 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.
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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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 Figure This! Math Challenges for Families  National Council of Teachers of Mathematics (NCTM)
Elementarylevel 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
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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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 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
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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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 Flashcards (A+ Math)
Java and nonJava homeworkhelper flashcards for practicing: Java (with answers and with or without sound): addition, subtraction, multiplication, division, square roots, and rounding; nonJava: addition, subtraction, multiplication, division, order of
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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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 Fractals  Cynthia Lanius
This lesson plan for exploring fractals is designed so 4th through 8th grade students can work independently and be assessed innovatively. It conforms to the 1989 NCTM standards, and provides links to other fractal sites. Contents: Why study fractals?
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 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
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 Free College Algebra and Trigonometry Notes  Michael Sakowski
These notes are in PDF and MS Word form. For the algebra notes, you may edit the MS Word form to your liking and then print to a PDF file. The trigonometry notes are in PDF format only.
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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  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, 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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 f(t)  Kate Nowak
A blog by a selfdescribed "fulltime math teacher, curriculum inventor and refiner, adolescent listener, correspondencetoparents writer, practice problem feedback giver, and examplesetter" who has taught high school math since 2005. Posts, which date
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 Fuel the Brain  Dynamics of Design
Educational games, interactives, printables, teacher guides, articles and tutorials, and seasonal resources. The "inevitable" product of an elementary teacher and her graphic/web designer spouse, Fuel the Brain's most popular Flash games include Jelly
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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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 Function Squashing  David Eger; Interactive Mathematics Online (IMO)
Exploring things you can do with periodic functions like sine and cosine; translation, and vertical and horizontal scaling.
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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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 funmaths  Fundamental Software
Download mathrelated games for Windows (the Rocky's Bouncer algebra game is free; others are shareware.) Teachers can trade worksheets online: everyone may see the measurement worksheets, but the other categories require that you submit your own worksheet
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 Funny Arithmetic  Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
A Java game: using arithmetic, logical, and bitwise shift operators and parenthesis, build an arithmetic expression with as many Base digits as specified in the Number of occurrences. Your expression should evaluate to the specified Goal. For example,
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 Fun, Puzzles, Travel  Paul Bourke
Brain twisters, arranged by approximate level, and designed for the most part to require no particularly advanced mathematical skills. Illusions include impossible triangle, MullerLyer, bad box, and Colours.
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 Futility Closet  Greg Ross
"An idler's miscellany of compendious amusements." Math posts, which date back to January, 2005, have included puzzles, curios, and trivia from the lives of famous mathematicians  all "selfcontained and written as concisely as possible"  such as
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 The Futures Channel
Curriculum resources in math and science to help educators connect learning to the real world for their students. The Futures Channel also provides professional development resources with content from master teachers Kay Toliver and Jaime Escalante. Some
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 Future School
Developer of educational software, online tutoring, and home schooling courses. Video tutorials. Sample lessons and ordering information available.
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 fxsolver  Equanalysis UG
Free equation solver with a formula database for quick calculations on tables and data input "without messing around with programming languages or spreadsheet software." Browse the hundreds of math formulas, then click the gray "Add to Solver" button
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 A Game of Numbers  Joseph Michels
This puzzle game for Windows, Mac, or Linux requires math and logic skills to solve increasingly difficult challenges  from basic math operations to divisibility, algebra, functions, and more. The builtin editor also lets players create their own levels,
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 Games2Learn
Vendor of educational games, software, and activities for both parents and teachers. The site may be searched by category (Math, Spatial Learning, Science and Tech, etc.), grade level, game type, or personality profile (Planner, Peacekeeper, Producer,
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 Games Conceived  Leroy Quet
Quet's blog, begun in September, 2008, describes his "simple games," which include Triangle Grid Of Coprimality; LineSegments In Circle; Turn It Around  Multiply/Add Grid; Up And Up, Grid Solitaire; Vertex/Intersection Polygon Game; Diagonal/Straight:
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 Gary Haynes  Gary Haynes
Course syllabi, lesson plans, homework, and objectives. Visit "Tangrams and Other Games" for an interactive tangram story and a Flash presentation on how to develop an understanding of functions through the use of the motion sensor.
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 Gateways to Advanced Mathematical Thinking (GAMT)  Michelle Manes; Education Development Center, Inc. (EDC)
The goal of this project is to research the ways in which high school and college mathematics students come to acquire flexible understandings of essential concepts needed for analytic and algebraic thinking. Integral to this research effort is the development
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 gealgerobophysiculus  Evan Weinberg
Thoughts on teaching, learning, and "the crazy process of having fun doing both with students." Posts, which date back to September, 2011, have included "How China Keeps Me Learning: Part I," "Lens Ray Tracing in Geogebra," "Take Time to Tech – Perspectives
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 GED Math Graphics  Howard Myers
Graphical GED test preparation designed for addiction treatment nonprofits, domestic violence shelters, community based organizations, and other, traditionally resourceconstrained programs attended by disadvantaged or indigent students.
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 GEM: Gateway to Educational Materials  National Library of Education (NLE)
A database for education links, intended to be more useful for teachers than a search engine. It records the resources of its consortium members (information on joining the consortium is available onsite). Users are able to: browse through lists organized
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 GeniusCorner  Dheeraj Khatter
Adaptive online learning platform for practicing math at your own pace. Freely access multiple choice and fillintheblank math quizzes, organized by grades from preK through eighth; GeniusCorner keeps time, scores responses, and offers explanations.
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 GeoGebra
GeoGebra is free dynamic mathematics software for schools that joins geometry, algebra, and calculus. Help, examples, screenshots, and more are available online. The GeoGebraWiki is a free pool of educational materials for GeoGebra where anyone can contribute
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 The Geomaths MathHelp material  University College London (UCL)
Part of the Interactive Mathematics and Geoscience Education (IMAGE) project, Geomaths MathHelp provides mathematics selfstudy material embedded within the geological sciences. MathHelp "notebooks" cover specific mathematical topics accessed through
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 The Geometer's Sketchpad: Classroom Resources  The Math Forum
Sketchpad and JavaSketchpad dynamic interactive geometry resources on the Math Forum Site: sketches, activities, and tours; MAA meetings and groups with presentations and sample sketches; Forum Sketchpad Web Units (Algebra & Calculus; Vectors; Morphing
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 The Geometer's Sketchpad  Key Curriculum Press
Geometry software for Euclidean, coordinate, transformational, analytic, and fractal geometry, recommended for students from grade 5 through college. Developed for geometry, students now also use Sketchpad's flexibility and reach to explore algebra, trigonometry,
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 The Geometer's Sketchpad Resource Center  Key Curriculum Press
Search collection of Sketchpad Classroom Activities for download or purchase, browse the Advanced Sketch Gallery, access Technical Support, explore some online JavaSketches created with Sketchpad, and find links to others' sketches and related resources.
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 Geometry Expressions  Saltire Software
A software package that allows you to interact with geometric figures numerically and symbolically. Explore classroom activities and student projects made with this interactive geometry system; read back issues of The Journal of Symbolic Geometry; purchase
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 geometrywiz  Teresa Ryan
Blog subtitled "learning about learning and teaching mathematics." Posts, which date back to November, 2013, have included "Reflecting on Learning Objectives," "Reflections and Inquiry," "What Started as Tough, Becomes Good," "Refresh, Reflect, and Reinvent,"
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 Getsmarter.org  Council on Competitiveness
A free web site designed to help improve math and science education. Interactive quizzes, games, and tutorials allow students to learn more about specific topics and improve their skills. MSTV, a series of interactive modules, shows how math and science
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 GirlTECH  Cynthia Lanius; Center for Research on Parallel Computation (CRPC)
GirlTECH was a teacher training and student council program that encouraged young women to pursue careers in mathematics and science, offering intensive technology training to explore innovative teaching strategies for gender equity in the classroom through
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 Global Institute of Mathematics  Jim Stone, Global Institute of Mathematics
A traditional high school curriculum of Algebra, Advanced Algebra, PreCalculus and Calculus, delivered online via email and the Web. Sample lessons available.
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 The Golden Ratio  Andi, Mel, and Shuj
An introduction to the golden ratio, also known as phi: its connection to the Fibonacci sequence, related constructions (star, line segment, rectangle, and spiral), and connections to biology, history, and aesthetics. Site also includes a glossary and
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 GOMATH  Cubic Science, Inc.
An Internet site to help high school students (grades 1012) of all levels with math skills. Programs such as Algebra 1 offer an interactive guide through a course and help students build up math skills and confidence. Math Programs are 46 week curricula,
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