 100s and 1000s  Horsham Primary School; WimmeraNet
An Internet project from Horsham, Victoria, Australia. Activities about 100s and 1000s, a Wimmera Global Classroom project coordinated by Ian Clough at Horsham 298 to recognize the beginning and end of a century and a millennium. Contributions are added
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 100th Day of School Celebration  Loogootee Community Schools, Loogootee, Indiana
A collection of interactive and other suggested classroom activities for celebrating the 100th day of school, for kids ages 814. A 100 EMail Messages Project invites your class to exchange email worldwide, linking geography and language arts with a
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 The 101questions Blog  Dan Meyer
A blog "to perplex my students, to put them in a position to wonder a question so intensely they'll commit to the hard work of getting an answer, whether that's through modeling, experimenting, reading, taking notes, or listening to an explanation." Look
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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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 42eXplore  Annette Lamb and Larry Johnson
Web projects that offer definitions, activities, four good starting points, and many more links and resources for thematic topics such as charts and graphs; codes, ciphers and secret messages; fractals, tessellations, geometric shapes, and figures; number
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 Academic Employment Network (AEN)  Career Network Associates
AEN lists available positions in colleges, primary and secondary educational institutions for faculty, staff, and administrative professionals, striving to bring you the most comprehensive listing of educational positions available throughout North America.
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 Academic Torrents  Cohen, Joseph; and Lo, Henry
This distributed data repository made for researchers, by researchers, uses bittorrent technology to facilitate the storage and sharing of research data — from NASA's map of Mars, to bags of words, to NOAA weather data. Browse datasets, papers,
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 Activating EnergyNet (Handbook of Engaged Learning Projects)  Bonnie Kuhrt; Carl Sandburg Junior High School, Rolling Meadows, IL
Junior high students design resources for other students involved in the EnergyNet data collection and interventions project and create Web pages for a district energy program. Site contains a summary, scenario, student pages, and useful Internet links,
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 AdventureOnline.com  Learning Outfitters, Inc.
Interdisciplinary curricula that use the Web to connect students to expeditions from around the world, creating motivating, realtime materials for K12 classrooms. Thematic content includes traditional and online lessons, games, quizzes, research stations,
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 The Air Force Collaboratory  U.S. Air Force
The Collaboratory poses military challenges for students to tackle with a community of peers — and alongside real Airmen. Experience science, technology, engineering and mathematics (STEM) in action with projects such as "Search and Rescue 2.0,"
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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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 Al Zimmermann's Programming Contests  Al Zimmermann
An "arena where demented computer programmers compete for glory and for some cool prizes." Computationally intensive problems, often involving heuristics, have included "Point Packing," "Retaining Water" (based on magic squares), "Son of Darts," "Topswops"
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 APlusStudent Online Learning
Interactive math lessons with graphics, animation, and audio, based on Micromedia Flash technology. Teacherdesigned, standardsbased lessons. Parents can monitor the progress of their children. There is also homework help and an online gallery where
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 ArcLessons  Environmental Systems Research Institute, Inc. (ESRI)
Lessons for using geographic information systems (GIS) in the classroom include X and Y Coordinates Rule the Map, Investigating Temperature Extremes in the USA, Baseball Radio Station Analysis, The Dust Bowl, The Great Migration, Japanese American Internment,
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 Balanced Assessment in Mathematics  The Concord Consortium
From 1993 to 2003, the Balanced Assessment in Mathematics Program existed at the Harvard Graduate School of Education. The project group developed a large collection of innovative mathematics assessment tasks for grades K to 12, and trained teachers to
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 ÜberFan  UberFan, LLC
"The fan's electronic baseball card," UberFan.com gives each fan ownership of Major League Baseball statistics by collecting them from the games he or she watches. Satisfy your curiosity for how many home runs you've seen your favorite batter hit, for
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 BestWebQuests.com/  Tom March
Tom March has designed and assessed WebQuests since 1995. He presents these top ten choices on the subject of mathematics: For the Love of the Game; Franchise; A Creative Encounter of the Numerical Kind; The Dilemma of the Dangerous Meat Loaf; The King
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 bitplayer  Brian Hayes
In Hayes' weblog, the author of the American Scientist Computing Science column elaborates on those articles, posts errata, records notes from conferences in progress, and explores other topics. The blog dates back to January, 2006, and includes articles
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 Boil, Boil, Toil and Trouble: The International Boiling Point Project  Center for Improved Engineering and Science Education (CIESE)
People from all over the world boil water at different elevations and post data to discover which factor in the experiment (room temperature, elevation, volume of water, or heating device) has the greatest influence on boiling point. Anyone can boil water,
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 A Brilliant Madness: The story of Nobel Prize winning mathematician John Nash  PBS
"The story of a mathematical genius whose career was cut short by a descent into madness." Read a synopsis of the documentary, the film's transcript, primary sources such as John Nash's dissertation, his Nobel autobiography, and more. Based on the documentary,
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 Calculus Resources OnLine (Mathematics Archives)  University of Tennessee, Knoxville (UTK)
Links to resources on the Web for calculus projects, software vendors, publisher sites, articles and discussions, listings of other calculus resources.
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 Cantor's Attic  Hamkins, Joel David; and Gitman, Victoria
This "home of large cardinal concepts online" offers a complete account of all the various concepts of infinity in mathematics, particularly a detailed account of the concepts of infinity arising in the large cardinal hierarchy. The wiki includes an
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 Cast Your Vote! What's Your Opinion On Polling?  Annenberg Media
An exhibit that explores wellknown statistical concepts  random sampling, margin of error, and confidence  through activities where YOU play the pollster. Also included is a wealth of links to Web sites related to statistics. The exhibit is part of
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 CEISMC (Center for Education Integrating Science, Mathematics and Computing)  Georgia Institute of Technology
CEISMC includes the Virtual Institute, which introduces teachers to technology, connects them to the Internet, encourages collaboration, and provides training and resources; and other programs for students and teachers covering: mentoring; career awareness;
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 Challenges  RSA Security
Read about three cryptographic challenges: RSA Factoring Challenge, SecretKey Challenge, and DES Challenge III. For the solution of these cryptographic challenges, RSA offers cash prizes as "... modest rewards for some of the hard work that goes into
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 Chips A Tally  Bayonne, NJ Board of Education  5th Grade Teachers
A collaborative math project to determine whether the number of chocolate chips in Chips Ahoy cookies is the same everywhere. Classes may submit data, and results will be posted November 30, 2000. Site includes: lesson plans that use statistics to analyze
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 CIESE Online Classroom Projects  Stevens Institute of Technology
Projects that use realtime data available from the Internet, and collaborative projects that use the Internet's potential to reach peers and experts around the world. The site lists currently sponsored projects by level, with an archive of past sponsored
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 CK12
Providers of free, standardsaligned, open content in the STEM subjects. See, in particular, the CK12 Foundation's flexbooks: customizable, free, curriculumaligned K12 math textbooks. In addition to dozens of student editions, some math flexbooks feature
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 Class2Class  Melanie Sprouse
Class2Class is a clearinghouse designed to facilitate student and class participation in Internet projects, including collaborative projects, datacollecting experiments, peer tutoring, and keypal exchanges designed to enhance the mathematics in your
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 class.com  Class.com, Inc
Class.com provides distance education over the Internet, and offers a complete high school diploma from a fully accredited, universitybased independent study high school. Math course listings include a math skill review, basic mathematics, beginning
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 Classification of Patterns  BrownHerbst, Donnelly, Stratton, AndersonNielsen; The Geometry Center
Materials about symmetry and classification of repeating patterns for students in grades 710 using wallpaper patterns, to be used as either an introduction or a review: a classroomready source of information. A final project created for Math 5337, Technology
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 Classroom Projects  TEAMS Distance Learning, Los Angeles County Office of Education (LACOE)
A site for teachers looking for a content area project or contest for the classroom. Join a TEAMS project or browse a list of projects and contests sponsored by other organizations. Extensive list of upcoming, current, ongoing, and completed projects
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 ClassZone  McDougal Littell, Publishers
In ClassZone, McDougal Littell has gathered together all of its activities, interactive online resources, research links, chapter quizzes, and other materials that support its popular middle and high school mathematics textbooks, such as Integrated Math
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 Coin Flip for Ben Franklin's 300th Birthday  The Franklin Institute
The Franklin Institute Online invites students around the world to help commemorate Ben Franklin's 300th birthday on January 17, 2006, by participating in a common scientific enterprise. Links on the page include: Practice Worksheet (in PDF format), Results
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 Coin Flipping  Ken White
A page that allows you to gather data on virtual coinflipping experiments. Includes access to data on past coin flipping and an article about coin flipping.
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 CommonsMath: The Jakarta Mathematics Library  Phil Steitz, The Apache Software Foundation
Commons Math is an open source Java library of lightweight, selfcontained
mathematics and statistics components. Download releases; post to the wiki; read the users guide and project documentation.
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 Concurrency Points in a Triangle  Brakalova, Johnson, Scalzitti, Thornberry; The Geometry Center
An interactive Webbased exploration designed to facilitate the teaching of triangle concurrency, both as an integral part of a geometry curriculum and as enrichment material. These pages can be used by individual students as a computer exploration, as
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 Connecting Mathematics to Our Lives  De Orilla a Orilla
Through bilingual discussions online, sister class partnerships, global data gathering, and other classroom collaborations at a distance, students explore how math is used in their families and communities; use math skills to investigate community or
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 Connexions  Rice University
Connexions is a nonprofit startup launched at Rice University in 1999 that aims to reinvent how we write, edit, publish, and use textbooks and other learning materials. It is a global repository of educational content that can be described in four words
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 Continuing Studies and Corporate Education  University of Massachusetts Lowell
The UMass Dartmouth and UMass Lowell Divisions of Continuing Education offer a selection of standard, fullcredit university courses offered over the web. Students and faculty use the World Wide Web, email, chat and other Internet resources to review
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 Count On  Department for Education and Employment, UK
Activities and resources  some simple and some fancy  for parents, teachers, and students. Resources offers, among other things, guides: to mathematical misconceptions; for parents helping with homework; for promoters of math fairs; and for providers
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 A Creative Encounter of the Numerical Kind: A Webquest for Middle Grades Math Students  Alice Gabbard
Students create their own numerals and base four number system for an alien civilization. This web quest features background and evaluation materials, links to state and national standards, and tips for teachers.
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 The Curious Creative: Maths  Tom Barrett
Blog by a former teacher and ICT Subject Leader. Barrett's math posts, which date to back to July, 2006, have included "Addressing the Balance: Multiflyer Times Tables Challenge," "Using Nintendo Wii Sports for Addition and Subtraction," "My Maths Lesson
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 CYBERCHASE Online  Educational Broadcasting Corporation (PBS.org)
Companion site to CYBERCHASE, PBS's animated math adventure series, intended to foster math literacy and problemsolving skills for kids ages 811. Play interactive games or practice with tools such as the talking calculator, crack challenging puzzles,
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 CyberStat  Rick Thomas
An introductory statistics course for high school students who would like to get a background in basic statistical concepts and learn to apply them in a variety of curricular and vocational fields. The course will also prepare you to take the new AP Statistics
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 Data Analysis Project: Honors Functions, Trigonometry, and Statistics  Harley, Hasskamp, O'Neil, Kent School
Projects by students of Nils Ahbel at the Kent School in Connecticut. Using UCSMP's "Functions, Trigonometry and Statistics" textbook, students learned how to do a statistical analysis and communicate the results, finding information and data on the Internet.
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 The Data Library  Pat Daley
Ongoing datasharing projects, downloadable Excel spreadsheets, and other sources of data on the Web. Collaborative Projects  specific data collection projects that teachers and their students may become a part of; Data Sets that can be downloaded as
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 A Day at the Office (Global Citizen Project)  Georgia Perimeter College
Your new boss assigns you to get on the Internet and find out as much as you can about data mining  who's doing it, why are they doing it, what benefits could the company receive if we did it, what software is available and the cost of the software,
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 Demos with Positive Impact  David R. Hill and Lila F. Roberts
Demos with Positive Impact organizes effective math teaching tools. Submit your own demo, or browse the existing collection of physical demos, calculator demos, databased demos, browserbased demos, and software demos, each with statements of objectives,
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 Department of Mathematics and Computer Science  North Carolina School of Science and Mathematics (NCSSM)
Learning materials for teachers and students include resources on algebra, advanced functions, and mathematical modeling; data sets used with the NCSSM textbook Contemporary Precalculus Through Applications; the AP Calculus Web Center; and Mathematics
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