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• Reference: Ask an Expert  (101)
• Reference: Education: K through 12  (3,225)
• Science: Educational Resources  (356)
• Science: Math: Calculus  (95)
• Science: Math: Chaos and Fractals  (280)

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• ACTS Mathematics - Irish school mathematics review, with answers.
• Answering Mathematics Helper - Exercise tool to practice addition, subtraction, multiplication, division, trigonometry and fuzzy logic problems.
• BrainTrax - Offers assistance in algebra, geometry, trigonomety and calculus. Contains real-world examples, detailed example problems, and interactive features. Internet Explorer 5.0+ on a Windows PC is required.
• Bymath.com - Online mathematical high school. Includes sections of curriculum of elementary mathematics and practice tests.
• Canadian Mathematical Society - Math Projects for Science Fairs - Offers ideas for contestants for various topics such as numbers, time scheduling, games, geometry, and combinatorics.
• Children's Mathematics - A network of teachers, educators and students interested in supporting and developing children's early graphic interpretations of mathematical concepts.
• Chisenbop Tutorial - A method of doing basic arithmetic using the fingers that is attributed to the Korean tradition.
• Common Errors in Undergraduate Mathematics - Describes the errors seen most frequently in undergraduate mathematics, the most likely causes and remedies. Avoid these in order to improve class performance.
• Coolmath.com - An amusement park of mathematics. Puzzles and number problems, fractals, geometry, calculus, algebra, online games, online calculators, and links.
• Cornell University: Historical Math Monographs - Digital images of many famous and important math texts Indexed by author and title.
• Count On - Features games, puzzles and competitions for all ages. Details of events, an online maths museum, newspaper and magazines. Resources for parents and teachers.
• Curious Math - Tricks and rules for quickly calculating certain types of problems. Also has some entertaining trivia and facts that are nice to slip into casual conversation.
• Cut the Knot: Interactive Mathematics Miscellany and Puzzles - Features instructional games and puzzles based on a variety of math topics. Includes more serious articles about the language of math and related links.
• Cynthia Lanius: Fractals - Features class exercises and lessons or making fractals. Includes explanation of this unique image and types of formulas that are used to create it.
• A Different Place - Gateway to standards-based mathematics education. Internet resources to improve teaching learning of school mathematics based on the NCTM Priniples and Standards for School Mathematics.
• Dyscalculia - Explains what this math learning difficulty is, signs of a child having this disease, and basic screening topics.
• Dyscalculia - A personal account of the mathematical learning disability.
• GCSE Maths Revision - Features brief reviews of basic math concepts, from numbers and fractions to probability and statistics. Also, includes formula page and help forum.
• Gelatinous Vector Components - Meant for Grade 7-9 (age 12-14), younger and older. This experiment demonstrates the x and y components of a vector force.
• Innumeracy.com - Common mathematical and logical errors.
• Interactive Math Server - Interactive exercises, online calculators and plotters, mathematical recreations. Available in French and English.
• An Invitation To Mathematics - A free tutorial that explains difficult algebra, trigonometry and calculus concepts to beginning middle/high school students in a simplified way that they can understand and use.
• K-12 Activities - MathMol (Mathematics and Molecules) is designed to serve as an introductory starting point for K-12 students and teachers interested in the field of molecular modeling and its application to mathematics.
• Keith Devlin - The Math Guy - The professor is a regular visitor to NPR's Weekend Edition, where he discusses math topics, both popular and theoretical. Includes links to NPR segments for this show since 1995.
• LD OnLine : Math Learning Disabilities - Long article providing descriptions of various math learning disabilities.
• The Living Mathematics Project - Working to apply recent advances in computer programming languages and the technology of the World Wide Web to construct a new medium for the communication of Mathematics. Includes links to several visualization sites. [Java.]
• Math Abundance - Tutorial covers trigonometry, vectors, lines,complex numbers, cubic equations sequences and limits, continuity derivatives, minimum and maximum values, exponential and logarithmic functions, hyperbolic functions, finding roots of equations, integration, polar coordinates and integration.
• Math as Language - A brief discussion of math lingo and how it is different from regular communications. Includes additional resource links.
• Math Centre - Free mathematics support materials for UK university professionals and students.
• Math Corner - Visitors can test their math skills and do research. Also, offered are math supplies like: books, calculators, and software.
• Math Forum Quick Reference - Resources for teaching all levels of K-12 math.
• Math Help - Tips and techniques for sixth grade math through high school, and offers one-on-one help for math students using a variety of methods.
• Math in Daily Life - Virtual exhibit looks at the ways people use math every day, from cooking to planning for retirement. Offers teachers labs and workshops.
• Math Magic - K-12 telecommunications project motivates students to use computer technology while increasing problem-solving strategies and communications skills. Posts challenges in four categories (k-3, 4-6, 7-9 and 10-12) to trigger each registered team to pair up with another team and engage in a problem-solving dialog.
• Math Notes - Quick reference for basic algebra, trigonometry, geometry, calculus, and physics formulas. Includes online calculators.
• The Math Page - Arithmetic and trigonometry courses taught at Borough of Manhattan Community College, The City University of New York.
• Math Skills - Provides regular newsletters, survey data, a discussion group and conference details, as well as resource lists.
• MathBank - A resource bank of teaching material for lecturers and students in mathematics at UK universities. Free upload and download of material. Registration required.
• Math.com - Homework help, tutoring, and formulas.
• A Mathematical Fair in Kazakhstan - Puzzles and educational projects in maths.
• Mathematical Musings - Articles on mathematics, problem of the month, software and computing projects, and other resources.
• Mathematically Correct - Critiques and concerns regarding various reform efforts, fads and trends in math instruction, described as "fuzzy math" or "New-New Math." Includes news from the "math wars" and resources for assessing different curricula.
• Mathematics Education Digests - Topical articles for educators, originally produced for the US Department of Education ERIC clearinghouse.
• Mathematics Experiences Through Image Processing (METIP) - Materials that promote digital image processing as a means of motivating K-12 students in mathematics and as a means of teaching mathematical concepts.
• Mathematics for Mechanics - Topics: Algebra, Geometry, Trigonometry, Analytical Geometry, Calculus, Vectors. Teaching material and tests. Pages created by Mehrdad Negahban and the University of Nebraska.
• Mathematics Learning and Assessment - Sharing Innovative Practices. A report on innovations at various UK universities.
• The Mathematics of Cartography - Learning math through maps.
• Mathematics Reference - Trigonometry identities and calculus rules for integration and differentiation.
• Mathematics, Statistics and Operational Research - Information, resources and links to learning and teaching.
• Mathguide - A mathematics-related, one-stop website for interactive lessons, puzzles, educational issues, terminology, help, projects and lessons.
• MathSphere - For teachers and parents to download practice worksheets and tests to improve children's achievement. Competitions, children's pages and children's contributions.
• Mathstutor - GCSE mathematics explanations, examples and exercises. Also, English football club statistics.
• MathWorld Interactive - Participating students from all over the world work on open-ended word problems called MathWorld Interactive Challenges. During the cycle, students discuss, share ideas, meet each other, and ask questions on the he MathWorld Interactive Message Boards.
• Mazes from Newton's Apple - What does mathematics have to do with mazes? What is the history behind mazes? Are there different kinds of mazes? What is topology? David solves a maze by applying the principles of mathematics.
• MCA's Free Online Math Lessons - Features selected learning modules for arithmetic, algebra, geometry, trigonometry, statistics and probability. Includes some resource links.
• Mega-Mathematics - An educational project of Los Alamos National Laboratory.
• Meridian Creative Group - Creates educational print and software programs that teach math concepts with real-life applications.
• Mortensen Math - Products designed for a mathematics curriculum by an educator and mathematician. Includes online activities for kids.
• Mr. Heitmann's Mega Math Resource Page - Links to math terms, mathematicians, math games, and help in algebra and geometry.
• Multiplication Help - Learn to multiply by counting with fingers. Fee based service.
• Murderous Maths - Books, games, hints, tricks.
• Natural Math - To create and then develop an environment for learning mathematics. Articles, software tools and links.
• Navigational Vectors - Interactive site allows students to solve a real world problem using science and mathematics. Learn about vectors by using real-time weather maps and by tracking real planes flying in the U.S. skies.
• Newsgroup k12.ed.math - Web page for the newsgroup k12.ed.math. Contains the charter, FAQ and other information about the newsgroup.
• NRICH-Online maths club - An online maths club for young mathematicians. Publishing a monthly magazine on the web with problem sets, children's solutions to previous months problems, games, and news of events.
• Numeracy - Those interested and involved in adult mathematical literacy may find helpful input at the numeracy discussion list.
• NYC Honest Open Logical Decisions (HOLD) on Mathematics Education Reform - Organization concerned with math instruction in New York City schools. Includes extensive news, advice to parents, and other information about curriculum, trends, and issues.
• Online Math Applications - Free stock market game to learn how the market works. Using real time data from Wall street.
• Ordinary Mathematics - Covers forms, numbers and functions. Introduces high school students to basic to advanced math principles and reasoning.
• Piguy's Math Page - This page has dozens of math calculators, making all sorts of math, from algebra to arithmetic to geometry, easier. Also, 50,000 decimals of pi and a logarithm table.
• The Precalculus Algebra TI-83 Tutorial - Includes lessons for using the TI-83 graphing calculator in a college algebra or precalculus algebra course.
• Pre-Sessional Maths - Refresher programme at Loughborough University.
• Primary Arithmetic, or Math - Four booklets that one can easily copy: one of math games for ages 4-8, two about teaching early math, and one that is more general. Some worksheets, number charts.
• Problem of the Week - Creative and challenging math problems appropriate for high school students, updated often (usually weekly). Questions are archived.
• Project Links - Contains modules for probability and statistics, discreet math, linear systems and advanced calculus. Developed by the Rensselaer Polytechnic Institute.
• Ptolemy's Ptools - Using tools of yesterday, and tools specially created for this site, Ptolemy Ptools will give you geometry projects to do with your 3D computer games as well as projects to take outside and explore the world.
• QELP Web Site - Quantitative Environmental Learning Project (QELP) at Seattle Central Community College. Resources to integrate math and environmental science in college classrooms.
• Reaching the Second Tier: Learning and Teaching Styles in College Education - Discusses the study conducted by Sheila Tobias about two groups of science students that are separated by personal math class experience. Also, explains ways to discover a student's strong point as far as assimilating and processing knowledge.
• Richard Bowles' Math Tutorials - Learn about integers, positive and negative numbers, ratios, finding average values, statistical formulas, probability, simultaneous equations, quadratic functions and the binomial distribution.
• SimCalc Project - Proposes a democritization of the learning of calculus through a combination of technology and curriculum reform. Main focus is to make basic concepts accessible to a variety of students by using a more intuitive approach. Includes information about current school projects. Also, lists online publications (in PDF format).
• Simply Number Sense - A site dedicated to teaching basic mathematics and how to solve mathematical problems without reliance on the calculator
• Slates, Sliderules and Software - Teaching Math in America - Covers the use of chalk boards, geometrical models, rulers, and, calculators and computers to assist the teaching of mathematical concepts. Explains the overseas influence in education and America's additional contribution to the use of these tools. Article is from the Smithsonian Institute.
• Solid Gold Gnarly Math - Aims at getting kids age 10-14 interested in mathematics. Reviews math books, Internet links, and software products. Offers a free newsletter and sample downloads. For parents, teachers, homeschoolers, and other adults, too.
• Solve It Math Program - Problem solving program for grades 4th through 8th.
• S.O.S. Math - Contains tutorials covering algebra, geometry, calculus, differential equations, matrices, and complex variables. Reviews the most important results, techniques and formulas. Presented in worksheet format and require active participation. Includes practice quizzes and forum board.
• 21st Century Problem Solving - Sound problem solving concepts and examples that apply to grade school through graduate school and beyond.
• Steve's Math Page - Dedicated to students who need help with their math courses. It contains a brief description of each branch of mathematics.
• The STIMULUS Project - STIMULUS - peer assisted learning (PAL) through visits to schools. University students visit schools to share with school students their enthusiasm for science, engineering, computers, mathematics or medical sciences and, guided by experienced teachers, to assist the pupils in their school work.
• The Student Support Centre (UK) Ltd - Home based learning materials to supplement classroom work using Maths and English videos for ages 5-18. With over 40,000 students the results speak for themselves.
• Study Skills Online - An electronic guide to some of the best ways to study by Martin Greenhow, Brunel University.
• Teachers' Lab - Patterns in Mathematics - Teachers explore how patterns occur in numbers and in words in this interactive lab.
• Teaching Innovations - A collection of case studies illustrating some innovative practices currently taking place in Higher Education Mathematics Departments across the United Kingdom. Ken Houston (Staff and Educational Development Association).
• Topics in High School Mathematics - Several topics in high school mathematics presented so as to engage interest of students. Includes description of slide rule to find missing side of right triangle and method of calculating times for Earth to rotate and for the moon to revolve around Earth.
• Vectors by the University of Guelph - Explanations notations, arithmetic operations, rules and the relationship to Cartesian graphs.
• Visual Mathematics - Visual Mathematics is a forum for the dialogue between artists and scientists.
• Web-Based Math Resources for the College Student - There is a large and rapidly growing body of material on the web that may be of use to the mathematics student. Here are the authors' choices for best of those sites.
• What is a Power of Ten? - Visual lesson on orders of magnitude (distances in this case), from a perspective of 10E-15 meters to 10E26 meters.
• The Wonders of Vedic Mathematics - An alternative way of learning mathematics based on Sanskrit religious texts.
• Xocxoc - Glossary of mathematical mistakes; quotes; puzzles and problems; links.