 The Institute of Technology Center for Educational Programs (ITCEP)  Regents of the University of Minnesota
ITCEP develops and administers educational programs in mathematics and its related science and engineering applications for precollege, undergraduate and graduate students, and for K12 preservice/inservice teachers. For children, ITCEP administers the
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 Institut Pengembangan Pendidikan Matematika Realistik Indonesia
Indonesian implementation and dissemination of Pendidikan Matematika Realistik Indonesia (PMRI), the Dutchinspired Realistic Mathematics Education (RME). Blog posts  a few in English, most in Indonesian  date back to August, 2009.
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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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 Instructional Resources  Microsoft Corporation
Microsoft's instructional resources are divided into lesson plans (math), howto articles, and tutorials. You may search each section's resources by age group, Microsoft product, theme or learning area. See also the Design Gallery Live.
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 InstructorWeb: Teaching Tools, Lesson Plans, Worksheets  Instructor WEB and Money Instructor
Lesson plans, worksheets, interactive lessons. Download or make your own worksheets. For teaching and learning basic skills including telling time, basic math, calendars, classifying, counting, recognition, money, reading, writing, and more skills. Limited
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 Integers, Rational/Irrational Numbers  Math Forum, Ask Dr. Math FAQ
What is an integer? Are fractions rational numbers? What about .9999...? How about decimals? pi? the Golden Ratio?
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 Integrating Mathematics and Methods  Beal, Klespis; Math Forum
An integrated mathematics content and methods course taught at St. Xavier University for preservice elementary school teachers. Integration is accomplished by presenting the material in a problemsolving format in a laboratory context, with students working
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 Integrating Productivity Tools in Primary and Secondary Education  James L. Morrison; Horizon
Articles, some still in draft form, describing how teachers have integrated technology into their instruction.
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 Integrating the Internet  Susan Hixson
Primary resources, projects, a weekly newsletter, units of study, and "Internet in the Classroom," a tutorial to help in planning projects and class homepages. Includes links to an annotated list of primary resources for mathematics, and a page of links
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 Intel Schools of Distinction  Intel Corporation
Every year, Intel honors U.S. schools that demonstrate 21st century teaching and learning environments that promote excellence in math and science with the Intel Schools of Distinction awards. To be considered, schools must develop an environment and
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 Interactions  Center for Media Education
Linked profiles of people and research projects investigating the way new technologies affect child development, and searching for technology that affects development in a positive manner. Links are divided into four categories: Create, Learn, Play,
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 Interactivate: Assessments  Shodor Education Foundation, Inc.
A set of Shodor's Interactivate activities that allow the user to keep track of correct responses. To use these activities as "assessments" just select the "Keep Score" button on the Java applet page. A number of these activities, the Connect Four type
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 Interactive Games  Cathleen J. Chamberlain and Mark Cogan, Oswego City School District
Design matching games and quizzes. Premade games include Ghost Blasters and Sum Sense, for practicing arithmetic; Banana Hunt, for estimating angle measures; Bang on Time, Class Clock, and Stop the Clock; Billy Bug, for learning coordinates; Fraction
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 Interactive Geometry Classroom Resources  CIGS, Math Forum
Links to downloads and classroom resources for dynamic geometry programs: the Geometer's Sketchpad; Cabri Geometry; Cinderellas Café (Java geometry software  German); Dr Geo (multilingual software for IBM PC); Euklid (Windows shareware in German
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 Interactive Learning (Learning and Mathematics)  Brown, et al.; Math Forum
In a chapter entitled "Interactive learning and individual understanding: The case of reading and mathematics" in the 1991 book, Culture, schooling, and psychological development,  Brown, Campione, Reeve, Ferrara & Palincsar discuss learning in which
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 The Interactive Mathematics Classroom  Rex Boggs
A digital library of thirdparty technology resources for teaching mathematics, from kindergarten to calculus. Register to comment on interactive whiteboard files, Powerpoints, TINspire documents, Excel spreadsheets, and other digital resources. RSS
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 InteractiveMathTutor.com  Howard Heller
Fee services include oneonone tutoring, email helper, phone helper, and homework helper. Register for free worksheets and solutions. Math subjects include elementary math, algebra, geometry, trigonometry, integrated math, calculus, statistics, and
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 Interactive Units Converter  Sergey & Anna Gershteins
Measurements available for conversions: weight and mass; distance and length; capacity and volume; area; speed; temperature; time; pressure; energy, work, torque; power; circular measure, and computer storage. With links to other converters.
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 Interdisciplinary Mathematics  Mathematics Education at the Math Forum
The NCTM Standards make a strong case for connecting mathematics with other disciplines, the National Science Foundation (NSF) has funded many projects and curricula with strong interdisciplinary commitments, and mathematicians are more and more seeking
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 The InterFACE: Internet Fractal and Chaos Education  ThinkQuest 1997
Lessons, games, activities, demonstrations, and software, to inform users of the science and mathematics behind fractal images and chaos theory. The lessons, identified by subject and level of difficulty and including quizzes, are designed to promote
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 International Group for the Psychology of Mathematics Education  Psychology of Mathematics Education (PME)
The International Group for the Psychology of Mathematics Education is a group of researchers dedicated to promoting international contacts and the exchange of scientific information in the psychology of mathematics education; promoting and stimulating
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 International Mathematical Virtual Institute  DMBL (Scientific Society of Mathematicians Banja Luka)
The International Mathematical Virtual Institute (IMVI) promotes communication, cooperation and collaboration in the Balkans, elsewhere in Europe, and worldwide on research in (pure and applied) mathematics, history and philosophy of mathematics, and
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 The International Mathematics Teacher and Educator Network
The International Mathematics Teacher and Educator Network (IMTEN) "aims to bring together all those involved in mathematics education across the world.... by hosting and stimulating debates and discusssions, articles and blogs, and being a repository
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 International Salary Income & Expenditure Database  Bernard Parent, World Salaries Group
The International Salary Income & Expenditure Database provides an
international comparison of average salary for various professions and an
international comparison of average personal income & expenditure.
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 International Society for Technology in Education (ISTE)
ISTE promotes appropriate uses of technology to support and improve teaching and learning. The site includes an online bookstore, membership information, publications, conference info, training opportunities/workshops, resources, projects, and bulletins.
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 International Technology Education Association (ITEA)
The professional organization of technology teachers. Its mission is to promote technological literacy by supporting the teaching of technology and strengthening the profession through leadership, professional development, membership services, publications
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 International Telementor Program  Colorado Nonprofit Development Center
Students and mentors from ITP sponsors collaborate in a safe and secure projectbased environment with facilitation from a teacher or parent. Teachers may submit projects throughout the year. Research on the effectiveness of the program and articles about
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 International Unit Conversion Calculator
Comprehensive unit conversion calculator with 20+ categories such as heat and temperature, pressure, volume, area, density, time, speed, velocity, force, angle, power, energy, frequency, computer, electric current, electric capacitance, currency, calendar,
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 International WWW Schools Registry  Stephen E. Collins; Web 66
Global school listings of K12 schools on the WWW, by country and by special categories: Arts; Charter; Gifted&Talented; Handicap; International; Math elementary and secondary schools and educational organizations; Montessori; OnLine; Parochial; Private;
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 Internet Computer Math Resources  Math Forum
Internet resources for integrating computers into the math classroom, one of the Math Forum's series of pages dealing with issues in math education.
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 Internet Educational Workbook (INEW)
Learning by practicing: a hard copy workbook and an online mathematics worksheet database for use both in the classroom and at home, for students in Kindergarten through grade 6. There is also an online version of the worksheets with audio instructions
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 Internet Online Summit: Focus On Children
On December 13, 1997, more than 650 participants representing over 300 organizations came together for the Internet Online Summit: Focus On Children. The Summit addressed ways to assure that steps could be taken to make the Internet online experience
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 The Internet Pizza Server  Susan Boone
A lesson on data collection, unit price, proportions, research, and area of circles. Students create their own pizzas using choices of toppings. They "order" their creations from the Internet and see digitalized versions of their pizzas. They use their
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 Internet Public Library  Mathematics Reference
A listing of sites that provide mathematical resources: the study of the measurement, properties, and relationships of quantities, using numbers and symbols.
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 Internet Resources for Science and Mathematics Education  Tom O'Haver, Maryland Collaborative for Teacher Preparation
A list of online resources for education;
mathematics,
integrated science and mathematics, other sciences, computers and technology, downloadable software, K12 school pages, multicultural connections, subject catalogs and indices, search engines,
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 Internet Use by Teachers  Teaching, Learning, and Computing (TLC)
Teaching, Learning, and Computing has issued its first newsletter report, providing data collected in spring 1998 for a nationally representative sample of more than 2,000 teachers on how they use the Internet  or don't  and what distinguishes users
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 Interventions Portfolio: Math  Peacock, Groenew; School Psychology Project, Univ. of South Dakota, SD
A place to read suggestions by teachers for helping children gain skills and concepts related to mathematics across the grades (Preschool, K2, 35, 68, 912). You may also submit your own successful strategies.
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 invention at play  Lemelson Center, Smithsonian National Museum of American History
Rotate and translate the tangramlike pieces of Puzzle Blocks to form the silhouettes shown; arrange the gears, springs, funnels, and other objects of Tinker Ball to divert the falling ball into the target. The Invention at Play exhibition focuses on
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 Inversions: A Catalog of Calligraphic Cartwheels  Scott Kim
The inversions gallery of Puzzlemaster Scott Kim, whom Isaac Asimov called "The Escher of the Alphabet." An inversion is a word or name written so that it reads in more than one way. Some inversions read upside down, some flip in a mirror. Some read as
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 Investigating LCM and GCF Using Rods  Margo Lynn Mankus
The objective of the lesson plan Investigating LCM and GCF Using Rods is to look at the Least Common Multiple (LCM) and Greatest Common Factor (GCF) from "handson" patternbuilding to using set theory. With teachers as the intended audience, the activity
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 Investigating Patterns: Symmetry and Tessellations  Jill Britton
Thirty activities from a variety of Web sites, coordinated with a forthcoming book by Jill Britton for Cuisenaire/Dale Seymour, Exploring Pattern: Symmetry and Tessellations (March 1999). Topics include an introduction to symmetry; symmetry in the alphabet,
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 Investigating Polygons  Margo Lynn Mankus
The lesson plan for What is the Sum of My Angles? has the objectives of investigating the sum of the measure of the interior angles of a triangle using several methods, and making a mathematical conjecture from observations. The lesson plan for Regular
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 Investigating Tessellations Using Activity Pattern Blocks  Suzanne Alejandre
A lesson plan with activities for investigating tessellations with pattern blocks, keyed to the NCTM Standards, and student tessellation samples. Links to a Patterns Program in which you can drag an unlimited number of standard pattern block shapes into
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 An Investigation of Subtraction Algorithms from the 18th and 19th Centuries  Nicole M. WessmanEnzinger
An exploration of different algorithms used during 18th and 19th century America, with discussion of implications for the modern teacher. This article, which originally appeared in the January 2014 issue of the Mathematical Association of America (MAA)
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 Investigations in Number, Data, and Space (TERC)  Testbed for Collaboration, Eisenhower Regional Consortia
A K5 mathematics curriculum with four major goals: to offer students meaningful mathematical problems; emphasize depth in mathematical thinking rather than superficial exposure to a series of fragmented topics; communicate mathematics content and pedagogy
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 iPracticeMath
Type in your responses to iPracticeMath's online multiplechoice questions, and press the orange "submit" button to check your answers: addition, subtraction, multiplication, division, algebra, "word to number" (interpreting writtenout quantities), and
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 I Support the Common Core  McCallum, Bill; and Zimba, Jason
Blog "for people who want to be active in support of the Common Core State Standards" (CCSS). Posts, which date back to August, 2013, have included "Cathy Kessel critiques the critiques," "A mathematician on the rigor of the Common Core," "The Coming
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 It's a Small World  Guillermo E. Pedroni, L. D. Brady Elementary School. Aurora, IL
A collaborative learning project combining email penpals with Internet research and bilingual (English/Spanish) writing projects. The site contains a project summary (with assessment rubric and list of standards addressed), scenario, student pages (find
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 I Used To Believe  Mat Connolley
A collection of childhood beliefs, such as thinking that cats are female dogs, that seeds swallowed will sprout fruit from your ears, and a primal fear of toilets. "Some of the beliefs come from overactive imaginations, but a lot are the result of parental
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 IXL Learning
IXL provides free online practice, organized by grade levels K8 and aligned to state standards. Choose one math skill from among the hundreds offered, and submit your answer. Respond incorrectly, and click on the "explanation" button to learn more; get
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