * / ^ and concatenation of digits. For example, 25 and 126 are Friedman numbers, since 25 = 5^2, and 126 = 6 * 21. Page includes a list of all ...more>>

  35. Frieze Patterns - David A. Reid
    A frieze is a pattern which repeats in one direction. Friezes are often seen as ornaments in architecture. A mathematical analysis reveals that there are seven different frieze patterns possible. These resources were designed for a standards-based project ...more>>

  36. Frieze Patterns in Cast Iron - University of Cambridge
    The 'Sydney Lace' of Australia and the rest of the world, from Paris and New Orleans to Brisbane and Melbourne: examples of all seven frieze pattern types in cast iron decorative work. ...more>>

  37. From Chaos: Beauty - Kitara
    Fractal galleries created using UltraFractal. ...more>>

  38. From Constructivism to Active Learning - Siegfried M. Holzer
    Summary of an essay defining constructivism and outlining its implications for education: active learning, authentic activities, students' views, authentic assessment, and innovative curriculum. Published in the hypermedia publication of SUCCEED: The ...more>>

  39. From Counting to Writing - Ivars Peterson (MathLand)
    Abstract numbers are the product of a long cultural evolution. They also apparently played a crucial role in the development of writing in the Middle East. Indeed, numbers came before letters, contends archaeologist Denise Schmandt-Besserat of the University ...more>>

  40. From Galaxies to Electrons (Math Chat) - Frank Morgan, MAA Online
    What are the largest and smallest objects anyone has ever seen with the naked eye? heard? felt? (For the first part, the whole object must be seen, though not necessarily in full detail or from every side.) ...more>>

  41. From Lewis Carroll to Archimedes - Cut the Knot!, Alexander Bogomolny
    On March 29, 1879, Vanity Fair began offering its subscribers a new weekly puzzle invented by Lewis Carroll... on March 17, 1953 Frank Gray, a research scientist at Bell Labs, filed patent no. 2632058, for the Gray code encoding the vacuum tube. An n-digit ...more>>

  42. From Now On
    A Monthly Electronic Commentary on Educational Technology Issues. Previous issues archived by theme and date; since 1991. ...more>>

  43. From Number to Formula - Ivars Peterson (MathLand)
    Given the number 1.6180339887, how can you find out whether this particular number is special in some way, as the output of a specific formula or the value of a familiar mathematical function? Do you have a favorite number: Pi, the golden ratio, e (Napier's ...more>>

  44. From Polychords to Polya: Adventures in Musical Combinatorics - Mike Keith
    A book that explores the various connections between the basic musical building blocks - chords, scales, and rhythms - and the area of mathematics known as combinatorics, which is concerned with counting and classifying configurations of objects. Questions ...more>>

  45. From Starting Line to Ancient Angle - Ivars Peterson (MathTrek)
    The ruins of ancient Corinth include a stadium that featured several courses for foot races. In 1980, archaeologists found and excavated the curved starting line for one such racecourse, dating from about 500 B.C. Curved to allow a staggered start, the ...more>>

  46. FroZenLight - Zoltan Palmer
    Interrelating line arts, mathematics, and cryptography, this free Java application simulates experiments in classic optics. Use FroZenLight to see how beaming a light ray onto circular mirrors would produce reflection patterns ranging from the symmetric ...more>>

  47. f(t) - Kate Nowak
    A blog by a self-described "full-time math teacher, curriculum inventor and refiner, adolescent listener, correspondence-to-parents writer, practice problem feedback giver, and example-setter" who has taught high school math since 2005. Posts, which date ...more>>

  48. FTL
    An online magazine with articles about space, science, and science fiction. Features include a series of humorous articles by Ian Stewart, with topics ranging from lattice polyhedra (and conceptual art) to Diophantine equations (and camels). ...more>>

  49. Fully Interactive Prime Number Simulation
    A primality simulation created from three simple rules: each number N creates a circle with a radius of N; the circumference of each circle is divided by N, creating an arc of length of circumference/N; and each arc makes a complete rotation in N iterations. ...more>>

  50. Fun and Games in Nevada - Ivars Peterson (Mathland)
    ...in the hotel's casino, the sights and sounds were... the glare of neon lights, the jangle of coins erupting from slot machines, the clink of chips at blackjack tables, and the mutter of avid gamblers testing their luck. It was the middle of April, ...more>>

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