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  All Sites - 7025 items found, showing 1151 to 1200

  1. Covering Up (MatheMUSEments!) - Ivars Peterson (Math Muse for Kids)
    Have you ever wondered why the cover of a manhole is nearly always round? Why couldn't it be oval or square? The usual answer is that a circular lid, unlike a square or an oval cover, won't fall through the opening, but the circle isn't the only shape ...more>>

  2. The Cow in the Classroom - Ivars Peterson (MathLand)
    Math Curse by Jon Scieszka and Lane Smith spoofs the types of word problems that educators and textbook writers invent to dress up arithmetic exercises and, supposedly, to demonstrate the relevance of math to everyday life. Canadian economist and humorist ...more>>

  3. CPMP-Tools - Core-Plus Mathematics Project (CPMP)
    CPMP-Tools is a suite of both general purpose and custom software tools designed to support student investigation and problem solving in the 2nd edition Core-Plus Mathematics texts. The Core-Plus Mathematics Program was one of five designated as "exemplary" ...more>>

  4. CPO Online - Cambridge Physics Outlet
    A company founded by teachers and scientists that creates hands-on equipment and curriculum for teaching science, math, and technology from grades 4-12 and beyond, and provides effective professional development in science and math that is both content ...more>>

  5. C Program Math Functions - Dave Norman
    Examples of C coding for some maths problems. Current functions are atan (double x), cos (double x), and sin (double x). ...more>>

  6. Cracking a Medieval Code - Ivars Peterson (MathTrek)
    The first printed book on cryptology was written by Johannes Trithemius (1462-1516), an abbot in Spanheim, Germany, who was one of the leading intellectuals of his day. Bearing the title Polygraphiae libri sex ("Six Books of Polygraphy"), it was published ...more>>

  7. Cracking Kepler's sphere-packing problem - Ivars Peterson; Science News Online
    The familiar piles of neatly stacked oranges at a supermarket represent a practical solution to the problem of packing spheres as tightly as possible. Thomas C. Hales proved that no other arrangement of identical spheres fills space more efficiently, ...more>>

  8. Cracking the Myth of Ball Control - Ivars Peterson (MathLand)
    Ball control has become common practice in a number of sports. In basketball, for example, coaches often urge their teams to slow down a game at certain times or to control its tempo. In professional football, "time of possession" has become a statistic ...more>>

  9. Crackpot Index - John Baez
    A fun site which outlines how you can tell if a new theory is really from a "crackpot." ...more>>

  10. Crafty Puzzles - James Cole, The Crafty Puzzles Company
    A U.K. establishment selling wooden puzzles of all sorts: jigsaw puzzles, puzzle boxes, brain teasers, models, and functional pieces. ...more>>

  11. A Crash Course in Symbolic Logic - D.J. Brasier; Math Forum, Ask Dr. Math FAQ
    Is symbolic logic so hard that some people will just never be able to get it? In a gentle introduction to the notation and rules of derivation used in symbolic logic, Dr. Achilles shows why the answer to that question is 'No'. ...more>>

  12. Crashing Waves, Awesome Explosions, Turbulent Smoke and Beyond: Applied Mathematics and Scientific Computing in the Visual Effects Industry [PDF document] - Aleka McAdams, Stanley Osher, and Joseph Teran
    The May 2010 issue of the Notices of the American Mathematical Society includes a PDF article (1.3M) entitled "Crashing Waves, Awesome Explosions, Turbulent Smoke, and Beyond: Applied Mathematics and Scientific Computing in the Visual Effects Industry." ...more>>

  13. Crazy Math Teacher Lady - Lisa Bejarano
    A high school math teacher in Colorado, Bejarano began blogging after "an awesome 3 day experience at NCTM Denver." Original classroom materials by herself and her students regularly enrich her posts, which date back to that April, 2013 annual meeting ...more>>

  14. CRC Press LLC
    A scientific and technical publisher of books, journals, regulatory newsletters, and environmental seminars. A searchable online catalog may also be browsed by topic, among others Engineering, Computer Science, and Math & Statistics. ...more>>

  15. Create 2D and 3D gnuplot Graphs
    Input a function, vary parameters, plot 2D, 3D Surface, or 3D Contour, vary range displayed, and plot multiple functions at once. With help on various features, and links to graphing animated plots and varying the parameters. Part of the Shodor Educational ...more>>

  16. Create a Graph - National Center for Education Statistics (NCES)
    Create your own graphs online: bar graphs, line graphs, area graphs, pie charts, or XY graphs (line, bubble, or scatter plots from Cartesian coordinates). Enter your own data, choose your own labels, preview your work, then print or save your graphs. ...more>>

  17. Creating N-Cubes - Dennis Clark
    Web and PowerPoint files for learning how to make tesseracts, draw n-space cubes, and chase snakes, or certain closed paths (loops), in n-space cubes. Also, download Ncubes.exe, a Visual Basic program to draw N-cubes. ...more>>

  18. Creative Geometry - Cathleen V. Sanders
    Teachers and students will find creative and interesting "hands-on" projects for most topics in the geometry curriculum. Each project is designed to help students understand, remember, and find value in the concepts of geometry. The pages are organized ...more>>

  19. Creative Java Puzzles - J. L. Read, Enchanted Mind
    Games "good for exercising both sides of the brain." Knight's Tour: pass all the squares of the board with the knight, making only legal moves. Peg Solitaire: Remove all the pegs in the least amount of time, finishing with only one peg in the target hole. ...more>>

  20. Creative Problem Solving - Rob Eastaway
    Eastaway's "portfolio" of interests includes short descriptions of his school talks, newspaper articles, and books he has authored or co-authored, such as Maths for Mums and Dads, The Hidden Mathematics of Sport, How to Remember Almost Everything, Ever, ...more>>

  21. Crewton Ramone's Blog of Math - Crewton Ramone
    Ramone's blog, which dates back to July, 2009, has included posts -- many with video -- such as "Fractions Despite SPED," "Why Invert and Multiply," "4 Year Old Math Enrichment," "Fractions and Addends," "Fractions and Autism Do in Fact Mix," and "Fraction ...more>>

  22. Critical Evaluation Information - Kathy Schrock's Guide for Educators, Discovery School
    With the advent of the World Wide Web and the huge amount of information it contains, students need to be able to evaluate a Web page for authenticity, applicability, authorship, bias, and usability. To help teachers get students started with this process, ...more>>

  23. Critical Issues in Mathematics (NCREL) - Pathways to School Improvement
    Articles from the North Central Regional Educational Laboratory (NCREL). The Significance of the NCTM Standards; Ensuring Equity and Excellence in Mathematics; Locating, Using, and Integrating Internet-Based Mathematics Materials; Providing Hands-On, ...more>>

  24. Critical Thinking Books and Software
    Critical thinking books and software for home and classroom for use in mathematics, science, language arts, social studies, and more. Search for Content Area Mathematics from the classroom catalog or the home catalog. ...more>>

  25. Critical Thinking Puzzles - Eldhose
    Puzzles, logical thinking riddles, word problems in blog format. Comment with your solution and read others' workings. ...more>>

  26. Critic of Technology in Schools Faces Tough Audience - Pamela Mendels
    From the New York Times column on Education, an April 1998 report on public opinion of the views of Todd Oppenheimer (author of "The Computer Delusion", which apperared in the Atlantic Monthly magazine), from a public meeting concerning technology in ...more>>

  27. CROC'Sciences: le net.magazine de la pédagogie des sciences - P. Lambert
    Un mensuel faisant le tour des sites scientifiques d'intérêt pédagogique, soit pour la construction d'un cours, soit pour les élèves eux-mêmes. Chaque numéro comporte 6 catégories: Mathématiques, ...more>>

  28. Crop circles: Theorems in wheat fields - Ivars Peterson - Science News Online
    Patterns of circles and triangles surreptitiously flattened into the crops of southern England reveal the perpetrators' sophisticated knowledge of Euclidean geometry. ...more>>

  29. Cross-Age Tutoring - Marah Fortson; Math Forum
    An annotated bibliography: articles to help teachers deal with a classroom of learners with different abilities, different strengths and weaknesses, who are at different levels academically, behaviorally, and socially. The task of the teacher is a challenge, ...more>>

  30. Cross Number Puzzles - Rainer Typke
    Cross number puzzles to solve online; log in to create your own. Also known as crossfigure, figure logic, or numberlock puzzles, cross number puzzles require numbers instead of words to complete a crossword-like grid. ...more>>

  31. Crossroads in Mathematics: Standards for Introductory College Mathematics Before Calculus - American Mathematical Association of Two-Year Colleges (AMATYC)
    A searchable book on the Web that addresses the need to establish standards for the mathematics programs that bridge the gap between high school mathematics and college calculus. It also aims to satisfy the needs of students who do not plan to study calculus. ...more>>

  32. CRUX Mathematicorum with Mathematical Mayhem - Canadian Mathematical Society
    The Digital Supplement to the Canadian Mathematical Society's Problem Solving Journal, for those who practice or teach mathematics. Published eight times per year, the materials at this site are available to all subscribers of CRUX; a sample issue is ...more>>

  33. Cryptarithmetic Puzzle Solver - Naoyuki Tamura
    Enter a cryptarithm or select an example, such as SEND + MORE = MONEY. Also, puzzle generators based on themes such as color names, fruits, vegetables, and numeral words in English, French, German, Spanish, and Italian. ...more>>

  34. Cryptarithms - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    Cryptarithms are brain teasers obtained when digits in numerical calculations have been replaced by letters. Customarily, distinct letters stand for different digits. Another term, Alphametics, denotes cryptarithms in which letters form meaningful words, ...more>>

  35. Cryptarithms Online - Jorge Soares
    Mathematical puzzles in which the digits are replaced by letters of the alphabet or other symbols. Brain-teasers by the author; cryptarithms from the journal Sphinx; a primer; books on cryptarithms, and links to relevant sites on the Web. ...more>>

  36. The Crypto Drop Box of the American Cryptogram Association - Jerry Metzger
    The American Cryptogram Association (ACA) is a nonprofit volunteer organization devoted to disseminating cryptographic knowledge. Members make up and solve their own creations strictly for the fun of it. Every two months, the ACA journal, The Cryptogram, ...more>>

  37. A Cryptographic Compendium - John Savard
    A book about cryptography with information about a large number of cipher systems and a limited coverage of cryptanalysis. It is mostly concerned with the various kinds of ciphers people have used and only mentions a few things about breaking ciphers. ...more>>

  38. Cryptography A-Z - SSH Communications Security
    An introduction to the basics of cryptography: Basic Terminology; Basic Cryptographic Algorithms; Digital Signatures; Cryptographic Hash Functions; Cryptographic Random Number Generators; Strength of Cryptographic Algorithms; Cryptanalysis and Attacks ...more>>

  39. CrystalMaker
    A Macintosh program to display and manipulate all kinds of crystal structures. Using the free companion program, CrystalDiffract, CrystalMaker files can be used to generate x-ray and neutron powder diffraction patterns. Main features: In "Photo-Colour" ...more>>

  40. CS Bits & Bytes - The National Science Foundation
    CS Bits & Bytes highlights innovative computer science research, often at the intersection with other disciplines, and includes profiles of the individuals in the field, links for further exploration, and interactive activities. Past issues of the ...more>>

  41. C++ Simulator of a Turing Machine - Alex Vinokur
    A program that simulates the deterministic and nondeterministic multitape Turing Machine. The following demo Turing machines are demonstrated with using the C++ Simulator: an addition program deterministic, 1 tape), an addition program with marker (deterministic, ...more>>

  42. CSMC: Center for the Study of Mathematics Curriculum
    An NSF-funded project serving the K-12 educational community by focusing scholarly inquiry and professional development around issues of mathematics curriculum. Major areas of work include understanding the influence and potential of mathematics curriculum ...more>>

  43. C.T.J. Dodson - Christopher Dodson
    Dodson provides notes and Maple or Mathematica packages for many different mathematics courses, including algebra and pre-calculus, calculus, differential equations, using computers for mathematics and statistics, and an introductory course on curves, ...more>>

  44. The CTK Exchange - Interactive Math Miscellany and Puzzles, Alexander Bogomolny
    A page devoted to questions and answers concerning Bogomolny's pages and math in general. Postings are approved by Bogomolny, and usually answered by him, although they may be answered by the general public as well. Posting topics vary all the way from ...more>>

  45. CTK Math Games for Kids - Interactive Math Miscellany and Puzzles, Alexander Bogomolny
    This site presents a collection of Java-based interactive games and puzzles with mathematical contents and a few practice exercises disguised as games. Alexander Bogomolny, the site's author, writes, "There are a few games whose purpose is to allow for ...more>>

  46. Cube Roll - Cary and Michael Huang
    Use the arrow keys to steer a cube along a path of squares towards a final square. Each successive level poses new restrictions based on which faces of the block can or cannot roll onto the square path, making a game out spatial thinking of polyhedral ...more>>

  47. Cubes of Perfection - Ivars Peterson (MathTrek)
    ...Six is the smallest perfect number. Twenty-eight comes next. Its proper divisors are 1, 2, 4, 7, and 14, and the sum of those divisors is 28. Incidentally, if the sum works out to be less than the number itself, the number is said to be defective ...more>>

  48. Cubeworld - Hank Gross
    Cubeworld: an adventure in solid geometry. This book, with 21 illustrations by the author, is in the tradition of Edwin Abbott's classic Flatland and explores what might happen if the Earth were transformed into a cube. Gravity is different, rain falls ...more>>

  49. Cubic and Quartic Equations - Math Forum, Ask Dr. Math FAQ
    General solutions to cubic and quartic polynomial equations. ...more>>

  50. Cubic surfaces - MacTutor Math History Archives
    Linked essay on the history of surfaces of order three. ...more>>


 
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