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  All Sites - 4646 items found, showing 3701 to 3750

  1. The Role of Calculators in Math Education - Heidi Pomerantz, Bert Waits for USI/CPMSA
    This PDF article outlines the benefits of calculator use in mathematics classrooms from kindergarten through the university level, describing how calculators, when used appropriately, can be a tool for learning mathematics. The document has six sections: ...more>>

  2. Roles of calculators in the classroom - Pedro Gómez and Bert Waits
    The site contains the extended papers of the conferences presented in the Topic Group 18 of the International Congress of Mathematics Education held in Seville in July, 1996. Papers are presented both as web pages and as PDF files. ...more>>

  3. The Roles of Interest and Mathematical Beliefs in Preservice Teachers' Learning to Mentor Online [PDF] - Ray & Renninger
    Paper presented as part of a symposium, American Educational Research Association, Chicago, IL. A study of preservice teachers working with the Math Forum's Online Mentoring Guide. ...more>>

  4. Rolling a Die Until Every Face Has Appeared (Math Chat) - Frank Morgan, MAA Online
    How many times do you think you need to roll a normal die to be 90% sure that each of the six faces has appeared at least once? Why? Answer: It takes 23 rolls, as Al Zimmerman discovered in a computer experiment rolling 5000 dice until 90% of them had ...more>>

  5. Rolling and Learning® with tri-square dice - Creative Enterprises, Inc.
    A book describing math games to be played with 14-sided dice, suitable for grades K-6 or 8. Order form available on the web. ...more>>

  6. Rolling with Reuleaux - Ivars Peterson (MathLand)
    Why is the cover of a manhole round? The usual answer is that a circular lid, unlike a square or hexagonal cover, won't fall through the opening. The circle works because it has a constant width, defined as the distance between a pair of parallel lines ...more>>

  7. Rolocu: the Colour Twist Puzzle - Charles Edge
    Use logic and planning to put the pieces into place so that all rows and columns have all the colours in them. ...more>>

  8. A Romance With Numbers - K. Venkatasubramanian
    Biographical information and thoughts about Srinivasa Ramanujan, from The Hindu, December 24, 1993. ...more>>

  9. Roman Numeral Conversion - InnoVision Technologies
    Enter the Arabic number you want to convert to Roman, as long as it's less than 4000. ...more>>

  10. Roman Numeral Date Conversion Guide - Christopher Handy
    A guide to deciphering Roman numeral year dates as commonly found in both modern and early printed books, including a Java applet that accepts Roman numeral input in the range 1-4,999 and converts it to Arabic form. The page explains the basic principles ...more>>

  11. Roman Numerals 101 - Oliver Lawrence
    The Romans used only seven letters; the combination of a letter and its position could represent any number. They also used a line above the letter, so the numbering system actually represents our own very closely, with fourteen different symbols. The ...more>>

  12. Roman Numerals and Dates - Paul Lewis
    An illustrated introduction to Roman numerals, including Roman dates and calendar conversion, history and uses, a page on The Great 1999 Question, and a quiz. Three conversion tables are provided: Numerical 1-1449; Numerical 1450-2100; and Alphabetical ...more>>

  13. Roman Numerals Defined - Jim Loy
    A listing of some common Roman numerals and a short explanation of how they work. ...more>>

  14. Roman Numerals - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about Roman numerals, such as how they represented decimals and fractions; with memory aids for remembering what letter represents what value. ...more>>

  15. Roman Numerals - Math Forum, Ask Dr. Math FAQ
    Basics: How do I read and write Roman numerals? What are the rules for subtracting letters? How do I write large numbers? Web resources: introductions, charts, calculators, and converters. Calculations: Did the Romans use fractions? How can I use Roman ...more>>

  16. Ron Blond - Ron Blond
    Circle geometry applets to explore inscribed and central angles, tangents and radii, and tangents and inscribed angles. Also, applets illustrating the quadratic function (completed square and the discriminant), transformations of the sine and cosine functions, ...more>>

  17. Rose and Twinkleberry's Guide to Building Your Own Puzzles Using LEGO Building Blocks - Doug Walker
    Plans for making 32 classic puzzles using LEGO blocks. ...more>>

  18. Rosebush Math Line Puzzles - Math Forum
    Three puzzles: 1) plant 7 rosebushes so that they form 6 straight lines with 3 rosebushes in each line. 2) plant 10 rosebushes in 5 straight lines with 4 bushes in each line. 3) plant 19 rosebushes in 9 straight lines with 5 bushes in each line. Questions, ...more>>

  19. Rounding a Decimal - NASA Lewis Learning Technologies Project
    Round 12.5861 to the nearest hundredth. A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  20. Rounding Down? - Jim Loy
    This is an article about the difference between rounding and truncation, with some stories about the effects of rounding (or truncation) on computer programs. ...more>>

  21. Rounding Numbers - Math Forum, Ask Dr. Math FAQ
    How do you round a number to the nearest tenth (10th), hundredth (100th), thousandth (1000th), etc.? ...more>>

  22. Rounding Seconds - NASA Lewis Learning Technologies Project
    Erv ran the 110 meter high hurdles in 13.27 seconds. His teammate, Willie, ran the same race in 12.91 seconds. Rounded to the nearest tenth of a second, how much faster was Willie's time? A detailed answer is provided. From NASA's 9th Grade Math Proficiency ...more>>

  23. Route ICS (formerly DeweyWeb): Interactive Communications and Simulations - Univ. of Michigan
    An effort to link distant schools and expand the classroom experience: using telecommunications and computer conferencing, students can spend part of every school day in a "global classroom." Crossroads: The Route 12 Project is a grassroots attempt to ...more>>

  24. Roxanne Eckenrode's Storefront - Lulu.com - Free Self-Publishing - Roxanne Eckenrode
    Self-published math worksheets. Several are free. They are downloadable and printable; correct answers will spell out a message or fill in a puzzle. ...more>>

  25. Royal Tyrrell Museum of Palaeontology
    Virtual site for a science museum named for Joseph Tyrrell, who in 1884 travelled to what is now Alberta, Canada to study coal deposits and found the first dinosaur remains ("Albertosaurus") in the Drumheller area. The museum's mandate is to collect, ...more>>

  26. R. S. Schaeffer - Randy S. Schaeffer, Math & Computer Science, Kutztown University of Pennsylvania
    Schaeffer teaches a course called "Methods of Teaching Secondary Mathematics." Download the lessons created by his students that call on Geometer's Sketchpad, graphing calculators, and Microsoft Excel. Lesson topics address parallel lines, box and whisker ...more>>

  27. RU4Math
    Games and events for elementary-aged students from Pulaski and Montgomery counties, and Radford City schools, who participated in the RU4Math Fest of March 22, 2003, held at Radford University. Shockwave games about logic and simple equations, currency ...more>>

  28. Rubik's Cube Information - Michael Reid
    All about Rubik's Cube - even a mailing list. Site contents include: the Nederlandse Kubus Club; Rubik's cube pages on the Web; Cube books; Sources of cube-like puzzles; the author's notes, including an optimal cube solver; other Cube solutions on the ...more>>

  29. Rubik's Games - Androsoft
    Dedicated to the first PC CD-ROM game from Erno Rubik, Rubik's Games contains 5 sub-games: Rubik's Classic, Cover Up, Paint War, Rubik's Playground and ZigThrough. Download the Rubik's Games Web Site Plugin plug-in or a demo of the Rubik's Game CD-ROM. ...more>>

  30. Rubik's Online - Rubik/Seven Towns
    The official online site for the Rubik's cube. Play with the cube and other Rubik's games and puzzles online; find information on where to buy Rubik's products; use the forum to exchange views, opinions, comments, suggestions and anecdotes related to ...more>>

  31. Rubix Corner - Duane Cash
    The site includes information regarding the Duane Cash Cube Collection now featured at Hessport's Rubikshop in their "collectibles" section. New puzzles include the Rubik's Triamese, Fusion, Fusion+, SpeedFusion, 5x3, and 4x3 Cubes, which give those interested ...more>>

  32. Rudi Mathematici - Rudy d'Alembert, Alice Riddle, and Piotr R. Silverbrahms
    Matematica, giochi matematici, problemi, indovinelli e farneticazioni. Soprattutto una rivista, RM contiene Il Compleanno, Problemi del Mese, Bungee Jumpers, Soluzioni e Note, Quick & Dirty, Pagina 46, Paraphernalia Mathematica, Allegati ed Eventuali, ...more>>

  33. Russian Peasant Multiplication - Math Forum, Ask Dr. Math FAQ
    What is Russian peasant multiplication? How do I use it? Why does it work? How is the Russian peasant algorithm connected to binary numbers? ...more>>

  34. Russian School of Mathematics
    An after-school math enrichment program "based on the best practices of advanced math schools in Russia and Europe and adapted to the US educational environment." Co-founded in 1997 by Inessa Rifkin and Irina Khavinson — who recall that, in the ...more>>

  35. Sabermetrics - The Baseball Archive
    "The search for objective knowledge about baseball." Read a primer of Bill James' findings, or David Grabiner's manifesto on Sabermetrics. Studies address minor league equivalencies ("Are minor league stats a good precictor of major league performance?"), ...more>>

  36. SABES: System for Adult Basic Education Support - Massachusetts Department of Elementary & Secondary Education
    SABES promotes high quality adult basic education services through training, support, and resources that improve the skills and knowledge of practitioners and strengthen programs. SABES strives to achieve this mission by: providing staff development that ...more>>

  37. SACNAS Biography Project - Society for the Advancement of Chicanos and Native Americans in Science
    Highlights of the life stories and professional contributions of Native American, Chicano and Latino scientists, mathematicians, and engineers. The Project was created so that K-12 students could see themselves reflected in the stories of the lives that ...more>>

  38. Sacramento Area Math Help and Tutoring - Just Math Learning Centers
    Just Math provides math help, tutoring and SAT prep for Sacramento area children through college students. Skills training in elementary math, algebra, geometry, and calculus. ...more>>

  39. Sacred Geometry - Bruce Rawles
    "In nature, we find patterns, designs and structures from the most minuscule particles, to expressions of life discernible by human eyes, to the greater cosmos. These inevitably follow geometrical archetypes, which reveal to us the nature of each form ...more>>

  40. Sadlier-Oxford - William H. Sadlier, Inc.
    From the publishers of the textbooks Progress in Mathematics and Math Alive at Home in Spanish, activities and vocabulary, a primary glossary, and an intermediate glossary. ...more>>

  41. Safe-T Compass - Maddy, Maverick; James Garner
    A compass with no sharp points, flat enough to use as a bookmark in a high school geometry or algebra text and safe enough for a child. Draw circles from 1/4 in. to 10 in. in diameter with this new flat compass. $2 each, 2 for $3 postpaid. See also their ...more>>

  42. Sales Tax and Discounts (SMILE) - Denise Folk, Richard E. Byrd Academy
    A lesson for grades 6-8 designed to teach students that sales tax is an additional charge on products purchased; how to compute sales tax on different items using register tapes; that discount means to take a certain amount off the price of something; ...more>>

  43. Sales Tax (SMILE) - Allen Batts, Jr., Jane A. Neil School
    A lesson for grades 6-8 designed to teach students to understand and calculate sales tax on merchandise and food. From the Practical and Applied Math section of a collection of almost 200 single concept lessons by the Science and Mathematics Initiative ...more>>

  44. Salt Creek Investigation - Lacey-Anderson, Provus; Carl Sandburg Jr. H.S., Rolling Meadows, IL
    This interdisciplinary study of Salt Creek involves junior high students in the examination of authentic community problems. Through the use of technology and other community resources, students are introduced to water quality issues and develop proposals ...more>>

  45. Saltire Software
    Mathematical technology for industry and education. Saltire Software's core technologies are constraint-based interactive geometry systems, symbolic algebra, and optimization, with products for mechanical engineering, mathematics education and layout ...more>>

  46. SAM Learning - SAM Learning Ltd.
    U.K. exam revision (review) for A Levels (age 16-18), GCSEs (age 14-16) and SATs (KS3, age 11-14; KS2, age 7-11; KS1, age 5-7). Drag-and-drop exercises and online tests of math knowledge. ...more>>

  47. Sam Loyd Official Site - The Sam Loyd Company
    This site is dedicated to introducing Sam Loyd and his puzzles to a whole new generation. Loyd was a famous puzzle inventor in the 1800s, till his death in 1911. Puzzles with answers, descriptions of famous puzzles for sale, FAQs and other information. ...more>>

  48. SAMMO - Sinclair, Nathalie; Murphy, Pat; et al.
    Tools for exploring, creating, and doing mathematics. Sinclair's Java applets let middle school students explore appealing mathematical situations not normally included in school curricula while using fractions, ratios, decimal numbers, and other concepts ...more>>

  49. Sangaku - Hiroshi Kotera
    Click on the map of Japan to see photographs of sangaku -- Euclidean geometry theorems rendered as colored drawings on wooden tablets, and hung in shrines or temples -- dating to the Edo period (1603-1867). Also, learn how to use counting rods, called ...more>>

  50. Satlink - Missouri School Boards Association (MSBA)
    A monthly national magazine that serves as a guide to educational satellite teleconferences and programs concerning most K-12 subjects, including many math areas. These programs can be a source for new information or an additional resource for current ...more>>


 
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