 01 Programming Benchmarks with Hidden Optimum Solutions  Ke Xu
Benchmarks with different problem sizes are provided, all of which are planted with hidden optimum solutions. It is expected, based on the study of phase transitions in NPcomplete problems, that the difficulty of solving these benchmarks will grow very
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 8 Foxes
A blog in which geometry questions of different levels are posted daily.
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 Alive Books  Sotirios Persidis
The site offers a free downloadable course on Calculus of a Single Variable, as well as a link to a modern new Mathematical Handbook is given. The Handbook is part printed matter and part online, and fully searchable even within mathematical expressions.
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 AnalyticBridge  Vincent Granville
Leading analytical job board and social network. Specializing in biostatistics, statistics, quality control, econometrics, quantitative or computational finance, ETL, data warehousing, data analysis, CRM, artificial intelligence, data mining, knowledge
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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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 The Better File Cabinet  Eric Hsu
A database of nonroutine calculus problems used in college workshops for Uri Treisman's Emerging Scholars Programs. It was originally a highly searchable database of calculus problems, comments and solutions. It will eventually will be a database crossreferencing
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 BigPrimes.net  BigPrimes.net
An archive of primes, plus information on each prime, and on prime numbers in general, number systems, types of numbers, and universal constants. The number cruncher will tell you facts about numbers you submit.
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 Blog on the history of Fermat's Last Theorem and Wiles' Proof  Larry Freeman
The purpose of this blog is survey the developments of number theory in relation to Fermat's Last Theorem. I try to focus on the people, ideas, and mathematical details. It is meant to be interesting, accessible, and accurate in its mathematical details.
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 Busyness Girl Mathematics  Maria H. Andersen, Muskegon Community College
Posts on this blog about technology for math courses have discussed WolframAlpha and other websites for online instruction as well as for classroom use.
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 Calculus Ideas  Charley Hoye
A calculus course for the Web designed partly for those who have a hard time remembering 7X8, and partly for those who have finished a calculus course and are beginning to wonder what it was all about. It’s plain…no programming wizardry…an invitation
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 Career.edu: Job Board for the Academic and Research Community
Nonprofit job board for the academic and research community. Many academic positions in math, physics, and astronomy.
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 Category Theory Demonstrations  Jocelyn Paine
This is a Web page with buttons that generate examples, with diagrams, of concepts in category theory. These include: initial and terminal objects, products and coproducts, equalisers and coequalisers, pullbacks and pushouts, and limits and colimits.
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 Challenge by Choice  David Suarez and others
A classroom mathematics program that lets students choose their own level of challenge within the structure of the curriculum. His blog offers details of the program, the theoretical and practical basis of differentiated instruction, and the results he's
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 Chinese Numbers  Erik E. Peterson
Convert arabic numerals up to 1 billion into Chinese numbers, or show the value of a Chinese number (type or paste in a number in Chinese and click "Show English." With, in addition, A Brief Description of the Chinese Number System, and links to related
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 Critical Thinking Puzzles  Eldhose
Puzzles, logical thinking riddles, word problems in blog format. Comment with your solution and read others' workings.
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 DavidZiskind.Org  David Ziskind
Articles discussing variational problems, ordinary differential equations, series reversion, least squares regression, quantifiers, extrema, internal rate of return, and other mathematical topics.
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 Developing Function Sense with SAQs  Judah Schwartz
A work in progress, this is an online book on the philosophy of teaching functions in middle and high school algebra. He has come to believe "that approaching algebra through the study of functions using symbolic and graphical representations simultaneously
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 Dr Ell's Math Blog  Sarah Loft
This is a blog about ideas for teaching math concepts to very young learners. As such, the focus is on games and handson work. The author also tries to keep to the use of readily available materials that cost little or nothing to obtain.
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 Econometrics and Statistics eJournal  Istanbul University
Istanbul University Econometrics and Statistics eJournal is a refereed semiannual electronic journal which is published by Istanbul University Faculty of Economics, Department of Econometrics. The journal welcomes original Turkish and English scientific
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 Education Program for Gifted Youth (EPGY)  Stanford University Center for the Study of Language and Information (CSLI)
Multimedia computerbased courses in a variety of subjects, including mathematics and physics, for bright students of all grades, offered through the Stanford Continuing Studies Program. EPGY also researches computerbased distance learning instruction
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 Educosoft.com  Educosoftregister.com
Online mathematics teaching and learning resource. USAbased portal providing online mathematics tutoring and help for students grade 6 to 12. Aligned with CBSE, ICSE and other state boards. Contains:
electronic lecture notes (ELN) for teachers, online
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 Exploring the Shape of Space  Jeff Weeks; Key Curriculum Press
Geometry and cosmology for grades 610. Lessons and activities to accompany the computeranimated video The Shape of Space (also available on CDROM and based on Jeff Weeks' book by the same name). Each lesson includes teacher notes, blackline master
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 Formula Database  students at the University of WisconsinMadison
FormulaDatabase is a free webbased math and physics equation search engine. It is an open collaborative project like a wiki, which will allow anyone to add and edit its content.
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 Foundations of Infinitesimal Calculus  Henle and Keisler
Free download, PDF format.
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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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 Gateway to Logic  Christian Gottschall; Dept. of Philosophy, Vienna
A collection of Webbased logic programs offering a number of logical functions. Client side processing (requires Java): sparse trees, alpha graphs (Peirce), Begriffsschrift notation (Frege), Polish notation, truth tables, normal forms, miscellaneous
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 GED as Project  Virginia Commonwealth University
Inquirybased, studentcentered materials for GED students, including separate study materials for math and other disciplines. Print and video resources are available.
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 GeoGebra Wiki  Linda FahlbergStojanovska
On this Wikispaces platform, users can quickly upload GeoGebra worksheets, insert screenshot images using Jing (freeware), and post equations created with Sitmo (freeware). Resources available on the site include: GeoGebra constructions, explorations,
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 Getting Results: Free Professional Development Course for Community College Educators  WGBH Educational Foundation
The Getting Results faculty development modules are customized materials that will feature video segments illustrating exemplary practice and online resources and strategies targeted to Advanced Technology Education disciplines, making them easily available
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 Gifted LearningLinks  Center for Talent Development, Northwestern University
Gifted LearningLinks offers academically talented students in Kindergarten through Grade 12 the opportunity to take enrichment, high school honors, AP and university credit courses onlinefrom wherever they are, whenever they want, at a pace appropriate
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 Google Calculator
Google's calculator feature evaluates math expressions. The google.com and the Google Toolbar search boxes now handle queries such as: 56*78, half a cup in teaspoons, (G * mass of earth)/(radius of earth ^ 2), and 1.21 GW / 88 mph. Google provides instructions
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 Headlines & Deadlines for Students  American Mathematical Society (AMS)
The American Mathematical Society's Public Awareness Office has announced a new email notification service. Headlines & Deadlines for Students alerts subscribers about applications for fellowships, grants, meeting registrations, and other timesensitive
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 Homeschool Math Blog  Maria Miller
Math blog aimed at helping teachers and homeschoolers teach math better. Includes math history topics, news, book reviews, resource links, updates to HomeschoolMath.net site, lesson ideas and more.
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 HomeworkNow
A free online service intended to keep teachers, students, and parents connected. The service allows teachers to post homework assignments on the web; students and parents may acess assignments at any time. Schools must register and select an administrator
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 How To: Algebra
Features explanations and step by step examples of algebra topics from the high school level to college algebra.
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 IAEPedia  Information Age Education (IAE); The Science Factory
IAE, founded by Dave Moursund, is a nonprofit organization that provides free materials for preservice and inservice teachers. It focuses on improving education at all levels and throughout the world. The IAEPedia is a wiki page about its educational
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 Instructional Architect  Utah State University
The Instructional Architect software helps teachers make web pages that incorporate existing instructional resources from the National Science Digital Library and the web in general. See examples of projects created using Instructional Architect. Requires
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 Ke Xu's Benchmarks for Hard Problems  Ke Xu
All benchmarks are generated based on exact phase transitions of Model RB, including forced satisfiable benchmarks of SAT/CSP and benchmarks with hidden optimum solutions for 01 Programming and graph problems (Independent Set, Vertex Cover, Clique and
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 Labyrinth  Peter Kishalov
An online puzzle: choose the correct door to advance through the labyrinth, based on logic puzzles similar to those published by Raymond Smullyan in his book The Lady or the Tiger?.
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 Lessonopoly  Silicon Valley Education Foundation
A free tool that lets teachers manage their classrooms, find and share lesson plans, and connect with other teachers.
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 Math 2.0 Interest Group  Math 2.0 Interest Group
The Math 2.0 Interest Group is an international network of researchers, educators, families, community leaders and technology enablers. They collaborate on a variety of research and development projects and conversation threads about social media as it
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 Math Blogs  Blogged.com
The editors at Blogged.com recently rated mathematics blogs based on criteria such as frequency of updates, relevance of content, and writing style. Find blogs you'd like to follow, review them in the listings here, or add your own.
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 Math Drudge  David Bailey and Jonathan Borwein
This blog "on the nature of mathematics and of science more generally" dates back to June, 2009. Posts have included "Numeracy, relative risk and public policy,"
"The psychology of mathematics," "Fermi's Paradox and Stephen Hawking," "Yahoo! researcher
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 Mathematical Moments (AMS)  American Mathematical Society
A series of illustrated "snapshots" in the form of posters or flyers in PDF format, or audio podcasts, designed to promote appreciation and understanding of the role mathematics plays in science, nature, technology, and human culture. Freely downloadable;
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 Mathematics: Grades 6 to 8  Statistics Canada/Statistique Canada
A collection of key resources, lesson plans, and data sources which help build statistical literacy.
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 Mathematics: Grades 9 to 12  Statistics Canada/Statistique Canada
A collection of key resources, lesson plans, and data source which help build statistical literacy.
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 Mathematics: Kindergarten to Grade 5  Statistics Canada/Statistique Canada
A collection of key resources, lesson plans, and data sources which help build statistical literacy.
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 Math for Love  Daniel Finkel
Finkel brings us this blog "... about math, creativity, culture, education, and beauty. It's for everyone." Posts have focused on selfreferential humor and mathematics; older posts have included the joys of pattern blocks, an aspect of probability applied
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 Mathgrad Podcast  Christopher Frederick
One of the goals of Mathgrad Podcast is to provide a place "...to discuss the mathematics behind many real life topics in a way that even the worst mathphobe will gain some insight." Topics range from the math underlying voting schemes to the mathematics
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 Math Help  Tutoring Services, LLC
A blog with math (and math education) cartoons, and tips on common mathematical issues and how to teach mathematics.
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