 Age Word Problems  Math Forum, a Classic Problem from the Ask Dr. Math FAQ
A problem with one variable: Al's father is 45. He is 15 years older than twice Al's age. How old is Al? But what if we can't express all the information in the problem using only one variable? Sometimes we must use two variables to express the given
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 AGMath  Jason Batterson
Along with puzzles and competition materials, provides Algebra and Geometry resources for advanced middle and highschool students. PDF worksheets, transparencies, and problem sets. Includes information on a summer camp for middle schoolers, preparing
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 Agora Financial for Families  Group 3  GMU EDIT 730/752
Money management articles, lesson plans, and activities for selfstudy or teaching children and tweens about using money responsibly, budgeting, spending, and saving.
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 Aide en maths collège lycée
In French: Forum d'aide en maths destiné principalement aux collégiens et lycéens. Possibilité d'utiliser des notations mathématiques dans les messages et d'importer des documents. Aide rapide.
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 Aid for Calculus  John Taylor
Tutorials and practice questions for Calculus 1 and review topics.
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 Ainsworth Computer Seminar  Dick Ainsworth
Sample programs, flowcharts, and hypertext illustrating how software works. Select the desired level, from a quick overview of software to a detailed look at how these programs are developed. A special section for programmers and other curious people
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 Airplane Weight and World Population (Math Chat)  Frank Morgan; Christian Science Monitor
J. Henry asks whether, on a sinking boat, it helps to make parakeets in the hold fly around. K. Reinecke asks whether an airplane gets lighter when the passengers eat a meal. What causes an airplane to get lighter during flight?
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 Air Pollution: A Local and Global Problem  Karen Bardeen
Students investigate the problem of air pollution in a given location and research possible solutions using a variety of tools (laboratory technology, Internet resources, multimedia technology, etc.). Mathematics goals include estimating, making, and
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 The A. J. Pappanikou Center for Developmental Disabilities  University of Connecticut
A University Affiliated Program (UAP) sponsored by the Federal Administration on Developmental Disabilities through the U.S. Department of Health and Human Services. The Pappanikou Center UAP works with others to create opportunities that improve the
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 Akustische Täuschungen/Acoustic illusions  Stefan Scheller
Endlos ansteigende Melodien: Der ShepardEffekt. Endlessly rising melodies: The Shepard effect. (Illustration: M. C. Escher: Treppauf, treppab  ascending, descending.) Besides the wellknown optical illusions there are acoustic ones, too. Perhaps the
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 Alan Hensel's homepage  Alan Hensel
Instantaneously convert from decimals to fractions, as you type, with this JavaScript calculator. Hensel, a software developer, also offers a Java version of Conway's Game of Life, as well as interactive Twixt Quarterboard puzzles (Ajax) and a Twixt commentator
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 Alan H. Schoenfeld  Graduate School of Education, University of California, Berkeley
Download PDFs of publications on mathematics education and curricular considerations such as "Mathematics Teaching and Learning"; "The Math Wars"; "Learning to Think Mathematically: Problem Solving, Metacognition, and SenseMaking in Mathematics"; "Toward
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 Albert Einstein Online  S. Morgan Friedman
Information about Einstein, pictures, organizations that bear his name. Biographies, Hong Kong Baptist Univ. and MacTutor History of Mathematics Archive; Einstein's History; Obituary; Information, David Joyce; Einstein's interview with the FBI; Why Socialism?
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 ALEKS  UC Regents and ALEKS Corporation
An allJava, Webbased oneonone math tutor on the Internet that adapts continuously to the student, maintaining a map of each student's knowledge state. Try a free 48hour demo.
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 Alexandre Borovik
Borovik teaches and researches group theory at the University of Manchester (UK), where he is a Professor of Pure Mathematics. See his eightpoint teaching manifesto, read about his methodology, and download slides of selected talks, which include "Hidden
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 Alex Bateman's Origami Page
Models by Alex Bateman, Dino Andreozzi, Nick Robinson, and a duck by Edwin Corrie. Includes directions for folding some origami tessellations: square dance, honeycomb, linked circles. Spirals based on Voderberg's tilings, tessellations based on 6.3.6.3
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 Algebasics  Algebasics.com
Watch free Flash tutorials about algebra, organized under the following topics: Basics of Algebra, Equations, Ratio & Proportion, Inequalities, Absolute Value, Exponents, Polynomials, Factoring, Rational Expressions, Rational Equations, Linear Equations,
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 Algebra1: Graphing Linear Equations  Tim O'Brien
A Master's Degree project designed to provide an understanding of the graphing of linear equations at the Algebra 1 level. Use Java applets to learn about ordered pairs, graphing equations, horizontal lines, vertical lines, slope, equations and slope,
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 Algebra 4 All
A community of educators sharing resources and supporting one another in the practice of teaching algebra: lesson sharing, applets for students and teachers, discussion forum, blogs, media, and other content related to the functionsbased approach to
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 Algebra, Abstract and Concrete  Frederick M. Goodman
An undergraduate textbook (Prentice Hall, 1998). The book is intended to be useful for a course in modern algebra for beginners or a slightly more advanced course, or an undergraduate course on geometric aspects of group theory or Galois theory. Interactive
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 Algebra: A Complete Course On Video  VideoText Interactive
A complete Algebra course on videocassette to purchase for home use or the calssroom: video lesson tapes, course notes, worktext, solution manuals, and progress tests. A free video sample is available onsite.
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 Algebra and Calculus Sketches  Ruth Carver
See how the graph of y=mx+b changes as m or b changes; how the graph of y=ax^2+c changes as a or c changes; how the graph of y=a(xh)^2+k changes as a,h and k change; and examine five Geometer's Sketchpad sketches showing how to find equations of tangent
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 Algebra and Trigonometry Web Site: Semester 1 (MQ5)  Gary Jaye, Department of Mathematics, Stuyvesant High School
Algebra and trigonometry exams, dating back to 1995, given by a Stuyvesant High School mathematics teacher. Answers accompany all the tests, making them suitable for practice, review, or selfassessment.
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 Algebra Avenue
An interactive algebra tutorial program available by subscription. Sample Algebra Avenue's free problem (worksheet) generator and demo tutorial.
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 Algebra Class  Karin Hutchinson
These free Algebra lessons are written by a Math teacher for students who are having difficulty with Algebra 1. Each lesson is presented with several detailed examples, many practice problems, and an answer key. A perfect solution for students in need
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 Algebra Coach  Eric Hiob
Freeware (but please register) for use on Windows 95 and higher. The Algebra Coach shows the user stepbystep how to solve any equation or simplify any expression that they enter. It also shows how to solve any system of linear equations by substitution
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 Algebra Equation Worksheet Generator  David Craft
A free Webbased tool for making customized algebra worksheets. It includes linear equations, systems of linear equations, and quadratics; the teacher can choose whether or not to include fractions and negatives.
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 Algebra for Athletes.com  Cameron Bauer
Excerpts from the Nova Science Publishers, Inc., book Algebra for Athletes: algebraic laws illustrated in a variety of sports scenarios; exponents and weight room mechanics; linear equations and speed; vectors and golf; quadratic equations and parabolas;
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 Algebra Funsheets
Algebra worksheets that integrate Algebra skills with sudoku, riddles, games, word finds, etc. Created by an algebra teacher. Browse topics covered, see sample worksheets, or subscribe for complete access.
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 Algebra Glossary of Terms  Annie Nielson
A glossary of algebra terms taken from Houghton Mifflin's Algebra Structure and Method Book 1.
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 Algebra Help Hub
This website offers explanations of concepts in algebra at the high school level.
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 Algebra.Help  John Traker
Algebra.help is an online resource designed to help people learn algebra. It offers lessons to teach or refresh old skills, calculators that show how to solve problems stepbystep, and interactive worksheets for testing skills. To be notified of updates
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 Algebra Help  Math Forum, Teacher2Teacher FAQ
Answers to a frequently asked question: How do I help students learn algebra?
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 Algebra Help Tutorials
HelpAlgebra.com provides free algebra tutorials, glossaries, calculators, software reviews, and general algebra help.
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 Algebra Homework Help  Math.com
A site for practicing algebra and measuring your level. Units include The Language of Algebra; The Basics of Algebra; Equations and Inequalities; Graphing Equations and Inequalities; Tables and Formulas. Includes unit quizzes.
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 AlgebraHouse.com  Mr. Sims
Algebra 1 and 2 notes in stepbystep PowerPoint form—with a Microsoft Viewer for download, as the files are passwordprotected otherwise. Also, a variety of Algebra 1 and 2 questions with answers on various topics.
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 Algebraic Addition (SMILE)  Alex Junievicz, Kelly High School
A lesson that uses play money and IOUs to reinforce concepts around negative numbers. From the Algebra and Trigonometry section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for Learning Enhancement.
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 The Algebraic Method  R. H. Logan
An explanation of the algebraic method, involving an algebraic relation between two or more variables with one variable expressed as a function of one of the others. Includes Algebraic Manipulation (Transformation of Variables); Continuity Principle of
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 Algebraic Reasoning  MATHCOUNTS
About algebraic reasoning  the ability to think logically about unknown quantities and the relations between them  and how to develop it, with examples.
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 Algebra in Simplest Terms  Annenberg Media
In this video series for college and high school classrooms and adult learners, host Sol Garfunkel explains how algebra is used for solving realworld problems. Free sign up is required for firsttime users of the online videos. Materials (videos and
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 AlgebraLAB: Making Math and Science Connections  Mainland High School (Daytona Beach, FL), Georgia Southern University
Created by mathematics and science teachers, AlgebraLAB is designed to focus on topics and skills from high school mathematics that students must be able to draw upon in their introductory college science courses. AlgebraLAB focuses on lessons and practice
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 Algebra Master  AlgebraPoint
Commercial software that solves algebra problems and simplifies algebraic expressions stepbystep, with explanations. Demonstration available online.
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 ALGEBRA  Mathematical abstraction from concrete experience  College of Early Learning
How a Montessori student learns algebra while interacting with manipulatives represented by expressions incorporating numerals and variables. Contents include: The proper interpretation of a numeral by answering three questions: How many objects? What
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 Algebra (MathPages)  Kevin Brown
More than 50 "informal notes" by Kevin Brown on algebra. Kummer's Objection; irreducibility criteria, multiple linear regression, string algebra, characteristic polynomial of a matrix, iterated means, sums of powers, polynomials from Pascal's Triangle,
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 AlgebraNet
Software for explanation and demonstration of elementary algebra techniques (reducing, simpifying, factoring, equations).Testing facilities. Free demo; fee for full version. In English or Dutch.
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 Algebra, Philosophy, and Fun  Ivars Peterson (MathTrek)
About the book Philosophy and Fun of Algebra, written by Mary Everest Boole (18321916) and published in 1909. "Boole's gentle, conversational introduction to algebra is meant for children. It also serves as a window on
math educationas it was perceived
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 Algebra Postulates  Jaime Garmendia III; Interactive Mathematics Online (IMO)
Things you can do with equations and inequalities  the basic postulates of equality, inequality, and operations. Example: Postulates of Operation: Commutative Property of Addition: a+b=b+a; Commutative Property of Multiplication: a*b=b*a; Distributive
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 Algebra PowerPoint Lessons  James Wenk
A collection of PowerPoint lessons written by a teacher and currently used in his classroom. The lessons complement McDougal Littell's Algebra 1 Concepts and Skills by Larson, Boswell, Kanold, and Stiff. Preview the slides without animation. Purchase
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 Algebra PowerPoint Lessons  James Wenk
PowerPoint lessons to purchase, designed to help teachers integrate technology and improve student performance and interest in algebra. Plans meet state standards and can be modified to suit teachers' needs.
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 Algebra Problem of the Week  Math Forum
Algebra problems from a variety of sources, including textbooks, math contests, NCTM books, and puzzle books, and reallife situations, designed to reflect different levels of difficulty. The goal is to challenge students with nonroutine problems and
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