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  All Sites - 1759 items found, showing 1601 to 1650

  1. Tim's Triangular Page - Alex Sakharov
    Information, definitions, and illustrations of triangles, their parts, and congruency. Includes a few min/max problems relating to triangles at the end. ...more>>

  2. Title III MSS Final Performance Report - Dana Lee Ling
    Dana Lee Ling is a mathematics and science software specialist at the College of Micronesia-FSM. Articles document the College's attempts to increase the success of pre-algebra and algebra students through "conceptual" and technology-based approaches. ...more>>

  3. To Accumulate a Rate — Integrate! - Kaleb Allinson
    Allinson teaches trigonometry and AP Calculus AB at Lake Stevens High School (WA), where he also serves as the math department head. He describes his blog as a venue to "help me reflect on my teaching.... and record the unique [ideas] I came up with for ...more>>

  4. Toads And Frogs Puzzle - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    An interactive exploration of the Toads and Frogs puzzle, also known as Hares and Tortoise; Sheep and Goats; Hop, Skip, Jump; and Traffic Jam. ...more>>

  5. Tomás Oliveira e Silva
    From an assistant professor in the Electronics and Telecommunications Department of the University of Aveiro, Portugal. On the Collatz problem: maximum number tested (N): 912^50 = 102456891522678784. ...more>>

  6. Toothpick Puzzle: a Math Line Puzzle - Math Forum
    Starting with the configuration shown, move exactly two toothpicks to form four 1x1 squares. You must use all the toothpicks, without any overlap. The final product will consist of exactly four squares, all the same size as the five in the original configuration. ...more>>

  7. Topics in Arithmetic and Elementary Mathematics - E. Lee Lady; University of Hawaii
    Materials used in a university course for prospective elementary school teachers, to teach them how to be interested in mathematics. Materials are in PDF and DVI, and include: representing numbers in other bases, divisibility tests, periodic decimal expansions, ...more>>

  8. Topics in Calculus - E. Lee Lady; University of Hawaii
    Files in PDF, DVI, and Postscript formats, to help students learn to use calculus in applications and to have confidence in setting up formulas using derivatives and integrals. Contents include: a conceptual approach to applications of integration, max-min ...more>>

  9. Topics in High School Mathematics - Martin Cohen
    Lesson ideas on geometric series, mathematical induction, Pythagorean triples, combinatorics, continuity, modular arithmetic, rotations and revolutions, and more. ...more>>

  10. Topics in Integral and Differential Calculus - Teresinha Kawasaki
    Interactive, illustrated introductions to polynomial functions, trigonometric functions, exponential and logarithmic functions, the derivative, differentiation formulas and the chain rule, differentiating trigonometric functions, max-min problems, integration, ...more>>

  11. Topics in Mathematical Recreations
    Arithmetic and geometric puzzles; polyhedra; fractals and chaos; board and positional puzzles; pi and its calculations, and tiling patterns, which can be thought of as making an infinite polyhedron. Includes a bibliography ranging from Abbott's Flatland ...more>>

  12. Topology and Geometry Software: Fun and Games - Jeff Weeks
    Fun math toys for all ages, from the author of Exploring the Shape of Space (grades 6-10) and The Shape of Space (grades 12-16). Applets and software for various platforms. Play with tic-tac-toe, mazes, and the like, on a torus or Klein bottle. Draw ...more>>

  13. Tournament of Towns - Math Net, University of Toronto
    A worldwide problem solving competition in mathematics. The contest attracts students of all mathematical interests and abilities with its inclusive rules and creative problems -- some as challenging as those of the International Mathematical Olympiad. ...more>>

  14. A Tour of Fractions - Math Forum
    The Web often seems more like a maze than an organized set of resources. To help you find what you need, the Math Forum presents a 'tour' of fractions, offering links to lessons, activities, and materials, questions and answers from Ask Dr. Math, and ...more>>

  15. A Tour of Measurement - Math Forum
    A central resource for people teaching and learning about measurement. For teachers there are links to lessons and materials, questions and answers from Ask Dr. Math, and recommended software, grouped by level (elementary, middle school, high school). ...more>>

  16. Tous pour les mathématiques au collège - David Monbru
    Courses mathématiques de niveaux sixième, cinquième, quatrième, et troisième. Exercises avec auto-validation incluent calculs avec ou sans parenthèses; calculs de fractions; opérations sur les nombres relatifs; ...more>>

  17. The Tower of Hanoi - Andrew Cumming
    Interactive version of the famous logic puzzle, in html and VRML versions, with a separate page about solving it. ...more>>

  18. Tower of Hanoi - Math Forum, a Classic Problem from the Ask Dr. Math FAQ
    There are three posts. Disks of different sizes are placed on the lefthand post, arranged by size with the smallest on top. You are to transfer all the disks to the righthand post in the fewest possible moves, without ever placing a larger disk on a smaller ...more>>

  19. Tower of Hanoi on the Web - Miroslav Kolar
    The legend: A group of Eastern monks are the keepers of three towers on which sit 64 golden rings. Originally all 64 rings were stacked on one tower with each ring smaller than the one beneath. The monks are to move the rings from this first tower to ...more>>

  20. Tower of Hanoi (SMILE) - Paul Eubanks, Washington High School
    A lesson for grades 6-12 designed to teach students to discover a pattern and to evaluate an exponential expression. From the Patterns and Logic section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for ...more>>

  21. Toying with Reality: Java Applets and VRML - Paul Flavin
    Virtual Reality: Modeling with Math, and a little Java. Applets to manipulate: The Pythagorean Theorem; Equation Grapher: "You type, I Graph"; Graphing Vector Calculator; Java 3d Visualizer; Virtual Rubik's Cube; Raytracing applet; Java Calculator; Play ...more>>

  22. Trachtenberg Speed System - Math Forum, Ask Dr. Math FAQ
    An introduction to Trachtenberg's system of performing high-speed multiplication, division, addition, subtraction, and square root, all in one's head, with references. ...more>>

  23. Transversal of a Latin Square - Jay's Corner
    A transversal in a Latin Square is a collection of positions, one from each row and one from each column, so that the colors that are in these positions are all different. This page shows an example of a transversal in a 4x4 Latin square See also Transversals ...more>>

  24. The Traveling Salesman Problem (TSP) - Vasek Chvátal
    The problem: given a finite number of cities and the cost of travel between each pair of them, find the cheapest way of visiting them all and returning to your starting point. This site includes a link to TSPLIB, Gerhard Reinelt's library of some hundred ...more>>

  25. Travelling Salesman's Problem - Gunno Törnberg
    Algorithms to solve the travelling salesman's problem (a travelling salesman is to visit a number of cities; how to plan the trip so every city is visited once and just once and the whole trip is as short as possible?) Links to Java applets; the shell ...more>>

  26. The Travelling Salesman's Problem - Manu Konchady
    A trucking or delivery company is focused on optimum delivery cost. This can be achieved by using a system which determines the best highway route for each load. An optimum highway route can be displayed on a map. A route with 16 nodes is used to test ...more>>

  27. Triangle in Square Puzzles - Erich's Puzzle Palace; Erich Friedman
    Eight puzzles involving cutting squares into triangles under certain constraints. Answers provided. ...more>>

  28. Triangle Puzzle - Evelyn Sander, Geometry Forum Archives, The Geometry Center
    Pick an arbitrary point in the interior of an equilateral triangle. Now go halfway towards one of the three vertices (you get to pick which vertex). Now you are at a new point in the triangle. Again go halfway towards any vertex. Continue this process. ...more>>

  29. Triangles and Pyramids: Playing Math! - Hollis Easter
    A "teachable" on the construction of free-standing pyramids made "by folding a single piece of paper, with only a single piece of tape to hold them together...." This blog post goes on to include photos of a net, diagrams, and "things to investigate": ...more>>

  30. 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>>

  31. triangular prism - Manjit Singh Atwal
    Download lessons and worksheets about triangular prisms, including finding surface areas and volumes. ...more>>

  32. 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>>

  33. Tricky Crossings - Ivars Peterson (MathLand)
    Have you heard the one about an itinerant entertainer traveling with a wolf, a goat, and a basket of cabbages? The showman comes to a river and finds a small boat that holds only himself and one passenger. For obvious reasons, he can't leave the wolf ...more>>

  34. Trigonometry and Calculus Problem of the Week - Math Forum
    Trigonometry and calculus problems from a variety of sources, including textbooks, math contests, NCTM books, puzzle books, and real-life situations, designed to reflect different levels of difficulty. From 1998 until 2002, the goal was to challenge students ...more>>

  35. TriMathlon: A Workout Beyond the School Curriculum - A. K. Peters, Ltd.
    Companion site to the book TriMathlon: A Workout Beyond the School Curriculum, by Judith and Paul Sally. Discuss math, the book, or the site with members of the Trimathlon community; explore the current "Periodic Puzzler"; or play one of the Shockwave ...more>>

  36. Trioker - Triominoes Puzzle - J. Marc Genevey
    Le jeu de Trioker a été inventé par Monsieur Odier et étudié par lui-même et son compère Mr Roussel dans leur ouvrage Surprenant Triangles. Il est composé de l'ensemble des 24 pièces triangulaires ...more>>

  37. Trisecting a Line Segment - Robert Styer
    Several ways to trisect a line segment using compass and straightedge. ...more>>

  38. True Learning - Jinhee and Joseph Kim, True-Learning LLC
    Early learning curriculum, worksheets and lesson plans. The True Math activities provide an advanced foundation in math for your child with visually intuitive and engaging exercises. Free samples. ...more>>

  39. TSPBIB (Traveling Salesman Problem) - Pablo Moscato
    A comprehensive listing of papers, source code, preprints, technical reports, etc., available on the Internet about the Traveling Salesman Problem (TSP) and some associated problems such as Fractal TSP Instances and VRP Instances, with links to software ...more>>

  40. TurkZeka - Yilmaz Ekici, TurkZeka.com
    Clever puzzles, posted regularly, with quarterly puzzle competitions open to all with free login. In Turkish, English, and Japanese. ...more>>

  41. 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>>

  42. 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>>

  43. TutorVista - TutorVista.com
    Interactive lessons, worksheets, and homework help for math students grades 3-12 from this online education company. ...more>>

  44. 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>>

  45. The Two-Headed Quarter by Joseph Ganem - Chartley Publishing, LLC
    A companion site to The Two-Headed Quarter, written by a physicist scrutinizing day-to-day financial decisions, such as "How far should you drive to buy cheaper gas?" and "Is money saved when you buy on sale?" and "How far should you drive to save money?" ...more>>

  46. 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>>

  47. UC Berkeley Mathematics Department
    Department info; a collection of the Berkeley [Ph.D.] preliminary exams; undergraduate study hints and survival guide; Notherian Ring (women in mathematics at Berkeley - includes WWW sites of interest to women mathematicians or grad students); Center ...more>>

  48. The Ultimate Online Review Book - ThinkQuest 1997
    Previous New York State Regents Exams available to help you study for standardized tests. Tests and answer keys from the early 1990s are organized into Sequential Math 1, Sequential Math 2, Sequential Math 3. ...more>>

  49. 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>>

  50. 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>>


 
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