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  All Sites - 2803 items found, showing 451 to 500

  1. Davitily Math Problem Generator - Nguyen, Ly; and Pardue, David
    Create worksheets and tests, including options for multiple choice, printable versions, and answer keys. Click to insert pre-worded questions in basic math, algebra, and geometry, the parameters of which vary randomly. Requires JavaScript. Also available ...more>>

  2. Daylight Savings Time - Jim Loy
    A short explanation of Daylight Savings Time in the United States. ...more>>

  3. Decimal Coins of the UK - Tony Clayton
    The change to decimal coinage: Decimalisation Day. D-Day was February 15th 1971. On that day the United Kingdom changed from the centuries old tradition of using 12 pence to the shilling and 20 shillings to the pound to a new decimal 100 new pence to ...more>>

  4. Decimal Places on a Number Line - NASA Lewis Learning Technologies Project
    Decimal places: On a number line, which of the following numbers would be the farthest to the right? 0.001, 0.0015, 0.00099, 0.0005. A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  5. Decision Development Corporation
    Software for K-12 students and teachers, for all platforms. Math software included separately and as part of other product lines. (Gigamath Playground and Junior Gigamath Playground offer word problem practice for ages 7-14 and 4-8 respectively; Ellen ...more>>

  6. Decision Making Information - Model Education Systems Associates: MESA, Inc.
    MESA specializes in the development, implementation and use of decision support systems and related quantitative information resources, especially quantitative tools for research, evaluation and policy analysis directed toward children and their living ...more>>

  7. Delaware State Data Center - Delaware Economic Development Office
    A focal point for the distribution of census information in Delaware and for the dissemination of other information from the federal government, state government and other sources, coordinating the use of census and other data for economic development. ...more>>

  8. Deliberative Discourse Idealized and Realized: Accountable Talk in the Classroom and in Civic Life - Sarah Michaels, Catherine O’Connor, Lauren B. Resnick
    An article in PDF format. Abstract: Classroom discussion practices that can lead to reasoned participation by all students are presented and described by the authors. Their research emphasizes the careful orchestration of talk and tasks in academic learning. ...more>>

  9. Demiregular Tessellations - Totally Tessellated
    Color renditions and a real example of a demiregular tessellation. Templates allow you to print renditions of each tessellation suitable for coloring activities. ...more>>

  10. The De Morgan Journal - London Mathematical Society
    The De Morgan Journal aims "to encourage academic mathematicians to reflect on current issues in mathematics education at all levels, from primary school to graduate studies; to encourage them to explore links between higher mathematics and elementary ...more>>

  11. Department of Science & Mathematics Education: Research and Development - Univ. of Melbourne, Australia
    Read faculty research and learn about their projects and interests: children's understanding of statistical and probabilistic concepts; the negotiation of meaning in mathematics & science classrooms (The Classroom Project); the expression of algorithms ...more>>

  12. Descartes 3 - Ministry of Education, Culture, and Sport, Spain
    Create interactive math lessons in web page format with this applet, or download any of more than 60 already created applets (ranging from "representing numbers on a straight line" to "tables and algebraic terms," from "geometry and a game of billiards" ...more>>

  13. Designing a Sustainable Standards-based Assessment System - Don Burger; Mid-continent Regional Educational Laboratory (McREL)
    Designing and implementing a sustainable standards-based system that consistently yields high student achievement involves more than setting and measuring academic goals. Changing to a standards-based system provides an opportunity to re-examine the ...more>>

  14. Designing Effective Professional Development: Lessons from the Eisenhower Program - U.S. Department of Education
    The second report of the National Evaluation of the Eisenhower Professional Development Program, Part B (State and Local Activities), a multi-year evaluation being conducted by the American Institutes for Research (AIR) under a contract with the U.S. ...more>>

  15. developer.com's collection of math Java applets - EarthWeb, Inc.
    A browsable, searchable collection of links, authors, notes, and details about Java applets contributed to developer.com. Software is organized into the categories of basics and children's, fractals, games and puzzles, general, geometry, plotting, graphing, ...more>>

  16. Developing Educational Standards for Schools - Charles Hill; Putnam Valley Schools, New York
    An annotated list of sites that have educational standards documents prepared by various states and professional organizations. View standards by subject area or U.S. state. There is a list of state education departments, and resource pages on: U.S. government; ...more>>

  17. Dictionary of Number Words - Intergalactic Power & Light
    A dictionary of English language words, phrases, prefixes, suffixes, and symbols that describe numbers. Cardinal Numbers, Ordinal Numbers, very large numbers, Noninteger Real Numbers, Numeric Ranges. ...more>>

  18. Didax Educational Resources
    Didax publishes and distributes books, manipulatives, and software for math, reading, science, and art. The site offers free demo software, product descriptions, information requests, technical support, and current national educational standards. Didax ...more>>

  19. Digital Generation Unit Conversions - Digital Generation
    Choose from 26 different categories of engineering and scientific units. Also available at http://www.webcom.com/legacysy/convert2/convert2.html and http://www.legacysy.com/~legacysy/convert2/convert2.html. ...more>>

  20. Digital Library: Science, Mathematics, Engineering and Technology Education (SMETE) - NEEDS
    This site contains a searchable working prototype of a National Science, Mathematics, Engineering, and Technology Education Digital Library; a prototype federated search for the math community and the American Mathematics Metadata Task Force (AMMTF); ...more>>

  21. Digital Library - The Exploratorium, San Francisco
    The Exploratorium A-to-Z. Archived webcasts, web cams, past exhibitions: stills, movies, sounds, and other experimental items. Online versions of a few of the Exploratorium's interactive exhibits; the Exhibit Cross-Reference - an experimental database ...more>>

  22. Digital Manipulatives: New Toys to Think With - Resnick, Martin, Berg, Borovoy, Colella, Kramer, Silverman; MIT Media Laboratory
    Manipulative materials such as Cuisenaire Rods and Pattern Blocks enable children to explore mathematical and scientific concepts such as number and shape through direct manipulation of physical objects. Resnick et al. have developed a new generation ...more>>

  23. Dipping math scores heat up debate over math teaching... - Bridget Murray, American Psychological Association (APA) Monitor
    ... psychologists differ over the merits of teaching children 'whole math'. An APA newsletter article that outlines the debate over the effectiveness of whole math, a demonstrative approach where manipulatives help children understand math concepts. "Some ...more>>

  24. Disabilities and Math Anxiety - Math Forum, Teacher2Teacher FAQ
    Answers to a frequently asked question: How can I help my child who has a physical or learning disability? ...more>>

  25. Discover Magazine - The Walt Disney Company
    The monthly magazine of science and technology. Covers space, biology, health, medicine, AIDS, computers, new technology, the environment, astronomy, ancient life, archeology, evolution, physics, mathematics, ecology, and more. Available online: selected ...more>>

  26. Discussing Undergraduate Mathematics Education on the Internet - Steve Weimar for MAA Online; The Math Forum
    Descriptions of good math discussion groups: what kinds of conversations you will find, how to access them, etc. Teaching and learning mathematics: MATHEDU, AMTE, MATHEDCC, DEVELOPMENTAL MATH. Topic-specific lists: MATH-HISTORY-LIST, AP-CALC, AP-STAT, ...more>>

  27. Discussions - Math Forum
    The Math Forum's discussions include mathematics and math education-related newsgroups, mailing lists, and Web-based discussions. Read recent and older messages, find out how to subscribe to a mailing list that interests you, read an MAA Online article ...more>>

  28. Distance Calculator Between Cities - Dan Gallagher
    Enter two cities or countries and this CGI illustrates them on a scaled political map, calculates the distance between the two locations in miles and kilometers, and provides information about latitude, longitude, bearing, and airports. All latitude and ...more>>

  29. Dividing 12-foot Boards - NASA Lewis Learning Technologies Project
    Lewis needs 1,500 boards to build a small rocket. Each board must be 3 feet long. If boards are sold in 12 foot lengths, how many boards must Lewis buy and cut into 3 foot pieces to get the 1,500 he needs? A detailed answer is provided. From NASA's 9th ...more>>

  30. Dividing Decimals - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about dividing decimals, including how to divide decimals with a remainder. ...more>>

  31. Dividing Decimals - NASA Lewis Learning Technologies Project
    Dividing decimals: What is 12.8 divided by .04? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  32. Dividing: Fractions and Mixed Numbers - NASA Lewis Learning Technologies Project
    What is 1 1/2 divided by 1/2? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test. ...more>>

  33. Dividing Fractions - Math Forum, Ask Dr. Math FAQ
    How do you divide fractions? Say, 2/3 divided by 3/4. ...more>>

  34. Divisibility Rules - Calculation Tips & Tricks, The Math Forum
    Tips for figuring out whether a number can be divided by the numbers 3-13, with a Spanish translation and an explanation of why the rules work by Robert L. Ward. ...more>>

  35. Divisibility Rules - Math Forum, Ask Dr. Math FAQ
    How can you tell whether a number is divisible by another number (leaving no remainder) without actually doing the division? Why do 'divisibility rules' work? ...more>>

  36. Divisibility Rules to 50 and Beyond - Stephen D.T. Froggatt; Math Forum, Ask Dr. Math FAQ
    A quick way of testing primality of larger numbers: the idea of deleting the last digit and adding or subtracting a multiple of the digit from the remaining number can be generalized to test for divisibility by prime numbers up to 50 and beyond. ...more>>

  37. Divisibility War - Diane Reed
    A game designed for secondary level students studying basic mathematics to use the divisibility tests to determine whether a number is divisible by 2, 3, 4, 5, 6, 9, and 10. ...more>>

  38. DLK MathsWork Software
    Self-differentiating, topic-specific math software for Windows 3.1 and above, on number, shape and space, and data handling. All of the practice modules have on screen monitoring at three levels. Six problem modules designed to improve users' application ...more>>

  39. The Doctor X Amazing Griddable Multiplication Contraption - Gordon Anderson
    Click a color from the left of this 10×10 JavaScript array, then paint the grey boxes with it to illustrate how rectangular area, multiplication, and the distributive property interrelate. As products color the grid, the column on the left dynamically ...more>>

  40. DO MATH...and you can do anything! - National Council of Teachers of Mathematics (NCTM)
    Features grade level-specific mathematical activities that children can do with their families and on their own, as well as links to other sites where children can explore the connections between math and some possible career paths. Also includes a family ...more>>

  41. Dominoes Activity - Suzanne Alejandre
    A classroom activity (similar to Pentomino + 1 = Hexomino; a variation on polyominoes) aligned to the NCTM and California Standards, to be explored through manipulatives (paper dominoes). Students explore whether it is possible to cover a 6x5 grid with ...more>>

  42. Doodal - Neil Thapen
    Draw fractals freehand using a computer mouse: select a "brush size" to specify width in pixels, then click and drag in the large orange frame, the contents of which get copied in however many blue frames you specify. To rotate a blue box, click it while ...more>>

  43. Double Division - Jeff Wilson
    Double Division is a method for doing manual division that reinforces the principles of division and gives students success with a less frustrating alternative. The online calculator shows and explains each step. Feedback from teachers who've used the ...more>>

  44. Doubling Pennies - Math Forum, a Classic Problem from the Ask Dr. Math FAQ
    Which is more, a million dollars or a penny doubled every day? ...more>>

  45. Downloads - Mac - Mathematics - CNET Download.com
    Search this site to find a particular piece of software for the Mac, or browse their mathematics listings. ...more>>

  46. Downloads - PC - Mathematics - CNET Download.com
    Search this site to find a particular piece of software for the PC, or browse their mathematics listings. ...more>>

  47. A Dozen Reasons Why Schools Should Avoid Filtering - From Now On (FNO)
    Why schools should not block access to particular sites: filters may not work very well;. they may work too well; they may increase attention to SMUT and spur motivation; their ongoing cost may block better programs from your students; they may create ...more>>

  48. Dragonfly Web Pages - Miami Univ. of Ohio with the NSTA
    Dragonfly is an inquiry-driven magazine published bimonthly during the school year, inspiring children to join with their peers and with scientists in national and international investigations. Dragonfly also publishes poetry, autobiographies, natural ...more>>

  49. Dr. Alfred Posamentier - Education Update, Inc.
    Blog by the Dean of Education at Mercy College (New York). Posamentier's Posts, which date back to August, 2010, have included "A Power Loop," "The Unusual Number Nine," "The Irrepressible Number 1," "Enriching Mathematics Instruction, Rather than Teaching ...more>>

  50. Dramatic Results
    This non-profit educational arts agency improves students' academic confidence and performance "by stimulating curiosity and fostering creativity through a hands-on, arts-based approach to learning." Dramatic Results specializes in curriculum that integrates ...more>>


 
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