 Tarrou's Chalk Talk  Rob Tarrou
Hundreds of instructional videos, most less than thirty minutes long: geometry, matrices, factoring polynomials, trigonometry, precalculus, calculus, AP Statistics, TINspire calculators, and more. Tarrou, who has taught math at St. Petersburg (FL) High
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 A Taste for M&Ms  Ivars Peterson (MathLand)
The package of M&M's chocolate candies (plain) I had just opened contained 56 colorful, little oblate spheroids. It was obvious from a quick glance that certain colors were more common than others in this sample of M&M's. I counted up each color
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 Taylor & Francis Mathematics Journals  Taylor & Francis Group
A list of the mathematics journals published by Taylor & Francis Ltd.
including links to the home page of each journal on the Taylor & Francis Web site. Journals listed: Applied Mathematical Finance; Linear and Multilinear Algebra; Applicable
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 Teacher Exchange  the Math Forum
Web units, lessons, and activities organized by NCTM Standards and grade band level. Created by Math Forum staff members, educators, and collaborations between the two. Teachers may contribute their own lessons and ideas as well.
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 Teacher Vision: Printables: Misleading Graphs  Scott ForesmanAddison Wesley; The Learning Network
Printable worksheet introducing students to some of the ways graphs can be misleading. PDF format.
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 Teaching Contemporary Mathematics Conference  North Carolina School of Science and Mathematics (NCSSM)
Papers and talks presented at the conference. Download PDF files of Geometry and Programming: The Forgotten and the Avoided; Student Investigations in Algebra 2 and Precalculus; The Mantid: An Extended Data Problem; Errors and Power in Significance Tests;
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 Teaching Introductory Statistics in the Social Sciences and Engineering (Mathematics Across the Curriculum)  Dartmouth College
A course that brings together faculty from many different departments who collaborate to produce instructional modules that can be used interchangeably in different introductory courses in statistics, and which integrate the most current technology available
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 Teaching Mathematics  Daniel Pearcy
Pearcy has used this blog, subtitled "Questions, Ideas and Reflections on the Teaching of Mathematics," as a "journal of ideas, lessons, resources and reflections." Posts, which date back to October, 2011, have included "New Sunflower Applet: Fibonacci
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 Teaching Statistics  The Teaching Statistics Trust
A journal published three times a year for teachers of pupils aged 919. Includes articles on teaching statistics in mathematics, science, etc. and ideas and resources for teaching datahandling and probability. Regular features include: Classroom Notes;
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 teachmathematics.net  Noble, Jim; Wade, Richard; and Bowles, Oliver
Collections of activities, movies, virtual manipulatives, presentations, simulations, screencasts, and other resources for math "lessons to look forward to." See also the mathematical experience, a discussion in response to the question "What makes a
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 Temperatures (MSTE)  John Meseke; University of Illinois at UrbanaChampaign (UIUC)
Using current weather data to calculate range, mean, variance, and standard deviation of certain data sets, and then analyzing these calculations.
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 Testing Applets  Philippe B. Laval, Kennesaw State University
Applets categorized into regression, linear functions, quadratic functions, exponential functions, trigonometric functions, differentiation, integration, and graphing and other applets.
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 Tágoras  Luis Roche
Colección de ejercicios de matemáticas resueltos con detalle de principio a fin para alumnos y alumnas de Secundaria, Bachillerato y Ciclos. Temas incluyen derivadas, estadística, inecuaciones, límite de funciones, operaciones,
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 ThatQuiz  Andrew Lyczak
Practice integer and fraction arithmetic, inequalities, averages, exponents, factors, algebra, calculus, shapes, probability, place value, graphs, sets, trigonometry, and more. The site times and scores performance. Register for online administration
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 Theatrix (SWMC)
Sanctuary Woods Multimedia Corporation has joined with Theatrix Interactive to provide educational digital media experiences for kids. Currently offers Shockwave games, CDRom educational programs, and contests. CDRoms work with both Windows and Macs;
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 themathlab.com
Playful, interactive studentmade problems, games, drills, lesson ideas, tools, "magic," and more. Lessons include practice problems which, when solved correctly, generate passwords that grant access to "treasure rooms." Lesson ideas include Algebachee
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 Theoretical Statistics  Peter Guttorp, University of Washington
A course intended for Ph.D. students in Statistics, Biostatistics, and other quantitative fields. Syllabus, handouts, research projects, homework problems.
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 Thinking Mathematics!  James Tanton
Tanton writes wordless volumes of creative and surprising math puzzles, accessible approaches to calculus suitable for standardized test preparation, and curriculum "tidbits." Download his free guides to fractions and "to everything quadratic," and watch
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 ThinkQuest
An international contest designed to encourage students from different schools and different backgrounds to work together in teams toward creating valuable educational tools on the Internet while enhancing their ability to communicate and cooperate in
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 TI83 / TI84 Games and Programs  Bill Paetzke
Bill Paetzke offers TI83/TI84 Plus programs to help students and teachers be more efficient in using their calculators. The programs are organized under these categories: Algebra, Finance, Geometry, Physics, Programs, Statistics, Trigonometry, and Tutorials.
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 TI Math  Texas Instruments, Inc. (TI)
Activities (by subject and technology type), events, research, professional development, and resources, for the high school crowd and beyond.
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 TimeCritical Decision Making for Economics and Finance  Prof. Hossein Arsham; University of Baltimore
This site is intended to help students learn and manage the uncertainty by
using effective forecasting techniques.
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 The TIME Project (Technology in Math Education)  Harding University
At this website, middle level and secondary mathematics teachers can locate lesson plans, activities, and a list of websites that can serve as resources for mathematics teachers and learners.
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 Time Series Analysis and Forecasting; AUTOBOX  Automatic Forecasting Systems (AFS) Corporation
Autobox for Windows provides forecasting based on the BoxJenkins modelbuilding process, implemented for both ARIMA (univariate) modeling and Transfer Function (multivariate or regression) modeling. Features, prices, faqs, support, and mathematical information
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 TinkerPlots™ Workshop Guide  Key Curriculum Press
TinkerPlots is software for dynamic data exploration and analysis which has been fieldtested with math classes grades 48. The free 72 page guide is meant to be used in a workshop setting, where participants can work together and a workshop leader can
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 THE TITANIC: What Can Numbers Tell Us About Her Fatal Voyage?  Todd Atkins, Barbara McManus; Louisiana State University
What do you know about the Titanic, its passengers, and its crew? This Webquest, designed for students who have some familiarity with the use of spreadsheets for creating tables and graphs and with the use of databases for gathering information, explores
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 Tom Snyder Productions
Software for teachers who love to teach. Company information, free demos, catalog; free CD sampler; product descriptions, online classroom activities, professional development (including public seminars and onsite workshops), Technology Newsletter, and
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 Tools for Understanding  John Woodward; University of Puget Sound
A resource guide for extending mathematical understanding in secondary schools, for educators who teach mathematics and are interested in integrating common
technologies into their daily instruction. Onsite strands (Math Concepts with lessons related
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 Topics in Probability  Wlodzimierz Bryc
Books in DVI, PS and HTML formats: Normal Distribution: characterizations with applications; Applied Probability & Stochastic Processes; Large Deviations: Performance analysis.
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 Transmath  A CBL Mathematics Tutor  Joanna Brown
Transmath is a computerbased (Windows platform) mathematics tutor designed to strengthen and consolidate the basic mathematical knowledge of students commencing numerate degrees. Module exercises, featuring animations, come with constructive interactive
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 Tricks for Learning Math  Math Forum, Teacher2Teacher FAQ
Answers to a frequently asked question: What are some math tricks and mnemonic devices I can use with my students?
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 Triogram Models  Hansen, Kooperberg, Sardy
An electronic version of a paper that introduces the Triogram method for function estimation using piecewise linear, bivariate splines based on an adaptively constructed triangulation. Java applets are included and a PostScript version of the entire paper
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 Troublesome Weather Trends  Ivars Peterson (MathTrek)
In the February Bulletin of the American Meteorological Society, Statistician Kevin J. Coakley of the National Institute of Standards and Technology in
Boulder, Colo. argues that ... daily temperatures don’t vary randomly. They generally tend to rise
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 Trouble with WildCard Poker  Ivars Peterson (MathLand)
Poker originated in the Louisiana territory around the year 1800. Ever since, this addictive card game has occupied the time and teased the minds of generations of gamblers. It has also attracted the attention of mathematicians and statisticians. The
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 TSM4: 'Using the Internet for Mathematics'  Oundle School, Peterborough, UK
A oneday conference for teachers held 11 May 1998 at Oundle School, Peterborough, UK. Technology for Secondary and College Mathematics (TSM) is a teacher training initiative based at Oundle School. Online Workshops: "How to download text and images off
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 Tutor Pace  Tutorpace Inc.
Online homework help tutoring. Free math resources include descriptions of and primers for prealgebra, algebra, geometry, trigonometry, statistics, and calculus.
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 TutorTeddy.com
Online tutoring sessions across grades in arithmetic, algebra, statistics, probability, calculus, geometry, and trigonometry. The TutorTeddy.com site also freely offers more than a hundred chalkboard video lectures and worked problems.
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 TutorVista  TutorVista.com
Interactive lessons, worksheets, and homework help for math students grades 312 from this online education company.
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 UCLA Statistics Homepage
Departmental info; paid or free consulting, tutoring; statistics preprints; theses and dissertations; UCLA statistics calculators; Journal of Statistical Software; UCLA electronic textbook; case studies and data sets; Center for Teaching Statistics; UCLAStat
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 UCLA Statistics Series: Preprints  Dept. of Statistics, University of California at Los Angeles (UCLA)
Papers on statistics that have been or will be submitted for publication.
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 The UK National Lottery  MerseyWorld
Using real data allows due emphasis to be given to the context and so may encourage crosscurricular links. The UK lottery site has links to many pages with varied statistical information about winning ticket numbers and prizes (see Lottery Links).
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 UltimaCalc: the Ultimate Algebraic Graphing Calculator  Anand Shraddhan
An algebraic graphing calculator for Windows that plots functions, creates charts, and calculates and displays various forms of regression. Also calculates standard deviation and related statistics, solves triangles, and finds roots of polynomials.
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 Uncovering Mathematics with Manipulatives and Calculators  Texas Instruments, Inc.
A text that provides K6 activities emphasizing problem solving, reasoning, communications, and connections, clustered into four content strands: number sense; patterns, relations, and functions; measurement and geometry; and probability and statistics.
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 The University of Chicago School Mathematics Program (UCSMP)
A K12 curriculum begun in 1983, with educational materials designed to bring the real world into the classroom, emphasizing reading, problemsolving, everyday applications, and the use of calculators, computers, and other technologies. Unnecessary repetition
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 Unizor  Zor Shekhtman
Whiteboard lectures for teenagers on algebra, trigonometry, vectors, matrices, combinatorics, probability, and statistics. Sign in for structured study, assignment functions, and more.
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 U.S. Census Bureau
Information (searchable by keyword and browseable by subject) from summary data files across cities, towns, counties, states, and other geographic and demographic boundaries, useful for many purposes from allocating representation in legislative bodies
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 U.S. Energy Information Administration (EIA)
Links to facts/statistics on energy topics from A to Z: acid rain and air conditioning to world energy data on coal consumption, electricity prices, natural gas and oil consumption, and more. With tables, graphs, articles (some in PDF format), a Windows
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 U.S. Geological Survey  U.S. Department of the Interior
Scientific factfinding and research organization of the U.S. Dept. of the Interior; the principal source of scientific and technical expertise in the earth sciences within the U.S. Federal Government. Includes The Learning Web, where Teacher Developed
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 Using Algebra and Discrete Mathematics to Investigate Population Changes in a Trout Pond (iMath Investigations)  Illuminations; National Council of Teachers of Mathematics (NCTM)
An online, interactive, multimedia math investigation that illustrates the use of iteration, recursion, and algebra to model and analyze a changing fish population. Graphs, equations, tables, and technological tools are used to investigate the effect
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 U.S. Olympic PBS Cyber School  IBM
Built around the 1998 Olympics in Nagano, Japan, the PBS Cyber School uses downhill skiing, snowboarding, and figureskating to offer problemsolving challenges for middle school students, who are invited to build their own site using the IBM HomePage
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