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  All Sites - 4576 items found, showing 1151 to 1200

  1. Farmer and Wife to Catch Rooster and Hen: Sam Loyd's Puzzle - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    An entertaining Java implementation of a puzzle by Sam Loyd. A farmer and his wife try to catch a hen and a rooster. A good exercise in taxicab geometry. ...more>>

  2. Fascinating Flat Facts about Phi - Ron Knott
    Phi and two-dimensional geometry - constructing the golden section: phi, Phi; Phi and the root-5 rectangle; the shape of a piece of paper; Phi and the pentagon triangles; Penrose tilings; a rectangle/triangle dissection problem; the Golden Spiral; trigonometry ...more>>

  3. Fascinating Folds: Origami
    A premier supplier for Origami and the Paper Arts with books, papers, and related products. Online ordering of supplies is available. Origami and Paper Products for sale include books, papers, videos, CDs, related products (cards, bookmarks, t-shirts), ...more>>

  4. Fast Arithmetic Tips - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    Specific tips for three broad categories of rapid math: offensive (for the purpose of getting a result fast), defensive (for the purpose of discounting a result fast), or entertaining (for stunning your friends with math magic!). The entertaining category ...more>>

  5. Faster-Than-Light Math!
    Free animated 3D math videos in algebra, geometry, trigonometry, word problems on related rates, and more. Faster-Than-Light (FTL) Math tailors courses or tutoring sequences based on student needs and math skill levels. It guarantees improvements on SAT ...more>>

  6. Fast Facts (Math On Line) - D. Kell; Mercer County Community College
    Link listings for math concepts, from whole numbers and fractions to advanced equations, logic, and probability. ...more>>

  7. Fast Food Combinations - Math Forum, Ask Dr. Math FAQ
    How many possible combinations can be made from a special menu of eight items? ...more>>

  8. Fathom and Tinkerplots - Math Forum
    A discussion group to foster communication within the Fathom and Tinkerplots user community. Topics appropriate for discussion include how to use Fathom and Tinkerplots effectively in teaching mathematics, statistics, and data analysis; problems (both ...more>>

  9. A Faulty Dissection - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A deceptive dissection implemented in Java. Two different rearrangements of the same four plane pieces result in rectangles of different area. A very entertaining introduction into the subject of Fibonacci numbers. ...more>>

  10. Federal Resources for Educational Excellence (FREE)
    A site for finding federally-supported educational resources. There are subject listings (including Mathematics) and a search engine, favorite sites (reviewed by users), more sites for students, comments and feedback forms, and the opportunity to be a ...more>>

  11. The Feeling of Power - Isaac Asimov
    Science fiction that explores a time when only computers know how to multiply. "...seven times three is twenty-one." "And how do you know that?" asked the congressman. "I just remember it. It's always twenty-one on the computer. I've checked it any number ...more>>

  12. Fermat's room - Javier Martín
    Solve puzzles playing this Java math adventure game, also available in Spanish. Based on a film by the same name. ...more>>

  13. FermiEffect.com - Alice Caton
    Links to biographies of Enrico Fermi and his granddaughters, computers and chaos theory, Fermi questions, and the Fermi paradox. ...more>>

  14. Fermi Questions - Sheila Talamo
    Fermi questions emphasize estimation, numerical reasoning, communicating in mathematics, and questioning skills. Students often believe that "word problems" have one exact answer and that the answer is derived in a unique manner. Fermi questions encourage ...more>>

  15. A Few Aspects of Cryptology - David Hamer
    Read about cipher machines such as Enigma, Geheimschreiber, NEMA, SIGABA and others; visit the gallery showrooms of the Crypto Simulation Group (CSG), a group of historians and researchers in the field of cryptology; download sample simulators and published ...more>>

  16. Fibonacci - James Grant
    Pages about Fibonacci the mathematician, the sequence that bears his name and its relationship to the Golden Ratio, as well as how the Fibonacci numbers occur in nature. ...more>>

  17. Fibonacci Numbers and Nature - Ron Knott
    Fibonacci and his original problem about rabbits that gave the series its name; the family trees of bees; the golden ratio and the Fibonacci series; the Fibonacci Spiral and sea shell shapes; branching plants; flower petal and seed-heads; and the leaf ...more>>

  18. Fibonacci Numbers and the Golden Section - Ron Knott
    Information about the Fibonacci series, including a brief biography of Fibonacci, the numerical properties of the series, and the ways it is manifested in nature. Fibonacci numbers are closely related to the golden ratio (also known as the golden mean, ...more>>

  19. Fibonacci Numbers and the Pascal Triangle - Radoslav Jovanovic
    Brief articles about Pascal's triangle, Fibonacci numbers, Lucas numbers, and the golden section, including the relations between Fibonacci numbers and Pascal's triangle, and Fibonacci numbers and the golden section. In English, German, or Serbian. ...more>>

  20. The Fibonacci Numbers, Pineapples, Sunflowers, and the Golden Mean - Don Cohen (The Mathman)
    Mathematics from a Pineapple: Infinite sequences, limit of a sequence, ratios, fractions, and decimals. Also Looking at a Regular Pentagon. Sample problems with some answers from Chapter 7 of Don Cohen's worksheet book. ...more>>

  21. Fibonacci Rabbit Sequence - Ron Knott
    One way to look at Fibonacci's Rabbits problem gives an infinitely long sequence of 1s and 0s, the Fibonacci Rabbit sequence: 1 0 1 1 0 1 0 1 1 0 1 1 0 ..., also called the Golden string or Golden sequence since it is a close relative of the number Phi, ...more>>

  22. The Fibonacci Series - Matt Anderson, Jeffrey Frazier, and Kris Popendorf; ThinkQuest 1999
    The Fibonacci Series is deceptively simple, but its ramifications and applications are many. Learn more about the Fibonacci Series itself: an introduction, the rabbit problem, Binet's formula, the successor formula (given only one term in the Fibonacci ...more>>

  23. Fido Dido Puzzle - Digital Creative Communications
    "Want to let me read your mind?" A Flash game in which Fido Dido asks you for clues as he figures out the random number you have chosen. ...more>>

  24. Figure Five Frenzy - ridiculopathy.com
    Create an arithmetic expression equal to the target number using the four basic operations, grouping parentheses, and the five number cards dealt to you. Play in arcade (against a timer), multi-player, or solitaire modes. Requires the Flash plug-in. ...more>>

  25. Figures and polygons - Mark Motyka, Math League Multimedia
    Definitions and illustrations: Polygon; Regular polygon; Vertex; Triangle; Equilateral triangle; Isosceles triangle; Scalene triangle; Acute triangle; Obtuse triangle; Right triangle; Quadrilateral; Rectangle; Square; Parallelogram; Rhombus; Trapezoid; ...more>>

  26. Figure This! Math Challenges for Families - National Council of Teachers of Mathematics (NCTM)
    Elementary-level problems with hints, information about when and why answers matter in the real world, suggestions for getting started, and answers with explanations. A Challenge Index lists problems by topic. Examples include: Line Up! (How long do you ...more>>

  27. Fill-It-In Outline Mathematics - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    A collection of outline solutions to various problems: word and logic problems, problems from arithmetic, number theory and geometry. Solutions are practically complete with a few essential pieces omitted and to be filled in by the student. ...more>>

  28. Financial Education - EverFi
    Makers of interactive financial literacy learning and gaming platforms such as Vault, Everfi, and Buttonwood. ...more>>

  29. Financial Literacy Math Quizzes - HowToSaveMoney.me
    Quizzes for practicing addition and subtraction of dollar and coin amounts, presented with pictures of US currency or as numerical expressions. "Grade My Quiz" or generate new problems with the click of a button. The site also offers finance calculators, ...more>>

  30. Financial Noise - Ivars Peterson (MathTrek)
    The conventional view of stock markets and their behavior is that the price of a stock reflects all the information available on that stock. In this model, any variations in price would correspond to the arrival of new information. Some of that information ...more>>

  31. Finding a Percentage - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about finding a percentage, such as "What percentage of 76 is 27?" and "What number increased by 30% = 260?" and "What number is 25 percent of 24? 24 is what percentage of 25? 24 is 25 percent of what number?" ...more>>

  32. Finding Area and Perimeter in a Miniature House Using Standardized Units (SMILE) - June Muhammad, Park Manor
    A lesson designed to teach students to find area and perimeter in a miniature house using standardized units of measure; to understand that the length of an object remains the same regardless of changes that occur in its position; and to experience hands-on ...more>>

  33. Finding Common Ground in K-12 Mathematics Education - Mathematical Association of America
    "Starting point" documents, designed to advance the discourse about how to improve K-12 mathematics teaching and learning, that emerged from MAA-convened pilot meetings between mathematicians and mathematics educators thought to be strongly aligned with ...more>>

  34. Finding Prime Factors - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about finding prime factors, along with divisibility rules for some prime numbers. ...more>>

  35. Finding the Center of a Circular Starting Line in an Ancient Greek Stadium - Rorres, Romano; SIAM Review
    A 1997 essay by Chris Rorres and David Gilman Romano, which presents and compares two methods for finding the center and radius of a circular starting line of a racetrack in an ancient Greek stadium. Graphs and tables are included. Introduction, Three-Points ...more>>

  36. Finding Ways to Nguyen Students Over - Fawn Nguyen
    Nguyen blogs mostly about her teaching middle school math. Posts, which date back to November, 2011, have included "Teaching 101 -- How I Got Like This," "Puzzles and Brainteasers, Set 11," "Pi Day Activities," "Always Sometimes Never," "Using Excel for ...more>>

  37. Find the Prime Factors of a Number - Washington University Mathematics Dept., St. Louis, MO
    A prime number is any number with no divisors other than itself and 1, such as 2 and 11. Any number can be written as a product of prime numbers in a unique way (except for the order). Enter a number (with a maximum of 9 digits), and the form will return ...more>>

  38. FI Projects and Activities (Freudenthal Institute) - Utrecht University, the Netherlands
    The FI is the National Expertise Center for Mathematics Education in primary and secondary education. This page provides a list of FI projects and activities, with links to more information. Sample subjects: Spherical geometry; Technology, mathematics, ...more>>

  39. The First 10,000 Primes - Chris Caldwell; Dept. of Mathematics & Computer Science, Univ. of Tennessee at Martin
    The first 10,000 prime numbers, in a table. ...more>>

  40. First Day of School - Math Forum, Teacher2Teacher FAQ
    Answers to a frequently asked question: What do you do on the first day of school? ...more>>

  41. First Digits - Ivars Peterson (MathTrek)
    Take a look at a newspaper page listing stock market prices. You might think that each of the numbers from 1 to 9 would occur equally often among the first digits of all the listed prices. Instead, however, you're very likely to find that numbers starting ...more>>

  42. FirstGov for Kids - Federal Citizen Information Center, U.S. General Services Administration
    Links to Federal kids' sites, along with some of the best kids' sites from other organizations, all grouped by subjects such as money, space, geography, and fun stuff. The page of science and math links to government sites about rockets, weather, the ...more>>

  43. FIRST STEP Online - Charles Onstad, Director
    The Federal laboratories' Involvement in Research in Science and Technology for Science Teacher Enhancement (FIRST STEP) combined the expertise of research scientists and science teachers to bring actual research into middle school classrooms. Lessons ...more>>

  44. First Year Suggestions - Math Forum, Teacher2Teacher FAQ
    Answers to a frequently asked question: Can you give me some helpful suggestions for getting through my first year of teaching? ...more>>

  45. Fit Brains Brain Games - Vivity Labs, Inc.
    Fit Brains offers games to improve your brain health. Free registration required. ...more>>

  46. The Five Percent Solution - Keith Devlin (Devlin's Angle)
    "Mathematical disciplines such as statistics, optimization theory, probability theory, queuing theory, control theory, game theory, and operations research are all used routinely in making difficult choices in public policy, health, business, manufacturing, ...more>>

  47. FiveThirtyEight - Nate Silver, Editor in Chief
    Quantitative features, interactives, and "datalabs" on politics, economics, sports, and other topics by Silver, Carl Bialik, and others. Science posts have included "How Statisticians Could Help Find That Missing Plane," "Toilet Seat Covers: To Use or ...more>>

  48. Five Triangles mathematics blog
    This blog, which dates back to April, 2012, posts problems for middle and junior high school students. Topics have ranged from ratios and fractions to area and paths to quadratic equations and linear equations. ...more>>

  49. Flags - Jim Croft
    Links to information about and images of flags of the world: National Flags, International Maritime Signal Flags, Motor Racing Flags, the Semaphore Flag Signaling System, and others, good for exploring symmetry in flag design. ...more>>

  50. Flashcards (A+ Math)
    Java and non-Java homework-helper flashcards for practicing: Java (with answers and with or without sound): addition, subtraction, multiplication, division, square roots, and rounding; non-Java: addition, subtraction, multiplication, division, order of ...more>>


 
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