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  All Sites - 4625 items found, showing 3201 to 3250

  1. Open-Ended Assessment in Math - Cooney, Thomas J.; Sanchez, Wendy B.; Leatham, Keith; and Mewborn, Denise S.
    Over 450 open-ended, field-tested assessment items, distributed more or less equally among elementary, middle school, and high school grade levels. The questions relate to five major content areas, based on the NCTM Standards: number and operation; probability ...more>>

  2. Open-Ended Math Problems - Gwenn Holtz and Mary Lee Malen, Levering School and the Franklin Institute
    An eight-month slate of open-ended problems for middle school students to solve in preparation for standardized testing. The authors have composed and selected problems that lend themselves to multiple solution paths, and then organized them into three ...more>>

  3. Open Middle - Johnson, Nanette; and Kaplinsky, Robert
    "Open middle" problems, hints, and answers, all aligned to the Common Core State Standards (CCSS). Introduced by Dan Meyer, these kinds of math challenges have a "closed beginning," meaning that they all start with the same initial problem; a "closed ...more>>

  4. Optical Data School Media
    A publisher of math and science programs, including Windows on Math, an activity-based laserdisc and videotape curriculum built around the NCTM standards. Most products are for levels K-8. Find Correlations for Optical Data products to a wide range of ...more>>

  5. Optical Illusions (SandlotScience.com) - SandlotScience
    Interactive explorations of optical effects, illusions, distortions, animations, artwork, stories, PDF projects, games, and more. Impossible objects include columns, an endless staircase and animated stairs, Java triangle models, an interlaced tri-bar, ...more>>

  6. Oranges Project Page - Debbie Lewis; The Levering School, Philadelphia, PA
    An eighth grade project. Students use measurement to investigate the proportional relationship between the edible part of an orange and the peel or inedible part of a orange. They investigate different types of oranges such as navel, blood, and clementines ...more>>

  7. Orbifold Pinball - Yevgeniy Dodis; The Geometry Center
    A game in which you roll a ball on an unusual playing field. The game board is like ordinary pinball in that it features 'bumpers' off which the ball can bounce. But in this game, the board is 'curved' in such a way that a ball barely missing the bumper ...more>>

  8. The Orbifold Shop (Geometry and the Imagination) - Conway, Doyle, Gilman, Thurston; The Geometry Center
    A symmetry project: the Orbifold Shop offers a free coupon for $2.00 worth of parts, installation included, to anyone acquiring a new orbifold. There are only a few kinds of features for two-dimensional orbifolds, but they can be used in combinations: ...more>>

  9. Orbit Research
    Developers and manufacturers of Orion Talking Scientific calculators the TI-84 Plus and the TI-36X, the iBill Talking Banknote Identifier, and other "products that enable an independent lifestyle for the physically challenged" -- the visually impaired ...more>>

  10. Orbits and Gravitation - MacTutor Math History Archives
    A hypertext essay covering Copernicus through Poincaré, Levi-Civita, and Birkhoff, with References. ...more>>

  11. Order of Operations - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about order of operations, such as "What is PEMDAS?" and the place of factorials in arithmetic operations. ...more>>

  12. Order of Operations - Math Forum, Ask Dr. Math FAQ
    What is the correct order of operations? Why use it? What is PEMDAS? ...more>>

  13. Order Of Operations (SMILE) - Bernice E. Holloway, Bellwood School District 88
    A lesson designed to teach students to use grouping symbols and the standard order of operations to simplify numerical expressions; to use the order of operations to evaluate variable expressions; and to use the calculator and computer to solve numerical ...more>>

  14. Origami Page - Joseph Wu
    Origami is the art of paper folding. The word is Japanese, literally meaning "to fold" (oru) "paper" (kami). Links to photo galleries, information on origami, files and diagrams, other origami home pages, and areas related to origami (A paper on Molecular ...more>>

  15. Origami Snowflake Game - Rick Nordal
    Origami designs to fold from a "snowflake" base — a square of 32 identical 45°-45°-90° triangles. Topics from Nordal's sixteen chapters include "Base fold geometric snowflakes," "Lightning folds," "How to fold 3 geometric snowflake shapes," ...more>>

  16. OrigamiUSA
    Resources for origami enthusiasts and for those just learning the art of paper folding: Events (calendar, convention, and exhibit information); Resources (model index, links, e-mail discussion list, folding groups directory, and lending library); Shopping ...more>>

  17. Original Lesson Plans - Mathematics - Thirteen/WNET New York
    Original Web-based activities developed by Thirteen Ed Online Master Teachers. Each lesson consists of an overview with learning objectives, procedures for teachers, and "organizers" for students -- hand-outs, bibliographies, and other materials. Math ...more>>

  18. Orlando Sessions on Constructivism - The Math Forum
    The 1996 AMS/MAA Joint Mathematics Meetings in Orlando, Florida featured presentations on constructivism. The goal: to disseminate innovative, successfully class-tested pedagogical theoretical view of how mathematics is learned. ...more>>

  19. ostermiller.org - Stephen Ostermiller
    Converters, Calculators, and JavaScript include Multiplication Game, in which letters represent digits in a multiplication problem; Length, which converts between units of length and distance; Roman Numerals, which converts between Arabic and Roman numerals; ...more>>

  20. Ostrich Llama Count - Examining Solution Methods - Suzanne Alejandre
    Activity, alignments, directions, extensions, and activity sheets that detail five ways to solve the Problem of the Week (PoW) "Ostrich Llama Count." Originally published in the March, 2013, issue of the CMC ComMuniCator, journal of the California Mathematics ...more>>

  21. Our Town (The Weather Unit: Math Application) - Collaborative Lesson Archive
    A lesson that uses and/or introduces new tools in geography, math, and science to make observations and draw conclusions on the local temperature variations in your area. Colorado State Standard addressd: Students use algebraic methods to explore, model, ...more>>

  22. Outposts, the Geometry Forum Newsletter Online - Sarah Seastone; The Math Forum
    The newsletter of The Geometry Forum, published in 1994-95: Swarthmore College's electronic home for geometers of all kinds. ...more>>

  23. Overthinking My Teaching - Christopher Danielson
    Blog by a community college math teacher "interested in hard questions about teaching." Posts, which date back to July, 2009, have included "Wump hats," "An unnoticed rule for number language," "The end of word problems," "Cubeyness," "Cardinal and ordinal ...more>>

  24. An overview of Babylonian mathematics - MacTutor Math History Archives
    Linked essay exploring the arithmetic and geometry of the Babylonians, who lived in Mesopotamia, a fertile plain between the Tigris and Euphrates rivers. The Babylonian civilization replaced the Sumerian civilisation and the Akkadian civilisation; this ...more>>

  25. An overview of Egyptian mathematics - MacTutor Math History Archives
    Linked essay on the development of the Egyptian number systems, and the arithmetical methods they devised to work with their numerals. With references and other related web sites. ...more>>

  26. An overview of Indian mathematics - MacTutor Math History Archives
    Linked essay on the contributions of Indian mathematics, in particular the number system invented by the Indians, on which much of mathematical development has rested. With references and other related web sites. ...more>>

  27. Overview of the History of Mathematics - MacTutor Math History Archives
    Linked overview from the Babylonians through topics from the twentieth century, with additional sections on notation and communication, brilliant discoveries, how we view history, and a challenge, as well as a 700-item general bibliography. ...more>>

  28. Oxford University Press
    The world's largest university press, publishing 3,000 new books a year, including scholarly works in all academic disciplines, bibles, music, school and college textbooks, children's books, materials for teaching English as a second language, business ...more>>

  29. Packing Videotapes - NASA Lewis Learning Technologies Project
    Roger had to pack videotapes 10 to a box. If he had 178 tapes of one kind and 121 of another kind, how many boxes would he need in order to pack them all and not mix the different types? A detailed answer is provided. From NASA's 9th Grade Math Proficiency ...more>>

  30. Page of Conversion (Convert It) - Ramsviks, Adler
    Enter a number and press the tab key to convert among bases, tempreatures, and measures and weight. ...more>>

  31. Pages Mathématiques - Lycée de Vienne Saint-Romain-En-Gal (académie Grenoble)
    Une série de cours de mathématiques: Géométrie du triangle; Transformations; Géométrie des cercles; Barycentres; Coniques et courbes; Solides; Statistiques; Fractales; Géométrie non euclidienne; ...more>>

  32. Pairing Like Students for Perseverance in Problem Solving - Marie Hogan
    Article about how one particular duo of eighth grade Pre-Algebra students, paired by ability level, overcame a contentious start to work together and "reach new heights of problem-solving proficiency." Originally published in the March, 2013, issue of ...more>>

  33. Palindromic Numbers and Other Recreational Topics - Patrick De Geest
    Many odd facts about big (and little) numbers, including circular primes and palindromic triangulars, tetrahedrals, squares, cubes, and primes. Also assorted odd puzzles, etc. ...more>>

  34. Palindromic Primes - Ivars Peterson (MathTrek)
    Palindromic primes are whole numbers, evenly divisible only by themselves and 1, that also have the same sequence of digits read forward or backward... The current record for the largest known palindromic prime is held by Harvey Dubner, a retired electrical ...more>>

  35. Panamath - Panamath.org
    Have you ever tried to guess how many jelly beans are in a jar without counting? The Panamath test measures your number sense -- your intuitive recognition of numbers and their relationships -- and approximate number system (ANS) aptitude. Practice estimating ...more>>

  36. Panitz cooperative learning and WAC web page and much more - Ted Panitz, Cape Cod Community College
    Workshops, articles, and other resources on cooperative learning and pedagogy. ...more>>

  37. Pantagraph (Manipula Math) - International Education Software (IES)
    A pantograph is a drawing instrument for magnifying figures. Using the applet on this page, by moving the red point to trace an original figure you can automatically obtain a magnified figure with the pen at the blue point. ...more>>

  38. Panthera's Puzzle Contest - Dr. Amy Galitzer; Puzzle University
    A weekly contest of math, logic, and word puzzles sponsored by the American Mathematical Society and the University of Maryland Mathematics Department. You can submit your own puzzle for the next contest by signing up to participate, or simply read the ...more>>

  39. paperfolding.com - Eric Andersen
    Learn to fold origami from diagrams; read about the history of paper-folding, including the origin of the term "origami." The origami & math essay contains sections such as Origami, Geometry, and the Kawasaki Theorem; and Origami and Topology. ...more>>

  40. Paper-Folding-Fractals - Joel Castellanos, Rice University
    A classroom teaching or personal learning software tool for Windows that can be an introductory lesson to fractals. Simple, step-by-step processes of paper folding can give rise to infinite verities of fractals. The user learns what fractals are and how ...more>>

  41. Paperforms: Polyhedrons for the Masses - John T. Vonachen
    Geometric paper sculptures offered for sale. ...more>>

  42. Paperkit
    Generate the exact type grid paper using this printable graph paper template. Specify format, units, spacing, margin, and stroke width and color. ...more>>

  43. Paper Models of Polyhedra - Gijs Korthals Altes
    Dozens of paper models of polyhedra: Platonic and Archimedean solids, compounds, caleidocyli, and more. Print the images, cut, and glue them together, or download the models in zipped CorelDraw or GIF format. ...more>>

  44. Paper Mosaics - Alex Bateman
    Origami tessellations consist of a simple crease pattern unit that gets repeated across a sheet of paper. Download Tess, a computer program that aids in the design of such tilings; and browse a gallery of works created with the application. ...more>>

  45. Papers by Dr. Bert K. Waits - Dr. Bert K. Waits
    In PDF format, essays include "The Role of Hand-Held Computer Symbolic Algebra in Mathematics Education in the Twenty-First Century: A Call for Action!"; "The Role of Graphing Calculators in Mathematics Reform"; "The Evolution of Instructional Use of ...more>>

  46. Parallel lines and Angles (SMILE) - Earl M. Singleton, III, Daniel Hale Williams School
    A lesson designed to teach students to identify the names and measurement of angles formed when parallel lines are intersected by a transversal. From the Geometry and Measurement section of a collection of almost 200 single concept lessons by the Science ...more>>

  47. Parent Roadmaps to the Common Core Standards - Mathematics - The Council of the Great City Schools
    Guides for parents of children learning the mathematics of the Common Core State Standards (CCSS), and how to support that learning. Running six to eight pages in length, each freely downloadable roadmap includes examples; sections such as "Partnering ...more>>

  48. Parent's Page - Chicago System Initiative (CSI)
    A list of informative sites for parents who have questions about parenting and how to get involved in their children's education. Topics include Family Math (a page on math education); Helping your child learn math; Math and Your Child (information on ...more>>

  49. Parent Toolkit - NBC Education Nation
    Academic "growth charts," tips, benchmarks, advice, and other guidance for parents, organized by grade. Parent Toolkit also provides tablet-friendly parent-teacher conference guides, checklists, and templates for taking notes. ...more>>

  50. The Partnership for 21st Century Skills
    The Partnership for 21st Century Skills is a national organization that advocates for the integration of skills such as critical thinking, problem solving and communication into the teaching of core academic subjects such as mathematics, reading, science ...more>>


 
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