 FractImage  David Rose
Preview jigsaw puzzle images that exhibit selfsimilarity, and purchase the puzzles online. Visit the fractal gallery; read about fractals and FractImage; and download fractal wallpaper for your desktop.
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 Fraction Calculator  Luke Palder
A free online fraction calculator that includes written stepbystep guides to adding, subtracting, multiplying and dividing fractions.
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 Fraction Help  Math Forum, Teacher2Teacher FAQ
Answers to a frequently asked question: How do I help students learn about fractions?
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 Fractions and Corresponding Percents  NASA Lewis Learning Technologies Project
Which statement is correct? 27 percent < 1/4; 12 percent = 1/8; 3 3/5 = 335 percent; 2/3 > 66 percent. A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test.
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 Fractions and Repeating Decimals  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about fractions and repeating decimals, such as how to convert a recurring decimal to a fraction, why this work, and how to tell whether a fraction will be a repeating or a terminating decimal.
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 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
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 Fractions, Decimals, Percentages  Math Forum, Ask Dr. Math FAQ
What are simple, complex, and compound fractions? How do you convert decimals and percentages to fractions?
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 Fractions & Mixed Numbers  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about improper fractions and mixed numbers, such as how to multiply and divide mixed numbers, and how to order improper fractions.
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 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:
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 Fractions (S.O.S. Mathematics)  Dept. of Mathematical Sciences, Univ. of Texas at El Paso
A math review for people who have forgotten what they once knew about fractions. Simple fractions (Identification; Factoring Integers; Reducing Fractions; Multiplication; Division; Building Fractions; Addition; Subtraction; Order of Operations). Complex
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 Fractions (The Math League)  Mark Motyka; Math League Multimedia
A page of information about fractions, from prime numbers and factoring to repeating decimals.
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 Fractions Worksheets
Worksheets and lessons on fractions: equivalent fractions, comparing fractions, adding fractions, subtracting fractions, reducing fractions, multiplying fractions, and dividing fractions. See also the blog at http://fractionsworksheets.com/.
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 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
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 Franklin Institute Science Museum  Philadelphia, Pennsylvania
The online entry point for the Philadelphia science museum, featuring indepth multimedia virtual exhibits and explorations, resources for teachers, and guides to the reallife museum and its programs. The website features a large selection of educational
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 Franklin's Mathematics  Paul C. Pasles, Villanova University
From the author of Benjamin Franklin's Numbers: articles on the founding father's "littleknown role as a mathematician," and examples of Franklin's magic squares and magic circle.
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 Freaky B's Disc Golf  ridiculopathy.com
Fling a virtual frisbee through an eighteenbucket disc golf course subject to wind and collision effects. Requires the Flash plugin.
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 Free Daily Sudoku Puzzles
For this canonical puzzle the aim is to fill every square in the 9x9 grid with a number 19. 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
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 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
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 Free Math Education Online Tutorials  Kirti Sharma
Free math primers, lessons, and practice problems  with mouseover and clickable solutions  on adding and subtracting algebraic expressions, properties of operations, the absolute value function, the number system, solving quadratic equations, intercept
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 Free Math Help  Florent Gouachon; fmaths.com
Free math lessons and problems from 1st Grade to 11th Grade. Free signup required in order to save your work.
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 Free Math Help  Ted Wilcox
Free tutorials, glossary, study tips, calculator advice, and more, including annotated links to other resources.
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 Free Math Resources  Varsity Tutors
Free math questions of the day, flashcards, more than a hundred diagnostic tests, and thousands of practice tests. A private tutoring service, Varsity Tutors also offers practice for standardized tests such as ACT, SAT, GRE, GMAT, LSAT, MCAT, ISEE, and
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 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
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 Free Math Tutoring  Doug Simms
Online instructional videos, many accompanied by example and exercise sheets. Use of the site is free.
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 Free Math Worksheets
Free math worksheets to download, print, and practice addition and subtraction; multiplying; divisibility and factors; greatest common factor (GCF); least common multiple (LCM); simplifying numerical fractions; converting percents, decimals, and fractions;
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 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.
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 Free Online Unit Converter
Convert quantities of mass, area, angle, length, volume, pressure, temperature, and data storage by selecting the unit of measures from pulldown menus. This utility from PDFConverter.com also adjusts the current time according to time zones.
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 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 email. Online games and puzzles include a chess knight game and Hangman.
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 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
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 Free Tiiu Pix  Tiiu Roiser
A collection of thousands of free, highresolution 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,
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 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.
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 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
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 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.
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 From Chaos: Beauty  Kitara
Fractal galleries created using UltraFractal.
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 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
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 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 SchmandtBesserat of the University
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 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.)
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 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 ndigit
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 From Now On
A Monthly Electronic Commentary on Educational Technology Issues. Previous issues archived by theme and date; since 1991.
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 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
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 The Fruit Game
An interactive game in which players take turns removing fruit from the table according to the rules. The player who removes the last fruit from the table loses. Based on the mathematical puzzler known as the game of Nim.
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 Fun 4 the Brain  Natasha Oliver
Flash games in addition (snowy fun and farm freakout), subtraction (color your vacation and "Can You Dig it?"), multiplication (ping pong the panda and granny prix), and division (Peabody the Penguin, and Sketch), with selfgrading timed quizzes in some
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 Fun and Sun RentACar  Cynthia Lanius
A Java or print lesson plan: investigate using tables, graphs, and linear functions to solve a realworld problem. Includes teacher notes with standards alignment and procedures.
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 FUNBRAIN: Educational, Online Games for Kids  The Learning Network
Interactive, educational math games for kids and children of all ages. Games include Math Baseball and Power Football (test your arithmetic at four possible levels), and Change Maker (run a cash register), as well as Fun Match (a memory game for fractions
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 A Functional Housing Market  Susan Boone
Students use the Internet to search for housing prices in Houston, Texas, (the location can be changed to accommodate any location) and compare the prices to the number of square feet found in the living area of a house. A linear equation is derived from
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 Functional Mathematics  Farman, Danny; and Hoskin, Danny
A scheme of functional units that both challenge and engage the pupils in "FUNctional skills." Freely download PowerPoint presentations and PDFs of projects such as Build a Farm; Cost of Christmas; Mobile Phone Deals; Easter Egg Hunt; Design a Sports
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 Function Machines  Maria Droujkova, Dmitri Droujkov; Natural Math
For children and adults who are starting to develop the concept of function. The authors advise approaching the concept early in life using common sense and intuition, returning to it again and again, each time with a new level of understanding. The units
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 Fundamental Concepts of Fractions  Goalfinder
Commercial interactive fraction animation in Flash format; covers types of fractions, mathematical operations with fractions. Intended to use stories and entertainment to make learning fractions fun.
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 FUNdamentally MATH  Chip Publications
A commercial DOS/Windows program covering kindergarten through grade 12 math topics (Basic skills: Addition, subtraction, multiplication, division, negative numbers; Fractions: ordinary and decimal; Middle school geometry; Exponents: powers, roots, number
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 The Fundamental Theorem of Algebra  MacTutor Math History Archives
Linked essay covering from Cardan in the 1500's to the Euler and Argand proofs through the 1800's, with 8 references (books/articles).
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