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  All Sites - 10783 items found, showing 10201 to 10250

  1. University of South Carolina High School Math Contests - David Sumner
    Problems from the University of South Carolina (USC) High School Math Contests, since 1994. Walk step by step through illustrated solutions to each problem using the "next step" button. The delivery of questions is designed for competitive timing. Also, ...more>>

  2. UniVirtual Slide Rule Emulator - Andrew Davie
    A real-time, fully configurable, slide rule emulator in Java. Zoom, reconfigure on-the-fly, and work multiple slides and multiple cursors, each of which supports multiple gauge marks and hairlines. ...more>>

  3. 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. ...more>>

  4. Unlocking Ways to Make Your Math Simple - Rajinder Goswami
    An ebook meant to enhance calulating skills. It focuses on comprehension, speed, and accuracy. Two Flash examples provided; download the whole book for a fee. ...more>>

  5. Unlucky in Cards (Math Chat) - Frank Morgan, MAA Online
    In his Contract Bridge syndicated column Phillip Alder says that the odds against getting a "Yarborough - a hand with no card higher than a nine" are 1827 to 1, and that the odds against two players getting a Yarborough on the same deal are about 182 ...more>>

  6. Unsilence Students' Voices - Suzanne Alejandre
    Article discussing how to provide an opportunity for all students to contribute to math classroom discussions. Originally published in the September, 2012, issue of the CMC ComMuniCator, journal of the California Mathematics Council, this article intersperses ...more>>

  7. Unsolved Problems in Function Theory - Alexandre Eremenko
    Files available in PDF format: Some constants studied by Littlewood; Meromorphic functions satisfying certain differential equations (E. Hille); Does every universe contain a place where you can stay at rest? (Lee Rubel); Holomorphic curves with few inflection ...more>>

  8. Unsolved Problems in Number Theory, Logic, and Cryptography - Tim Roberts
    This site "concentrates only on problems which are easily understandable to the amateur.... explainable on a single screen (perhaps 200 words), using simple terminology." Read brief descriptions of open problems such as the Chromatic Number, the Collatz ...more>>

  9. Unstructured Grids (UG) - Institut für Computeranwendungen, UniversitU7auml;t Stuttgart
    A flexible software tool for the numerical solution of partial differential equations on unstructured meshes in two and three space dimensions using multigrid methods. Its basic design is flexible enough to support many different discretization schemes. ...more>>

  10. Untangled - Mehta, Gayatri; Luo, Xiaozhong; et al.
    Map and place logic blocks in this game to make more compact circuit layouts on a grid -- and more efficient computer chips. Visually appealing graphs bring nodes closer to parents or children and untangle knots in graphs; behind the scenes, the accumulated ...more>>

  11. Untangling the Mathematics of Knots (MegaMath) - Nancy Casey; Los Alamos National Laboratory
    Fundamentals of knot theory for a wide range of levels - a variety of activities for exploring knots made from pieces of rope. Students can make and verify observations about knots, classify them, combine them, and find ways to determine if two knots ...more>>

  12. US2020
    By organizing a million mentors from industry, this organization hopes to provide "uplifting moments of discovery to children through real-world, hands-on projects and academic coaching" in science, technology, engineering and math (STEM) fields. The ...more>>

  13. USA Map Jigsaw Puzzle - Jill Britton
    Students are challenged to move each of the contiguous 48 states into the correct position on the map. Note the number of colors necessary for separation of the states. ...more>>

  14. USA Mathematical Talent Search (USAMTS) - The Art of Problem Solving Foundation
    The USA Mathematical Talent Search (USAMTS) is a free mathematics competition open to all United States high school students that emphasizes problem solving and mathematical writing. Funded by the National Security Agency, USAMTS was initiated by George ...more>>

  15. USAMO/APMO/IMO/Putnam Archive - Kiran S. Kedlaya
    Questions from some recent math competitions, in LaTeX or postscript format: the USA Mathematical Olympiad (USAMO) for high school students [1989-1999]; the Asian Pacific Mathematical Olympiad (APMO), a regional olympiad among countries on the Pacific ...more>>

  16. 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 ...more>>

  17. U.S. Department of Education
    Extensive and varied education information in categories including: educational initiatives (President's and Secretary's priorities), funding opportunities, student financial assistance, research and statistics, news and events, programs and services, ...more>>

  18. Use A Chair To Teach Math (SMILE) - Laura B. Reed, Rosa L. Parks School
    A lesson designed to teach students some basic operations of math through measuring a chair. Sample questions: What size box would it take to mail the chair? Could two chairs fit in the same box? How many chairs could fit in this room? What area of space ...more>>

  19. Useless Facts about Pi - Paris
    Facts "so useless not one of them has much bearing on pi's value": Euler's Relation; Irrationality (Niven's proof); Transcendence; Quadrature of the Circle with ruler and compass; The Content of n-Spheres. ...more>>

  20. 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 ...more>>

  21. Usenet FAQ Archive : Recreation : Puzzles - Netmeg Internet
    Problems and puzzles, with solutions, from the rec.puzzles archives, in the categories: analysis, arithmetic, combinatorics, competition, decision, geometry, group, induction, instructions, language, logic, physics, pickover, probability, real life, references, ...more>>

  22. U.S. Geological Survey - U.S. Department of the Interior
    Scientific fact-finding 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 ...more>>

  23. Using Algebra and Discrete Mathematics to Investigate Population Changes in a Trout Pond (i-Math 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 ...more>>

  24. Using A Round-O-Meter To Estimate (SMILE) - Kathleen M.K. Pidrak, Edward H. White School
    A lesson designed to teach rounding of numbers to the nearest dollar or nearest dime. From the Practical and Applied Math section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative for Learning Enhancement. ...more>>

  25. Using Children's Literature in Mathematics - Elaine Young
    A list of children's books (with authors) that can be used in math lessons. ...more>>

  26. Using Diagrams in Problem Solutions (SMILE) - Angel L. Torres, Peabody School
    A lesson for grades 7-8 designed to teach students to use tables, graphs, and diagrams to obtain information; and to construct tables, graphs, and diagrams to collect data. From the Patterns and Logic section of a collection of almost 200 single concept ...more>>

  27. Using Manipulatives - Math Forum, Teacher2Teacher FAQ
    Answers to a frequently asked question: What role can manipulatives play in the classroom? ...more>>

  28. Using Mathematica in the Mathematics Classroom - Univ. of Illinois
    A course module designed for high school and lower division college mathematics teachers who are beginners with Mathematica and who want to learn to use this software package to create transparencies and handouts, computer demonstrations, and interactive ...more>>

  29. Using Sketchpad: Circles - Jim King, University of Washington
    A sketch illustrating families of circles orthogonal to a given circle or line, which give some motivation for the idea of reflecting a point across a line or circle. Notes on Jim King's presentation at the Sketchpad User's Group Meeting in Cincinatti ...more>>

  30. Using Sketchpad: Conics - Peter Andrews, Eastern Illinois University
    Two sketches illustrating techniques for constructing general conic sections, one on Isaac Newton's Organic Construction and one on the MacLaurin/Braikenridge construction of a general conic. Notes on Peter Andrews' presentation at the Sketchpad User's ...more>>

  31. Using Sketchpad in Calculus - Doris Schattschneider, Moravian College
    Three sketches about parametric equations of curves and a sketch about a (then) unsolved problem about perpendicular bisectors of quadrilaterals. Notes on Doris Schattschneider's presentation at the Sketchpad User's Group Meeting in Cincinatti in January ...more>>

  32. Using Sketchpad: Triangles - Mel Thornton, University of Nebraska
    A sketch about relations between the areas of certain triangles, and another about how to perform translations using only a compass. Notes on Mel Thornton's presentation at the Sketchpad User's Group Meeting in Cincinatti in January 1994. ...more>>

  33. Using Symmetry to Create A Community Quilt (SMILE) - Beverly Brown, Hedges West
    A lesson for grades 4-12 designed to teach students about line and reflectional symmetry through cooperative work on a quilt with four lines of symmetry. From the Patterns and Logic section of a collection of almost 200 single concept lessons by the Science ...more>>

  34. Using Technology to Enhance Engaged Learning for At-Risk Students (NCREL) - Barbara Means; Pathways to School Improvement
    A "critical issue": An increasing number of educators are calling for high standards and challenging learning activities for at-risk students. New technologies can provide meaningful learning experiences for all children, especially those at risk of educational ...more>>

  35. Using Technology to Support Education Reform - Means, Blando, Olson, Middleton, Morocco, Remz, & Zorfass
    1993 publication of the Office of Educational Research and Improvement, U. S. Department of Education. Includes sections on educational technologies, support for student learning activities, support for teacher functions, effects on student achievement, ...more>>

  36. Using Technology to Transform Mathematics Teacher Education: An Example from Graphing Instruction - Lisa Denise Murphy
    An examination of how an example of a use of technology in mathematics education - microcomputer-based laboratory (MBL) work used to teach students about line graphs - fits Pea's framework (the effects of transformation are less predictable than those ...more>>

  37. Using the Balance (SMILE) - Marie Davis, Marconi Community Academy
    A lesson designed to teach students to use an equal arm balance to determine the mass of an object by comparing it with the mass of objects whose mass in grams is known; and to use graph paper to construct a bar graph. From the Algebra and Trigonometry ...more>>

  38. Using the Fibonacci numbers to represent integers - Ron Knott
    We use base 10 for written numbers, and computers use base 2, but what about using the Fibonacci numbers as the column headers? or base Phi (1.618034...) instead of base 10? There are some interesting infinite series that relate to these - each with a ...more>>

  39. Using the Geometer's Sketchpad - Jeremy Bartusch, revised by Tony Peressini and Tom Anderson
    An interactive tutorial on how to use the Geometer's SketchPad software, and an introduction to how this application can be used to teach geometry and to produce classroom resources with plane geometry components. Sponsored by the University of Illinois ...more>>

  40. Using the Internet: Mathematics - Douglas Butler; Pearson Publishing (U.K.)
    A 55-page looseleaf book compiled to save teachers time finding excellent resources on the WWW and to provide a curriculum-based bank of ideas. Support activities do not demand that students have free access to the Web. The pack is divided into ten main ...more>>

  41. Using Variables And Ratios To Get You In The Right Gear (SMILE) - George K. Smith, Dunbar Vocational High School
    A lesson designed to teach students to apply the concepts of variable and ratio in everyday situations; determine the gear ratios and gears for a 12-speed bicycle; and write a computer program that will determine gears using the bubble sort technique. ...more>>

  42. Using Virtual Manipulatives on the Web to Develop Number Sense - Margo Lynn Mankus
    Java applets, activities, hand-made manipulatives, and links related to the topic. ...more>>

  43. US Math Recovery® - US Math Recovery® Council
    Publishers of Math Recovery®, Intervention Specialist, Add+VantageMR®, and SNAP. US Math Recovery®'s early intervention teaching programs offer constructivist-based approaches to developing numerical competence. ...more>>

  44. U.S. Metric Association (USMA), Inc. - Don Hillger; Colorado State University
    A national non-profit organization that advocates U.S. conversion to the International System of Units, which goes by the abbreviation SI, also called the modern metric system. The process of changing our system of units to the metric system is called ...more>>

  45. USolv-IT - Paul Igodt and Frank De Clerck
    In Dutch or English: USolv-IT is a database containing thousands of mathematics/physics/statistics problems as an assessment tool. Part of the content is freely accessible via the web. A major part is for use by teachers in course contexts. ...more>>

  46. U.S. Olympic PBS Cyber School - IBM
    Built around the 1998 Olympics in Nagano, Japan, the PBS Cyber School uses downhill skiing, snowboarding, and figure-skating to offer problem-solving challenges for middle school students, who are invited to build their own site using the IBM HomePage ...more>>

  47. The U.S. Shirts Problem (PUMP Algebra Project) - Bill Hadley
    When PAT-E-OH Furniture Inc. went out of business, you were able to get another job at U. S. Shirts, a custom Tee shirt shop that prints shirts for customers. You job is to calculate costs for the various orders. For each order, U.S. Shirts charges $8 ...more>>

  48. US Third in Math Olympiad (Math Chat) - Frank Morgan, MAA Online
    Answer to the Challenge: a small creature needs to find its way from a random point on an mile-wide strip of land to the sea on either side, by going distance r in a random direction and then (if it has not yet found the water), turning once t degrees ...more>>

  49. U Substitution - Technical Tutoring
    The site describes the substitution method for solving integral problems by means of numerous examples and exercises. ...more>>

  50. U.S. Universities & Community Colleges - University of Texas at Austin
    Universities and community colleges with Web sites in the United States, alphabetically or by state. A form is available for you to add an item. ...more>>

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