 Innumeracy
"Gathering examples of innumeracy" taken from the real world. Comment on existing images and anecdotes, or submit your own example. Posts, which date back to a January, 2016, conversation from the Math Educators Stack Exchange, have included "Falling
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 in pursuit of nerdiness
Blog by a middle grades and high school math teacher, formerly in the South Bronx, currently in the Netherlands teaching both within the Dutch national curriculum (in English) and within the International Baccalaureate Middle Years & Diploma Programs.
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 InquiCalc  Donovan Harshbarger
Use InquiCalc's 90 builtin functions to graph up to eight different plots on a single plane, customizing colors and other display parameters along the way. Save output in .BMP, .GIF, .JPG, or .PNG formats; or copy graphs from this graphing calculator
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 inQuiry Almanack  Franklin Institute
A magazine about inquirybased learning. Regular features, a surprise spotlight of the month, favorite sites, the latest in science news, what's new at The Franklin Institute, experiments, and a puzzle. Archives are online beginning in March, 1995.
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 Inquiry maths  Blair, Andrew; and Martin, Caitriona
Inquiry prompts for topics related to number, algebra, and shape to use in secondary school mathematics. Accompanying notes support teachers who "want to make their lessons more open and, thereby, encourage student independence and leadership."
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 Inside Mathematics
Classroom examples of innovative math teaching methods, insights into student learning, and instructional tools ready for immediate use. Adopt a schoolwide problemsolving theme with Inside Mathematics' Problems of the Month, each featuring video overviews,
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 The Insight Method of Teaching Math  Robert Frick
How and why to teach math via mental models, as articulated by a cognitive psychologist who describes the "learning is memory" approach as "a disaster and a tragedy." See, in particular, Frick's sample problems: reverse arithmetic, expressing patterns,
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 InSITE: The Information Network of SITE  Society for Information Technology and Teacher Education
A clearinghouse for textbased and multimedia materials related to the integration of technology into teacher education, including staff development, exploring how educators from various content areas and at various locations can collaborate over the
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 Inspirational Mathematics for Interactive Whiteboards  PowerpointMaths.com
A large collection of Powerpoint resources for the mathematics classroom, for use with electronic whiteboards, in the categories: algebra, data handling, enrichment, measures, mental maths 5000, number, and shape and space.
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 InstaCalc Online Calculator  Kalid Azad
InstaCalc is a fast, shareable and free online calculator. You can compute answers quickly and share a link to any result. Instructions and examples available on the site.
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 InstaGraphs: Adhesive Grid and Graph Papers  Calvin Leung, Clear Educational Solutions
Adhesive pads preprinted with various graphs and grids. Super economical and more educationally sound than standard graph paper. Good for relation graphing, trigs functions, graphing calculator windows, fraction arithmetic, multiplication tables...
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 Instant Math Series  France & Associates
A set of productivity tools for teachers and parents that will prepare tests or worksheets, as well as the answer keys. Useful for practice homework drills for parents who want to help their children learn math. Macintosh only. Demo available to download.
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 The Institute for Figuring  Margaret and Christine Wertheim, CoDirectors
"If mathematics is a language of pattern, its structures may be seen as the verses of a formal, yet fantastical poetics. Across the globe people have delighted in the harmonies of this language and the patterns discovered therein. These are the songs
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 Institute for Learning  University of Pittsburgh
Researchbased curriculum, tools, and professional development designed to build the capacity of teachers, administrators, and systems to provide students with high quality instruction and learning opportunities. See especially What We Know, Principles
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 Institute for Mathematics and Education  The Arizona Board of Regents
The Institute for Mathematics and Education (IM&E) supports local, national, and international projects in mathematics education that "focus on both the mathematics and the students, can be applied to current needs, build on existing knowledge, and are
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 Institute for Special Education  University of Fribourg/Switzerland
A variety of research projects in English, German, and French, including Training of cognitive strategies  a computer programme for learningdisabled children; Publications (quarterly journal, books in German).
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 Institute for the Transfer of Technology to Education (ITTE)  National School Boards Association
A program of the National School Boards Association designed to help advance the wise use of technology in public education. ITTE provides information, publications, and meeting opportunities to school and districtlevel educators who are considering
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 Institute of Consumer Financial Education  Paul Richard
Money tips and information on finances, savings, investment, and firsttime credit for young Americans, their parents, and grandparents. Articles include "18 Ways to Teach Children or Grandchildren the Value of Money," "10 Commandments of Personal Finance
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 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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 Instituto Nacional de Estadística e Informática (INEI)  Perú
El Instituto coordina las actividades estadísticas e informáticas oficiales del Perú. Notas de Prensa; Capacitación (Escuela Nacional de Estadística e Informática y Capacitación a Distancia con cursos para el Censo);
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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 Fair Group  TS Denison
The 2000 catalogue of over 4000 products. Select mathematics to search by keyword or find product groupings under: algebra; base ten; basic operations; calculus; fractions; games & game pieces; geometry; mathematics kit; measurement; numbers &
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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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 Integer Jim's Math Squad  Jim Bennett
Creative ways to use art, writing, research, and Internet projects to make math more exciting for students. The Math Squad art projects are yearlong projects; rather than "lesson oriented," they create an "adventure theme" that facilitates math instruction.
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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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 The IntegerZone  Philip Dorrell
A Java applet which presents the integers as a scrollable rectangular grid of cells, each cell displaying one number. Different modes illustrate different mathematical topics by defining the user's interaction with the grid in terms of response to mouse
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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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 Intelligent Tutor Math Educational Software, Inc.
The programs in the Intelligent Tutor software series contain tutorials designed to help students learn and master Grades 712 math subjects. The programs are designed with school versions for use in schools, and home versions for individuals in selfstudy
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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 Algebra  Robert Bunge
Java applets that allow you to practice your equations, factoring, and graphing skills, with multiple levels in each category. The applet generates random problems, which you work on paper, and you can check your answers when you're ready. Hints are also
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 Interactive Excel Spreadsheets  Scott A. Sinex, Prince George's Community College
"Excelets are interactive Excel spreadsheets or simulations of mathematical models. The user changes a variable and the spreadsheet changes in numerical, graphical, and/or even symbolic form (equations).... with no use of programming, no macros or Visual
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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 Geometry with JavaSketchPad  Bryan Dye; MathsNet
Java applets illustrate geometrical figures (circle, cuboid, equilateral, isosceles, and scalene triangles, kite, parallelogram, regular hexagon, octagon, pentagon, quadrilateral, square, rectangle, rhombus, trapezium); show what is meant by congruence,
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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 Mandelbrot Set
A Java applet that allows you to zoom in on portions of the Mandelbrot set.
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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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 Interactive Mathematics Miscellany and Puzzles  Alexander Bogomolny
"The peculiar beauty of Mathematics lies in deduction, in the dependency of one fact upon another. The less expected a dependency is, the simpler the facts on which the deduction is based  the more beautiful is the result." This awardwinning site offers
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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 Math World: MathematiX  Dalin, Inc., Israel
Windows software for examining and verifying or rejecting concepts, principles, definitions, assumptions and theorems, for middle school, high school, and college. With fully dynamic quantitative scales, interactive dynamic tools, and data for demonstrating
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 Interactive Nim  Bryan Clair, University of Chicago
The interactive Nim page. A twoplayer game  you versus the computer. On your move, you can 'take' any number of 'o's from a single row, by deleting them. You may not pass. To win, you must take the last 'o' left in the game, or equivalently leave the
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 Interactives  Annenberg Media
Interactives from Annenberg Media provides educators and students with strategies, content, and activities that can enhance and improve students' skills in math, science, history, arts, and language. Math topics include: Geometry 3D Shapes, Math in Daily
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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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 InterMath Dictionary  The University of Georgia
A searchable dictionary for middle schoollevel mathematics students, teachers, and parents. The dictionary provides related terms, everyday examples, interactive checkpoints, and challenges. Funded by the National Science Foundation, InterMath is a collaborative
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 InterMath  The University of Georgia
InterMath is a professional development effort designed to support teachers in becoming better mathematics educators. InterMath workshops provide an ongoing support community, a lesson plan database, and a discussion board. The site provides mathematical
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