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  All Sites - 4701 items found, showing 3151 to 3200

  1. Numb3rs Math Activities - Cornell Department of Mathematics
    Notes and activities on the mathematics behind each CBS television broadcast of the FBI crime series NUMB3RS, from the pilot episode through season five: Uncertainty Principle, Sniper Zero, Dirty Bomb, Assassin, Toxin, Backscatter, Two Daughters, Burn ...more>>

  2. NumberADay - The Mathematical Association of America (MAA)
    Every working day, a new positive integer, with a selection of its properties and an illustration or photograph. ...more>>

  3. Number and Word Puzzles - Ken Egan
    Number and word puzzles, including Digicross, in worksheet and interactive (Java) format. ...more>>

  4. Number Bases - Math Forum, Ask Dr. Math FAQ
    What is base 10? Binary? Hexadecimal? How can you convert from one base to another? ...more>>

  5. Numbercrunch - Simon Pampena
    Through school assemblies and other shared learning experiences, Numbercrunch "inspires students by combining energetic stand-up comedy with mathematics." Believing that "doing maths takes a lot of heart (and a sense of humour)," writer and performer ...more>>

  6. The Number Empire - Vitalii Vanovschi
    Enter a positive integer up to 10^12, press the "Go!" button, and The Number Empire states -- in yes/no format -- whether you entered a prime number, a Bell number, a Catalan number, or a factorial. The same single click displays the integer written out ...more>>

  7. Number Facts - Math Forum, Ask Dr. Math Common Question
    A list of sites with facts, curiosities, trivia, and other information about individual numbers. ...more>>

  8. A Number Game - Zusheng Rao
    Imagine this interesting game. Given 9 numbers (1,2,3,4,5,6,7,8,9), can you make a number like 1997 by using these numbers and + - * operations without changing their positions? This applet can tell you: put 9 in the column corresponding to "Max Number" ...more>>

  9. Number Glossary - Math Forum, Ask Dr. Math FAQ
    What are abundant, amicable, deficient, figurate, happy, narcissistic, palindromic, perfect, polygonal, proper divisors, semiperfect, sociable, square, tetrahedral, triangular, and weird numbers? ...more>>

  10. Number Gossip - Tanya Khovanova
    Searchable database up to the number 10,000. Checks more than 40 fun predefined properties of numbers, and shows many original and unique properties of an input number. See also this math coach's math blog, lectures, and more from her home page. ...more>>

  11. Number Guessing - Interactive Mathematics Miscellany and Puzzles, Alexander Bogomolny
    Think of a number and answer a few questions posed by the computer. After a while the compter will announce your number. The trick is based on a special card design whose variations appeared more than a hundred years ago. ...more>>

  12. Numbering Systems and Place Values - John Knoderer, The MazeMan
    Primarily a page about large numbers. Topics covered include: Place Values, ones up to trillions; Place Values, tenths down to trillionths; the American Numbering System; Googol and Googolplex; and the British Numbering System. ...more>>

  13. Numberland - Count On
    Number facts and trivia for the numbers 1-100. Click on a number from a square to go to a page about that number. ...more>>

  14. numbermaze - Mike Reilly & Jenks Norwalk
    A Sudoku-like maze puzzle that uses the number pattern from a clock face, one through twelve. Link these numbers in either direction –- clockwise or counterclockwise -– through the maze to solve the puzzle. Read complete rules, path strategy, hints, and ...more>>

  15. NumberNut.com - Andrew Rader Studios
    Introductions to shapes and colors, counting numbers, addition, subtraction, multiplication, division, order of operations, dates and times, number types, fractions, decimals, percents, estimation and rounding, ratios, money math, factors, graphs and ...more>>

  16. Number Of
    "You ask, we count": NumberOf.net answers questions that begin "How many ...?" All entries appear in paragraph form that follow a stock template, and link to references. Science entries have enumerated on numbers of breaths per minute, edges on a cylinder, ...more>>

  17. Number Patterns - Harvey Heinz
    A brief description of why mathematics is often called the science of pattern followed by examples of a variety of magic squares of various types; examples of orders 5 to 12d magic stars, and selections from Heinz's collection of over 400 number patterns ...more>>

  18. Number Patterns in Pascal's Triangle (SMILE) - Ulysses Harrison, Dunbar Vocational High School
    A lesson for grades 5 and up designed to enable students to recognize the integers, rows, and columns that comprise Pascal's Triangle. The main objective of the lesson is to enable students to reproduce the first eleven rows of Pascal's Triangle by recalling ...more>>

  19. Numberphile - Brady Haran
    Playful primer videos "about numbers and stuff," typically less than ten minutes long. Watch mathematicians talk about Benford's Law, favourite numbers (in response to a poll conducted by Alex Bellos), spaghetti numbers, Curta calculator, vampire numbers, ...more>>

  20. Numberplay - The New York Times
    Mathematical, logical and scientific puzzles, with solution "recaps." The posts, by Gary Antonick and Pradeep Mutalik, have included "Surreal Hat Tricks," "The Puzzles of Pickover," "Prime Rib at Hogwarts," "Nim for (a) Change," "Phi - The Magic and the ...more>>

  21. Number Puzzles - Erich's Puzzle Palace; Erich Friedman
    Three crossword-grid style puzzles, with numerical operations filled in. Can you fill in the numbers that work? Answers provided. ...more>>

  22. NumberQuotes - Steve Duncan
    Enter some digits, and get data containing that number to help put that figure in perspective -- or to just associate it with a fun factoid. Learn what cities have your number as a population, or about its purchasing power in dollars. Many five-digit ...more>>

  23. Number Sentences - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about number sentences and other puzzles involving order of operations, such as Four 4's and making 24. ...more>>

  24. Number Server - Ben Coffey
    A REST-like service offering a variety of data for decimal and binary numbers: enter a number and get its sine, cosine, tangent, natural logarithm, square root, square, cube, binary, hexadecimal, octal, the single-digit sum of the digits, and more. Output ...more>>

  25. Numbers from 1 to 10 in Over 4000 Languages - Mark Rosenfelder
    Click on the map to move to the languages for that area, or select from: Indo-European, Dravidian, and minor European languages; Afro-Asiatic, Caucasian, Nilo-Saharan, Kordofanian, and Khoisan languages; Niger-Congo languages; Uralic, Altaic, Tai, Austro-Asiatic ...more>>

  26. Numbers from One to Thirty-One: A Page for Each Day of the Month - Richard Phillips, Shell Centre for Mathematical Education
    Trivia about the calendar numbers one through thirty-one. Based on the book Numbers: Facts, Figures and Fiction, which answers questions such as how Room 101 got its name, what you measure in oktas, and which number links Alice in Wonderland, rainbows ...more>>

  27. Numbers in the World (Math Chat) - Frank Morgan, MAA Online
    Select the best occurrence in the world of each number from 1 to 10. For example, 12 is the number of eggs in a dozen or the number of months in a year... with winning reponses. Also: Math Chat has received a number of mathematical jokes, most of them ...more>>

  28. Numbers (Mathematics Archives) - University of Tennessee, Knoxville (UTK)
    Links to sites about particular numbers; dates; palindromes; Gaussian integers; Carmichael numbers; continued fractions; e; Egyptian fractions, mathematics, and numerals; constants; Fermat; Fibonacci numbers; pi; large numbers, sequences, prime numbers, ...more>>

  29. Number Strings - Imm, Kara; Lambert, Rachel; et al.
    A place to find new strings, post strings, get feedback on design or number choice, and discuss the pedagogy of number strings, a classroom routine based on "sets of related math problems, crafted to support students to construct big ideas about mathematics ...more>>

  30. Number Theory (Mathematics Archives) - University of Tennessee, Knoxville (UTK)
    An extensive list of links to sites with information about number theory, classified by level and type of resource. ...more>>

  31. Number: What Is "How Many"? - B. Sidney Smith; Math Academy Online/Platonic Realms
    A "mini-text" introducing fundamental concepts in elementary number theory and the foundations of mathematics. Includes discussions of basic set theory; natural numbers; integers; rational, irrational, and real numbers. Also gives a brief list of suggested ...more>>

  32. Number World - David Geistert
    Key in any positive integer less than 10^15 and press the "Look up" button for properties about it: factorization, divisors, cross sum, equivalence in multiple bases, and more. Number World's math tools include an equation solver, an equation system solver, ...more>>

  33. NUMDRUM - John T. Harrison
    The "Numdrum" helps children understand addition, subtraction, and other fundamental arithmetic concepts. An alternative to the number line and the 10 x 10 number square, this "decimal helical number line" lists integers around a tube, ten to a turn, ...more>>

  34. numeracy - Adult Numeracy Network, Math Forum
    A mailing list for those interested in the discussion of educational issues around adult mathematical literacy (ABE/GED/ESL, workplace, and literacy teachers, tutors, and adult learners), maintained by the Adult Numeracy Network (ANN). Read and search ...more>>

  35. Numeracy and Quantitative Literacy - EXTEND - Perspectives in Mathematics Education
    Links to articles on diverse views on the quantitative demands of today's society and the relation of quantitative literacy to mathematics education. ...more>>

  36. Numeracy Games - James Barrett
    Flash games in number facts (including funky mummy and brilliant beadstring), counting (funny fingers and duck shoot), bridging through 10 (techno tortoise and +/- number lines), time (hickory dickory and fairy clock), shape and measures (shifting shapes), ...more>>

  37. Numeracy Helper - Educational Computing Support Services
    The prime function of this website is to provide software to support teachers and students in the classroom or at home. There are over 75 free interactive on-line numeracy modules (Year 1 to year 9) with printable work sheets plus answer sheets. There ...more>>

  38. Numeracy Hour Activities - Ambleside Primary School on the Web
    Games designed by or with children, and interactive teaching programs to download. Games and activities include Amblegraph (create simple bar charts online); Online Calculator; Analogue Clock (a time teaching tool); Table Trees (multiplication tables); ...more>>

  39. Numeracy in the News - The Mercury/University of Tasmania
    Newspaper articles collected from the Tasmanian (Australia) metropolitan daily newspaper, The Mercury, to represent the five areas of the Chance and Data curriculum (Data Collection and Sampling, Data Representation, Chance and Basic Probability, Data ...more>>

  40. Numeracy Works - David Hartmann, Numeracy Works LLC
    Numeracy Works is a commercial software company which sells Tabula, a new tool for math education. Use Tabula to create, construct, cut, tape, fold, and transform. Make fold patterns, tiling patterns, tessellations, and perspective drawings. Also on ...more>>

  41. Numericana.com - Gérard P. Michon
    The online companion of Numericana, this site contains excerpts from Michon's book, including the entire glossary of scientific terms. Browse an index with pithy summaries, browse by popularity, or search nearly two hundred of his "final answers" of readers' ...more>>

  42. Numericon - School of Mathematical Sciences, University of Technology, Sydney, Australia (UTS)
    Mostly elementary presentations of: Numbers we've all heard of; Perfect numbers; Facts about prime numbers; Australian cricket's 25 leading all-rounders; Pythagorean triples; Pi in the sky; 73939133; and Fermat's Last Theorem. ...more>>

  43. Numeric Tests Solver - The IQ Challenge
    Enter an integer sequence, and this program attempts to determine the next number in the sequence. It is based on artificial intelligence algorithms. ...more>>

  44. Numerix Bee - Vel Micro Works Incorporated
    A math challenge game designed to develop children's interest, confidence, and fluency in mathematics through solving challenging problems while having fun. Register your school. ...more>>

  45. Nummňlt - Maurici Carbó Jordi
    Java applets: an area "workshop," which explains area and division by converting numbers in area units; an architect's toy blocks, with gravity; connecting and programming elementary logic (in the form of pipes with light bulbs signifying true sentences); ...more>>

  46. Nummòlt - Maurici Carbó Jordi
    Math teaching resources built by architects include base 10 block manipulatives; a block construction toybox; a logic construction toybox; an area workshop; and MathCats balance. See, in particular, Nummòlt's open-ended obbl & math toys: adding ...more>>

  47. The Nursing Files - Math - The Wayfarer
    Answers to nurses' questions about math, and formulas nurses are expected to know everyday. Learn about tables of equivalents, terms (measures of weight, volume, capacity, and length), dosages, ratio solutions, intravenous (IV) flow rates, percent solutions, ...more>>

  48. NYC HOLD - Bas Braams and Elizabeth Carson, editors
    Honest Open Logical Debate (HOLD) on Mathematics Education Reform addresses mathematics education in the New York City schools. Organized into Issues in Mathematics Education, Curriculum Reviews, Standards, New York City Issues, Call to Action, NYC News ...more>>

  49. Occurrence of the Conics - Jill Britton
    Real-world examples of occurrences of conic sections: ellipses, parabolas, and hyperbolas. ...more>>

  50. Odd Day - Ron Gordon
    Mathematical observations, original musings, news coverage, and cartoons in celebration of January 3, 2005 (1/3/5), July 9, 2011 (7/9/11), and other times when three consecutive odd numbers make up the date. Gordon, retired from teaching high school in ...more>>

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