 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
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 Field Guide to Functions (Web Study Guide)  Oregon State University (OSU) Math Department
This field guide contains a quick look at the functions commonly encountered in single variable calculus, with exercises for each topic: linear, polynomial, power, rational, exponential, logarithmic, trigonometric, and piecewise functions. Also algebraic
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 A Field Guide to the Orbifolds (Geometry and the Imagination)  Conway, Doyle, Gilman, Thurston; The Geometry Center
Tongueincheek hints for learning how to classify the 17 types of symmetry patterns in the Euclidean plane. "...information presented in this section has been gleaned from a cryptic manuscript discovered among the personal papers of John Conway after
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 FifthGrade Empathy ... For Plants  William E. Ray; Kodak
Children were introduced to this project by taking them outside Pinoak Elementary School, Oil City, PA, in March and having each pair of them select a living
plant specimen. Buds were noticed as being a part of each plant and were the plant parts which
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 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), multiplayer, or solitaire modes. Requires the Flash plugin.
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 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;
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 FillItIn 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.
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 Filmer V2.0  A program for creating fractal animation  Julian Haight
Filmer is a frontend program for Fractint (for DOS/Windows) that generates fractal animations. Fractint is a program for calculating still fractal images (you need Fractint installed to use Filmer). Filmer uses Fractint parameter (.par) files to specify
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 Financial Calculators  Fair Isaac Corporation
Calculators to help you make decisions about borrowing money, debt pay off and savings; organized into mortgages, autos, loans, debit and credit cards, savings, personal finances, investments, and retirement planning. For example, use the loan savings
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 Financial Education  EverFi
Makers of interactive financial literacy learning and gaming platforms such as Vault, Everfi, and Buttonwood.
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 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,
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 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
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 Financing Retirement Payments in the Future in Austria: Some Scenarios  Erich Neuwirth
An interactive spreadsheet to download for studying the effects of changing the retirement age. (Microsoft Excel 5.0 or higher must be installed on your computer.) The key number for judging the financiability of a retirement payment system is the ratio
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 Finanzierungsrechner
Online calculation tools to perform financial calculations such as IRR, NPV, and annual interest rates.
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 Finding Common Ground in K12 Mathematics Education  Mathematical Association of America
"Starting point" documents, designed to advance the discourse about how to improve K12 mathematics teaching and learning, that emerged from MAAconvened pilot meetings between mathematicians and mathematics educators thought to be strongly aligned with
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 Finding the Center of a Circle  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about finding the center of a circle using a ruler and compass, or given its radius and two points on its circumference, or given three points on its circumference, or given its equation.
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 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, ThreePoints
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 Finding the Smallest Triangle  Jim Parks
A script for finding the triangle of minimum perimeter inscribed in a given triangle.
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 Finding the Sum of the Exterior and Interior Angles of a Polygon (SMILE)  David Drymiller, Morgan Park High School
A geometry lesson designed to teach students to find the sum of the interior angles and the sum of the exterior angles of any polygon; review linear measurement to the nearest sixteenth of an inch and angle measurement to the nearest degree; and construct
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 Finding the Value of Pi  Isaac Reed
Throughout the history of civilization various mathematicians have been concerned with discovering the value of and different expressions for the ratio of the circumference of a circle to its diameter.
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 Find OpenCourseWare with OCW Search  Pierre Far
An independent search engine that indexes all the course materials published freely online by universities that participate in the OpenCourseWare (OCW) initiative, including the Massachusetts Institute of Technology (MIT) and Stanford University. Search
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 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
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 Finite Mathematics & Applied Calculus Resource Page  Waner, Costenoble; Hofstra University
Online interactive tutorials  Algebra Review, Finite Mathematics, and Calculus  based on Finite Mathematics Applied to the Real World, Calculus Applied to the Real World, and Finite Mathematics and Calculus Applied to the Real World. Topic Summaries;
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 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,
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 FirefighterMath  Dan Jimenez, United States Department of Agriculture (USDA) Forest Service
This selfpaced math course refreshes firefighters' knowledge of basic math concepts and tools necessary for making math calculations in the field. Topics include calculating tank volumes and flow rates, determining pump pressure and friction loss, understanding
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 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.
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 First Day of School  Math Forum, Teacher2Teacher FAQ
Answers to a frequently asked question: What do you do on the first day of school?
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 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
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 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
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 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?
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 Fisher's Exact Test  Øyvind Langsrud
A calculator for testing statistically whether there is any relation between two categorical variables (with two levels). With examples.
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 Fisica Legal (Cool Physics)  Professor Ricardo
Download several educational programs for teaching and learning Physics, Math, Chemistry and Astronomy. Presently this page is in Portuguese although most of programs are in English. All of the software is freeware. Also features tutoring, chats, discussion
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 Five Math Poems  Eileen Tupaz
Five short poems about mathematics.
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 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,
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 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
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 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.
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 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.
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 Flash Demos for Understanding Statistics  G. Donald Allen, Texas A&M University
Dynamic demonstrations to help foster an understanding of the graphing and variance for data sets. Create a histogram and show the variance; show the mean, variance, and correlation of selfselected data points; understand variance by creating data sets;
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 Flash Games  ATK Solutions, Inc.
Flash applets and games include rotating 3d cube; mind boggle square, which challenges you to slide a square across a surface by sliding other quadrilaterals into the unoccupied spaces; Futoshiki, which involves positioning counting numbers on a grid
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 Flatland: A romance of many dimensions  Edwin A. Abbott
A geometrical story about a twodimensional square who visits one and threedimensional worlds. Full text of the 2nd and revised edition, illustrated, 1884.
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 Flatland: the Movie  Flat World Productions, LLC
This movie, available in DVD format, is based on Edwin A. Abbott's classic novel, Flatland: A Romance of Many Dimensions. Flatland is a world that exists entirely on a twodimensional plane. All different kinds of shapes live, work, and play in this world.
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 Flexagon  Magnus Enarsson
"A flexagon is a polygon folded from paper with a very remarkable quality: you can turn it inside out to make it reveal hidden surfaces." History, including the original discovery of the trihexaflexagon by Arthur H. Stone, as he folded strips of paper
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 Flexagon Re'flex'ions
Several possibly new trihexaflexagon phenomena are presented, with a wide spectrum of findings including explorations with magic squares, palindromes, and much more.
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 Flexagons  Conrad, Hartline
Introduction: The story of the Flexagon; Building and Operating the Flexagon; The Covering Space Representation of Flexagon Operation.
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 Flight of the Bumblebee  Ivars Peterson (MathLand)
How did proving that a bumblebee can't fly originate? Who started the story? It apparently first surfaced in Germany in the 1930s, and the story was about a prominent Swiss aerodynamicist. One evening, the researcher happened to be talking to a biologist
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 Flip Flop Fly Ball  Craig Robinson
"A love of baseball plus a love of visual representations equals Flip Flop Fly Ball." Robinson's infographics include Diamonds in Manhattan, a map of every baseball or softball diamond on the island of Manhattan; Baserunning, which puts into perspective
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 flippedmath.com  Bean, Spencer; Kelly, Timothy; Brust, Michael; and Sullivan, Corey
These free Algebra, Algebra 2, and Geometry online courses for "flipped" classrooms offer video lessons, practice, application, and mastery check. Teachers for Department of Defense Education Activity (DoDEA) schools, "Algebros" Bean, Kelly, Brust, and
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 Flooble :: Perplexus  Lev Epshteyn
A searchable, categorized collection of all sorts of puzzles, from simple logic questions and word tricks to indepth math problems in probability and geometry. Users can talk to one another and collaborate on solutions, as well as post their own problems
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 Florida EXPLORES!
Brings the NOAA Direct Readout Satellite Ground Station Program into Florida's K12 Classrooms. Precipitation summary, Atlantic hurricane season, satellite imagery, weather observations and model products, Data Center, teacher resource guide, GOES8 status
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 Florida Museum of Natural History (FLMNH)  Gainesville, FL, USA
The largest natural history museum in the southern United States, holding more than 16,000,000 specimens of mammals, birds, reptiles, amphibians, fishes, mollusks, butterflies, vertebrate and invertebrate fossils, recent and fossil plants, and associated
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