 17Calculus
Concepts, examples, videos, and practice problems to help students better understand the concepts of precalculus, single variable calculus, multivariable calculus, and differential equations. Formerly known as MathZar.
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 24HourAnswers.com, Inc.  24HourAnswers.com, Inc.
Emailed answers to questions and homework problems, online tutoring, and a section of free SAT math prep packets: 30 highlyfocused skill packets with answer keys and level of difficulty for each problem.
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 3D Drawing and Geometry  Cathi Sanders
A Math Forum Summer 1998 Institute project that uses examples of paintings, architecture, etc. to analyze different types of 3D drawings, and teaches students how to create them. Careers in 3D drawing that use these techniques, from architecture to
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 The 4th Spatial Dimension
An introduction to the visualization of 4 dimensional space. Numerous resources.
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 The Abacus: The Art of Calculating with Beads  Luis Fernandes
A tutorial on using the abacus  a calculator whose earliest known use is circa 500 B.C. by the Chinese civilization. Addition, subtraction, division and multiplication can be performed on a standard abacus. Beginning in about 1600 A.D., use and evolution
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 About Rainbows  Beverly T. Lynds
A tutorial on the physical nature of the rainbow, with graphics and text references. The traditional rainbow is sunlight spread out into its spectrum of colors and diverted to the eye of the observer by water droplets. The "bow" part of the word describes
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 About Rubik's Cube  Dan Knights
See the author's collection of Rubik's cubes, his solution and timing methods, thoughts on solving Rubik's Cube with your eyes closed, and suggestions for lubricating your cube and where to get them.
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 Advanced Learners Math Tutors  advancedlearners.com
This company provides inhome private math tutoring, at the K12 or collegiate level.
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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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 Aid for Calculus  John Taylor
Tutorials and practice questions for Calculus 1 and review topics.
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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 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 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 Tutorials
HelpAlgebra.com provides free algebra tutorials, glossaries, calculators, software reviews, and general algebra help.
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 Algebraic Systems  Christer Blomqvist
Definitions, descriptions, and the basics of Abstract Algebra: groups, rings, fields and the like.
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 Algebra Reference Sheets (S.M.A.R.T.)  Math Share Shop
Combining signed numbers; Polynomials and fractional equations; Factoring trinomials; Quadratic equations; Graphing linear equations. By students at Theodore Roosevelt H.S., Bronx, & Edward R. Murrow High School, Brooklyn.
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 Algebra Review in Ten Lessons  D. P. Story; Mathematics & Computer Science, University of Akron
A tutorial written in TeX and converted to Adobe Portable Document Format (PDF). Features include verbose discussion of topics, typeset quality mathematics, user interactivity in the form of multiple choice quizzes, inline examples and exercises with
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 Algebra (Seeing is Believing)  De Silva, D'Andreti; ThinkQuest 1997
An algebra tutorial, comprising: mathematical numbers; real number system; numerical representations in algebra (algebraic expressions); algebraic techniques (factoring); quadratic equations and inequalities; graphing (coordinate systems, conic sections,
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 Algebra (S.O.S. Mathematics)  Dept. of Mathematical Sciences, Univ. of Texas at El Paso
An online course: learning units presented in worksheet format review the most important results, techniques and formulas in college and precollege algebra. Sections include: Fractions; Units of Conversion; Complex Numbers; Quadratic Equations; Factorization
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 AllAmerican Supertutors  Robb Gott
A nontraditional approach to math tutoring. Inperson or online tutoring sessions.
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 All Ivy Tutoring
Phoenixbased tutoring service providing oneonone, inhome tutoring, offering help in all math subjects from basic math through college level differential equations and linear algebra.
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 All Star Tutoring
Professional oneonone tutoring services in New York City's boroughs, including GED test preparation, citywide exams, and Regents exam preparation.
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 Amazing Seattle Fractals  Tutorials  Doug Harrington
Fractal art galleries, fractal tutorials, slide shows, software downloads, guest galleries and more. Four different online fractal art tutorials illustrate step by step how to get started creating this art form based on mathematics.
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 Amby's Math Instruction, Reinforcement, and Learning Activities  Amby DuncanCarr
Stepbystep tutorials, with autoscoring quizzes: order of operations, solving word problems, properties of numbers, prime numbers, prime factorization, greatest common factors (GCF), least common multiples (LCM), simplifying (reducing) fractions, changing
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 Amlon Tutors
Private tutoring service based in New York City, covering the NJNYCT area. Math topics covered include: Elementary, Algebra, Geometry, Trigonometry, PreCalculus, Calculus, Sequential I, II, II, Statistics.
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 Amplify U Learning Centre  Ahmed Harb
Academic tutoring in math and physics, with mentoring, and peer networking, for grades 712.
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 Applied Chaos Lab (ACL)  Dr. W. Ditto; Georgia Tech University
The ACL covers a broad range of analysis and application of chaotic behavior and related phenomena. Much of the research is done in conjunction with researchers at other universities and extends into biophysics and other interdisciplinary areas. Researchers
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 AP Test Prep Books
Find an AP prep book for multiple subjects, including AP Calculus, Computer Science, Economics, Physics, and Statistics.
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 Ask Dr. Callahan  Dale Callahan
For the homeschooling parent who needs high school math and science training material: textbooks, videos for the parent and child, teaching guidelines, tests and test grading guides as well as support for the duration of the course. Courses in geometry,
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 Austin Math  Tutor  Tim Pham
AustinMath.com is a private tutor service that specializes in Math and Science.
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 Austin Tutors: Tutoring in Austin, Texas
Commercial tutoring service around Austin, Texas, for high school and college students, and test prep.
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 Authentic Assessment Toolbox  Jon Mueller
A howto text on creating authentic tasks, rubrics and standards for measuring and improving student learning, including an introduction to the topic with comparison to traditional testbased assessment, why and how best to use it, standards, tasks, rubrics
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 Autograph (Mathematics)  Eastmond Publishing Ltd
Autograph is visualization software that operates in two modes: graphs, coordinates and bivariate data; and singlevariable statistics and probability. Resources include graphs, statistics, screencam demos, Microsoft Word worksheets, PowerPoint presentations,
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 Bagatrix Mathematical Software  Bagatrix Solutions, Ltd.
Commercial software that features stepbystep solutions to userentered problems, with prompting. Titles include: Solved! Studio (comprises Basic Math, PreAlgebra, and Algebra titles), Algebra Solved!, PreAlgebra Solved!, Basic Math Solved!, Graphing
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 The Basic Math Quick Reference Handbook  Pete Mitas
This handbook, written by an experienced math teacher, lets you quickly look up definitions, facts, and problem solving steps. It includes over 700 detailed examples and tips to help someone improve
their mathematical problem solving skills. The web
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 Basic Math  tutorspree
Brief math explanations from the tutor matching referral service: numbers; equalities and inequalities; operations on numbers; properties of numbers; factors, multiples and divisibility; fractions; units of measurement.
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 Basic TI82 Tutorial  University of Illinois at UrbanaChampaign
An online interactive tutorial that starts from scratch with turning on the TI82 calculator and takes you through the basic steps needed to do arithmetic and function evaluation and to enter, graph, and tabulate functions. You use a TI82 as you view
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 Basic TI92 Tutorial  University of Illinois at UrbanaChampaign
An online interactive tutorial updated for the new TI92 layouts and commands. It begins with turning on the TI92 calculator and proceeds through the basic steps needed to do arithmetic and finally to entering, graphing and and tabulating functions.
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 Bayesian Networks Tutorial  Santos, Benslay; University of Connecticut
Introductory material on Bayesian networks and the probabilities involved, with a Bayesian Networks Bibliography of resources for Computational Complexity; Fielded Systems; General References, Tutorials, and Surveys; Knowledge Engineering and Maintenance;
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 Bisection Method Tutorial  Joseph L. Zachary
A tutorial that explores the bisection method for finding the roots of equations. Includes a Java applet that opens in a separate window, for use alongside the tutorial. From a Computer Science course at the University of Utah, and the book Introduction
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 Blacks Academy  Blacks Academy
Extensive database of high school level resources for mathematics, suitable for teachers and independent students. Free with registration required. Britishbased curricula are served, but could be of great interest to American students, including sophomores.
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 BrainPOP Math  BrainPOP, LLC
Short animated films that are simple and easy to understand on elementary mathematics, as well as health, science, and technology. Films often accompanied by quizzes.
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 By the Numbers  Kinder Magic Software
Practice basic consumer math skills with Java applets that pace you though arithmetic problems, step by step: addition or subtraction of whole numbers or of decimals, percent markup, multiplication by one and twodigit numbers, multiplying decimals,
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 Cabri Geometry: Classroom Resources  The Math Forum
The Math Forum's page of links at the Forum and on the Web to dynamic interactive geometry classroom resources for Cabri Geometry. Books and Web sites; Frequently Asked Questions; exploring the basics; workshops; excerpts from the journal abraCAdaBRI;
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 Cabriology  Fréderic Louis
In Dutch: a website about the software Cabri Geometry, with tutorials, videos, pictures and more.
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 Calcul à Plusieurs Variables  Pierre Joyal, Armel Mercier
Site in French. An abundant documentation on several variable calculus, including numerous Flash and Java animations.
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 Calculus Applied to Probability and Statistics  Waner, Costenoble; Hofstra University
A text on the WWW for liberal arts and business majors. Contents (each with exercises): Continuous Random Variables and Histograms; Probability Density Functions: Uniform, Exponential, Normal, and Beta; Mean, Median, Variance and Standard Deviation; You're
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 Calculus Made Easier: A Calculus Tutorial  Angela Olson
An introduction to the concepts of calculus. Basic limits, derivatives and integrals are defined. Includes a short resource list.
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 Calculus on the Web (COW)  Mendoza, Reich; Department of Mathematics, Temple University
A collection of autoscoring calculus modules organized into books, chapters, and sections, with help and hints for the problems. Modules with asterisks (including chain rule, Taylor polynomials, Riemann sums, and arc length) allow you to change values
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