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  All Sites - 2744 items found, showing 2551 to 2600

  1. Transparent Media - Transparent Media, Inc.
    Commercial software company offering shareware software for fraction exploration, as well as other free downloads and commercial products. ...more>>

  2. Triangle with one 90-degree Angle - NASA Lewis Learning Technologies Project
    A triangle with one 90 degree angle is always: an equilateral triangle; an acute triangle; an obtuse triangle; or, a right triangle? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  3. Tribute to Invariance - Cut the Knot!, Alexander Bogomolny
    As a competitive activity, the Squares and Circles game is not very challenging in itself. That is to say, the outcome of the game does not depend on how the game proceeds. The challenge is to come up with this realization and establish its veracity. ...more>>

  4. A Tribute to Miro - Kathy Sederquist, Namaste Art Center
    Students learn how contemporary artists work by doing a painting in the style of the Catalan artist Joan Miró. The basic lines in drawing, including vertical, horizontal, diagonal, and curved, are reviewed through experimentation. ...more>>

  5. 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? ...more>>

  6. Trigonometry (S.O.S. Mathematics) - Dept. of Mathematical Sciences, Univ. of Texas at El Paso
    An online course: learning units presented in worksheet format review the most important results, techniques and formulas in college and pre-college trigonometry. Trigonometry: Angle Measures, Trigonometric Functions (magic identity, Addition Formulas, ...more>>

  7. A Trillion Dollars - Jim Loy
    Illustrating large numbers: 100, 1,000, and 10,000 vertical lines; imagining a trillion. ...more>>

  8. Triumph of the Nerds: A History of the Computer - Robert X. Cringely; PBS Online
    A companion Web site for the Public Broadcasting System television special hosted by Robert Cringely, "Triumph of the Nerds: The Rise of Accidental Empires." Learn how youthful amateurs, hippies, and self-proclaimed "nerds" accidentally changed the world. ...more>>

  9. The Truth About Math Standards and Information-Age Math Reform - Bill Quirk
    An anti-reform site offering a critical analysis of the NCTM Standards and TERC math. ...more>>

  10. The Truth Tree's Math and Logic Board - Bob Scott, Ron Savori
    A collection of math and logic problems, from Pascal's Pizza Parlor and Leaning Ladders to The Old Lady and the Eggs and The Rickety Table Disaster. Register to solve these and other problems and compete with other visitors to The Truth Tree. ...more>>

  11. Tumblehome Learning
    Makers of educational products such as Lost in Tangrams and -- through a partnership with TERC, with funding from the National Science Foundation (NSF) -- Mixing in Math (MiM) cards, gameboards, and books. ...more>>

  12. TurnOnCCMath.net - Confrey, Jere, et al.
    Learning trajectories that unpack the K-8 Common Core State Standards (CCSSS) for Mathematics from the standpoint of student learning, and elaborate the underlying scientific research in mathematics education. Click on a hexagon or a trajectory for detailed ...more>>

  13. Tutor.com - Tutor.com, Inc.
    One-to-one real-time help from professional subject experts and librarians. Students looking for homework help may check if their local library or after-school center offers free tutor.com tutoring; try tutor.com personal online tutoring free for a week; ...more>>

  14. The Tutor House: math - Adrianne Meldrum
    Tutoring elementary and middle school students, Meldrum would often "hunt the Internet for tips and helps on teaching concepts to my students. I find great stuff, but I wanted somewhere central that other tutors like me could find them...." Every Wednesday ...more>>

  15. Tutorial World - Strategic Thinking Business P/L Singapore
    Provides two sample printable worksheets covering a variety of topics for pre-school and primary grades from 1 to 6. Registered users (approximately US $11.10) have access to more worksheets and also answer sheets. ...more>>

  16. TutorIT Math Skill Tutors - Intelligent Micro Systems, Ltd's (DBA Scandura)
    Adaptive tutorials that identify what a math student does and does not know -- and then provide the information needed by that student to master the skills taught. Packages include basic facts (addition, subtraction, multiplication, division), algorithms ...more>>

  17. TutorLinker: The Most Innovative Tutor Network - TutorLinker.com
    TutorLinker uses online map system so people who are looking for local tutors can easily find their location and compare with other tutors. All services are currently free. ...more>>

  18. TutorMatch - TutorMatch.com
    A tutoring referral service for educators and students. Professional and skilled tutors offer academic assistance and skills development, geared to the learning styles of their students. Tutoring options include face to face meetings or individualized ...more>>

  19. TutorNEXT - tutorNEXT, Inc.
    One-on-one, individualized tutoring sessions in math and English. An enrichment program in math, and free printable math worksheets, are also available. Full listing of services on the site. ...more>>

  20. 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. ...more>>

  21. Tutor World Online
    This online tutoring service sells homework help and SAT preparation packages. The Tutor World Online journal posts free primers in math. ...more>>

  22. tutpup
    Basic arithmetic questions for children to solve while racing against each other, anonymously, as a clock counts down. The site shows what you got right and wrong, and how your performance compares with your opponent's on each question. The games run ...more>>

  23. TuvaLabs - Tuvalabs LLC
    Common Core-aligned math learning units based on "topics, news stories, and significant events occurring in student's life outside school," such as sports and nutrition. ...more>>

  24. TuxMath - Tux4Kids
    This freely downloadable arcade game challenges students to protect the penguin's igloos by solving arithmetic problems. ...more>>

  25. Twenty Tosses (TEAMS) - Jeannie Toshima; TEAMS Distance Learning, Los Angeles County Office of Education
    Toss a coin twenty times, and share class results. Students predicted how many heads or tails they might get if they toss a coin 20 times; tossed coins 20 times and recorded their results; compared their predictions with the actual results; teachers collected ...more>>

  26. Two Points of View - Tom O'Brien
    "Children are not stones or recording devices. They are, first of all, sense-makers." In summarizing his work with practicing teachers on the four basic operations, the author responds to H. H. Wu's article, "What's Sophisticated about Elementary Mathematics?" ...more>>

  27. Two Trains - Math Forum, a Classic Problem from the Ask Dr. Math FAQ
    Two trains leave different cities heading toward each other at different speeds. When and where do they meet? ...more>>

  28. Typing Math - Math Forum, Ask Dr. Math FAQ
    How should I type exponents? What about square roots? Why not use tabs? May I send attachments? ...more>>

  29. UberSmart Math Facts - David Kocur
    UberSmart Math Facts is a flash card program intended to help kids memorize the basic addition, subtraction, multiplication, and division facts. Site also has printable worksheets for non-computer practice. Try it free for 30 days or purchase a license. ...more>>

  30. UC Museum of Paleontology - University of California at Berkeley
    On-line exhibits, education and outreach programs, catalogs and collections, and links to other science and museum sites. Paleontology incorporates many different kinds of data from different fields. Search for type specimen data from the museum's Catalogs ...more>>

  31. UCSB Department of Mathematics Center for Mathematical Inquiry - Regents of the University of California
    Developing "inquiry-based learning approaches in the teaching of mathematics and a research base that examines teaching and learning through inquiry-based practices." See past workshops, course materials for University of California Santa Barbara (UCSB) ...more>>

  32. UK Mirror Service - Joint Information Systems Committee, Higher Education Funding Councils, UK
    Formerly HENSA, this national software archive service benefits the higher education and research community in the UK, funded by the Joint Information Systems Committee of the Higher Education Funding Councils. It maintains copies of electronic archives ...more>>

  33. The Ultimate Puzzle Site - van Gassel, Heijmans, van Veldhoven
    A site in English and Dutch by three Dutch students. Contents include: Various Basic Puzzles and Riddles (no mathematics); Harder Puzzles and Riddles (no mathematics); Mathematical and Logic-deductional Puzzles with solutions; Brain-Teasers; and Complex ...more>>

  34. ULTRALAB - Anglia Polytechnic University, U.K.
    A research centre that writes software for learners of all ages and researches all aspects of the use of technology in learning. Reports, papers, and articles; 'old' software and hardware computing archive. ...more>>

  35. Uncle Bob's Puzzles - Robert & Claire Mead, Haverhill, NH, USA
    Math and logic problems (no solutions); if you have questions, want a hint, or want to submit a solution you're invited to email the author. Asterisks indicate greater difficulty: Blind Cowboy; A Game of Catch; The Next Three; Grandpa's Birthday; Square ...more>>

  36. Understanding (Learning and Mathematics) - Greeno, Riley; Math Forum
    In their 1987 article, "Processes and Development of Understanding," James G. Greeno of Stanford University and Mary S. Riley of San Diego State University examine why younger children seem to lack the ability of older children to solve mathematical word ...more>>

  37. Understanding Mathematics: From Counting to Calculus - Keith Kressin, K Squared Publishing, Inc.
    A comprehensive book for anyone who desires clear and concise math explanations, written for a non-technical audience to cover the math fundamentals normally taught from first grade through college (for more information, see the Table of Contents). ...more>>

  38. Understanding 'Rate' Word Problems - Rick Garlikov
    A conceptual explanation of doing various kinds of math "rate" problems (e.g., "distance/speed/time" problems, problems involving combining work done by different agents working at different rates of speed, quantity/proportion problems, etc.). ...more>>

  39. Understanding Temperatures - NASA Lewis Learning Technologies Project
    These were the low temperatures recorded for January 15 in these cities: Minneapolis: - 6 degrees; Cleveland: 5 degrees; Fargo: -11 degrees; Chicago: 2 degrees; Milwaukee: -3 degrees; Detroit: -1 degree. Which city had the low temperature closest to 0 ...more>>

  40. Undusting Napier's Bones - Alexandros Diploudis; Heriot-Watt University, UK
    Biographical information about the Scottish mathematician John Napier, generally considered the inventor of logarithms, with a Java simulation of Napier's bones, a method for performing arithmetic operations by the manipulation of rods (called "bones" ...more>>

  41. The Uniform Polyhedra - Roman Maeder
    A shortened version of the notebook Polyhedra.ma from Illustrated Mathematics [Gloor/Amrhein/Maeder95]. Uniform polyhedra have regular faces and congruent vertices. Allowing for non-convex faces and vertex figures, there are 75 such polyhedra, as well ...more>>

  42. Unique Online Math Flash Cards - Lambert Smith, MathRUS.com
    Customizable formatting characterizes these flash cards for addition, subtraction, some multiplication and some division. Free 30-day trial; afterwards, a subscription is pay-what-you-can. The author writes: "This website for online math flash cards differs ...more>>

  43. UnitConversion.org
    Perform online unit conversions for volume, distance, temperature, time, speed, and more for a total of 2,100 kinds of units in 78 different categories. ...more>>

  44. Unit Conversions, Unit Cancellation - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about unit conversions and cancellations, from "Convert: 3.25 cm to millimeters...." to "If you can run 100 meters in 10 seconds, how long, in days, hours, and minutes, does it take you to run 12,800,000 meters?" ...more>>

  45. Unit Converter
    The converter works for units of area, energy, pressure, volume, temperature, mass, length, numbers, velocity etc. You put in a number and select a base unit and select a unit to convert to. The conversion result will immediately appear in the output ...more>>

  46. The United States and the Metric System - Office of Information Services, National Institute of Standards and Technology (NIST)
    A capsule history, with questions and answers, a metric chocolate chip cookie recipe, and some sample size relations (kilogram of butter to pound, etc.). ...more>>

  47. Unit Measurement Conversion - NASA Lewis Learning Technologies Project
    Which statement is NOT correct? 96 cups = 6 gallons; 9 days = 216 hours; 84 ounces = 7 pounds; 2 miles = 10,560 feet. A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  48. Units of Measurement - NASA Lewis Learning Technologies Project
    Which object is matched with its appropriate unit of measurement? Milligrams for the weight of a textbook; Kilometers for the length of a sailboat; Grams for the weight of a needle; Kiloliters for the capacity of a reservoir. A detailed answer is provided. ...more>>

  49. UnitWiz
    An online calculator converts units of length, area, density, energy, force, mass, power, pressure, speed, temperature, or volume. ...more>>

  50. The Universal Currency Converter - Xenon Laboratories Incorporated
    An interactive currency table. Versions are available in English, Spanish, and Swedish. The Universal Currency Converter™ allows you to perform interactive foreign exchange rate conversion on the Internet. Type the amount of source currency in the input ...more>>


 
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