 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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 FlowingData  Nathan Yau
FlowingData explores how designers, statisticians, and computer scientists use data to understand ourselves better  mainly through data visualization. This blog, by a PhD candidate in statistics with a background in computer science and design, dates
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 FlyBase: A Database of the Drosophila Genome  Berkeley & European Drosophila Genome Projects
A searchable database of maps, genes, transposons, aberrations, stocks; genome projects, references, people, and images (body parts).
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 Flying Between Two Trains  Math Forum, Ask Dr. Math FAQ
Two trains 150 miles apart travel toward each other along the same track, the first train at 60 mph, the second at 90 mph. A fly buzzes back and forth between the two trains until they collide. If the fly's speed is 120mph, how far will it travel?
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 Flying Colours Maths  Colin Beveridge
Maths tutoring services by the author of Basic Maths for Dummies, Numeracy Tests for Dummies, and The Little Algebra Book: technical writing, "bespoke Excel solutions," project feedback, and "translating maths into less complex English." Blog posts, which
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 fMath: Mathematics on Web  Ionel Alexandru
fMath is a free Flash and Javascript library for displaying mathematics on the web: display equations in your site, edit the equations online, display graphs in your site.
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 Focus on Calculus  John Wiley & Sons, Harvard University
A newsletter for the Calculus Consortium based at Harvard University, from John Wiley & Sons College, publisher. Sample articles, conference announcements, new and forthcoming textbooks.
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 Focus on Mathematics  Department of Mathematics and Statistics, Boston University
Focus on Mathematics (FoM) seeks to "improve student achievement by providing mathematics teachers with the content knowledge and skills valuable in their profession." FoM programs have included math expos and math fairs of student research projects;
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 "F.O.I.L.: Keepin' Algebra Fresh" TShirt  Shamplade.com
Need some help with the distributive property? This is a great Tshirt that demonstrates FOIL in a "hip" way. Purchase with PayPal.
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 Fold Everything  National Geographic Society
See how paperfolding inspires the design of aircraft, stent grafts, and the packaging and transportation of telescope lenses in this overview of the history and future of origami. With downloadable instructions for folding a peacock, as well as an online
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 Folding and Unfolding  Eric Demaine
A series of pages detailing research and findings in origami, including: fold and cut, folding silhouettes and wrapping polyhedra, map folding, unfolding polyhedra, folding polygons into polytopes, linkages, protein folding, hinged dissections, hyperbolic
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 Folding Maps  Ivars Peterson (MathTrek)
Erik D. Demaine of the computer science department at the University of Waterloo
in Ontario and his coworkers have developed an efficient method for recognizing when a creased sheet is foldable into a flat package (results are reported in an unpublished
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 Folding Paper in Half 12 Times  The Historical Society of Pomona Valley
In 2001, a high school junior from California successfully folded a single sheet of paper in half 12 times, dispelling the longheld conventional wisdom of 7 folds as the maximum. See the limiting equation for single and alternate direction folding that
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 FOLDOC: Free Online Dictionary of Computing  Denis Howe
A searchable dictionary of acronyms, jargon, programming languages, tools, architectures, operating systems, networking, theory, mathematics, telecoms, institutions, companies, projects, products, history, in fact anything to do with computing  and broad
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