 Square/Cube Roots without a Calculator  Math Forum, Ask Dr. Math FAQ
How do you find the square root of a number by hand? How about cube roots?
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 Square of the Hypotenuse  Ivars Peterson (MathTrek)
Some history of the legend of the discovery of the Pythagorean theorem: in his textbook The History of Mathematics, Roger Cooke of the University of Vermont describes how the Babylonians might have discovered the Pythagorean theorem more than 1,000 years
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 Square Root Calculator  Chris Misenheimer
This interactive square root calculator calculates the square root of positive, negative, imaginary, and complex numbers, rounded to seven decimal places. Short articles include "Square roots and area," "Square roots without a calculator," and "What does
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 Square Roots without a Calculator  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about square roots without a calculator, from the divideandaverage technique to Newton's method to the continued fraction algorithm (CFA).
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 Squares and Square Roots, 1100  Math Forum, Ask Dr. Math Common Question
A table of squares and square roots, 1100.
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 Squares in a Checkerboard  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about how many squares or rectangles there are in a checkerboard or in an NxN square.
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 Square Wheel (MatheMUSEments!)  Ivars Peterson (Math Muse for Kids)
A square wheel may be the ultimate flat tire. There's no way it can roll over a flat, smooth road without jolting the rider again and again. Stan Wagon, a mathematician at Macalester College in St. Paul, Minnesota, has a bicycle with square wheels. It's
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 Squaring the Circle  MacTutor Math History Archives
Linked essay covering the problem of squaring the circle in the form which we think of it today, which originated in Greek mathematics: given a circle, construct geometrically a square equal in area to the given circle. This article discusses the history
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 Srinivasa Ramanujan Aiyangar  S.Prasad
A short biography of Ramanujan, with links to related Web pages.
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 Srinivasa Ramanujan  Sociedad Andaluza de Educación Matemática THALES
Biografía de Ramanujan: Presentación; Formación; Trabajo; En Cambridge; Su obra; Bibliografía; Otras páginas de interés
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 SsgtMath  Ricardo Sinclair
Ten to fifteen minutelong whiteboard introductions to Common Core State Standards (CCSS) ideas, geometry constructions, proofs, precollege algebra, college algebra, and more.
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 SStreams: Mathematica  Andrzej Kozlowski, Ed.; eNoteBooks Ltd.
Links to Mathematicarelated books and publications; developer, consulting and training companies; jobs requiring Mathematica; programs and packages to download free or for a fee; Web resources; and a section on skills: people with Mathematica programming
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 Stack Exchange
A "free, communitydriven Q&A" for people studying math at any level, and professionals in related fields. Post to understand mathematical concepts and theorems, share hints on problems, talk about the history and development of math, solve mathematical
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 Standard Deviation, Part 1  Barbara Christopher
Can the standard deviation pick the most consistent set of numbers? or Which city's temperatures vary the least, San Diego or San Francisco? An interactive project in which students use the Internet to find statistical data for the mean, standard deviation,
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 Standard Deviation, Part 2  Barbara Christopher
Do cities closer to the ocean have more consistent temperatures? A followup to Standard Deviation, Part 1. Students use the Internet to gather temperature data from 3 cities; calculate the standard deviation and percentage error of the gathered temperatures;
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 Standards for School Science and Mathematics: Background, Purposes, Goals, Principles  Lynn Arthur Steen, St. Olaf College
A "sidebar" on background of the standards movement in science and mathematics
education prepared for the National Science Foundation's "Indicators" study for 1995. In 1994 Indicators of Science and Mathematics Education. Washington, DC: National Science
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 Standup Mathematician  Matt Parker
Parker uses funny presentations and handson activities to "make people more excited about maths." Watch videos of his comedy routines, including "Skills for bills," in which he introduces the notion of "standard meal units" for calculating each person's
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 Stardust Equations  Keith Devlin (Devlin's Angle)
On Sunday, February 7, at 4:04 PM, a Lockheed Martin Delta II rocket lifted off from Cape Canaveral carrying an unmanned spacecraft about the size of an office desk, having the romantic name of Stardust. If all goes well, on January 15, 2006, the spacecraft
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 Star Grades: The Best Tutor  Star Grades.com
Offers $20/hr online tutoring in multiple subjects, including SAT preparation. Package deals available.
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 StarLogo  Epistemology and Learning Group, MIT Media Lab
A programmable modeling environment for exploring the workings of decentralized systems. With StarLogo, you can model (and gain insights into) many reallife phenomena, such as bird flocks, traffic jams, ant colonies, and market economies. StarLogo is
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 StatApplet  Marcus Kazmierczak
A simple statistics program and a short outline of the underlying mathematics. The statistics applet calculates the sample mean and sample standard deviation, and constructs a 95 percent confidence interval for data values entered.
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 Statbag  Worth Swearingen
A blog repository for statistics educators: "... each teacher should have a bag of tricks. Teachers spend years developing their own favorites. While acknowledging that experience is the best teacher, one purpose of this site is to help teachers develop
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 State Institute of Statistics (SIS)  Republic of Turkey
The agency in charge of collecting statistics for the country of Turkey. Includes tables and charts of key social, economic, and environmental statistics and a dictionary of important statistics and economics terms arranged by subject. Some articles
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 State of the Art Mathematics  Carole B. Lacampagne; U.S. Department of Education
Transforming Ideas for Teaching and Learning: a book that identifies ten ideas for transforming mathematics teaching and learning backed up by research or by promising practical experience. Includes the online document, references, and suggested reading.
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 States.org, the States Inventory Project
The mission of the States Inventory Project is to build a comprehensive resource of infrastructure, initiatives and strategies for networking education, government and the public in each of the fifty United States. Funded by the NSF, it is a joint effort
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 Statiscope  Mikael Bonnier
Statiscope presents summarizing data and descriptive statistical charts. In the applet you can enter data manually or download data over the Internet. Charts included: Distribution, Probability mass, Density, Box plot, Stem & leaf; also other features
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 Statista  Statista Inc.
Statistics and other quantitative data on education, schools, employment, and hundreds of international industries, aggregated from more than 18,000 sources that include the Mendelsohn Affluent Survey, trade publications, scientific journals, and government
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 Statistical Assessment Service (STATS)
STATS is a nonprofit, nonpartisan resource on the use and abuse of science and statistics in the media. Its goals are to correct scientific misinformation in the media and in public policy resulting from bad science, politics, or a simple lack of information
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 Statistical Consultants Ltd  Dion Walker
Data analytics and other consulting services. See, in particular, the New Zealand company's blog, which dates back to 2010 with posts such as "Battle of Britain Casualty Data," "Gretl: A free alternative to EViews," "Life expectancy at birth versus GDP
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 Statistical & Data Analysis Software  NCSS Statistical Software
Statistical analysis in a format that imports and exports all major spreadsheets, databases, and statistical file formats.
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 Statistical Education through Problem Solving (STEPS)  STEPS TLTP Consortium
The STEPS consortium in the U.K. has developed problembased modules to support the teaching of Statistics in Biology, Business, Geography, (Windows) and Psychology (Windows and Mac). The software is freely available to educational institutions, and can
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 Statistical Office of the Republic of Slovenia (Statisticni Urad Republike Slovenije)  Andrej Cedilnik and Tomaz Valantic
The agency that collects statistics for the Slovenian government. Includes Slovenia in Figures, with comparison to other nations, information about the Statistical Office and the laws that regulate its activities, and a catalog of publications which
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 Statistical Rules of Thumb  Gerald van Belle
This companion website to Statistical Rules of Thumb, published by John Wiley & Sons, Inc., offers free PDFs of chapter two ("Sample Size") and more than a dozen "monthly rules of thumb," such as "Use Text for a Few Numbers, Tables for Many Numbers,
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 Statistician Jokes  Verhagen, Gregg
Material extracted from science jokes posted to rec.humor, sci.math, and a
few other Usenet newsgroups. 43% of all statistics are worthless; 3 out of 4 Americans make up 75% of the population; 80% of all statistics quoted to prove a point are made up
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 Statistics101: Resampling  John Grosberg
Software for statistics and probability, it can be used to teach concepts via simulation. It can also be used for real bootstrap, Monte Carlo and simulation applications. Runs on any platform supporting Java 1.4.2 or better.
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 Statistics Canada  Ottawa, Ontario, Canada
Canada's national statistical agency, which is required to collect, compile, analyse, abstract and publish statistical information on virtually every aspect of the nation's society and economy. Programs are organized into three broad areas: demographic
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 STATISTICS.COM
A source for information about statistics software (major packages like SAS, SPSS and SPLUS, shareware, and smaller packages), as well as about statistics analysis, data analysis, and short courses in statistics  messy data, design and analysis of experiments,
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 Statistics Demonstrations with Excel  Erich Neuwirth
Experimental examples, for which you must have installed Excel as a viewer for your Web browser (instructions are supplied). Correlation Visualized: See a data set with a given correlation coefficient, and change the correlation by moving a slider. Central
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 Statistics Every Writer Should Know  Robert Niles; Niles Online
Numbers can't talk, but they can tell you as much as human sources can. Here, described in plain English, are some basic concepts in statistics that every writer and reader should know. For beginners: Mean, Median, Percent; the next step: Per capita and
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 Statistics Faculty Lounge  John Wiley and Sons, Inc.
Links to statistics reference tools on the Web, popular statistics journals, today's newspaper, and sample chapters of Wiley's latest college texts, with brief descriptions and tables of contents.
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 Statistics Finland
The Finnish statistics office; includes news and press releases, important socioeconomic and election data, and publications, including a report on Finnish education. Finnish and Swedish versions also available, as well as Finlande en chiffres in French.
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 Statistics Glossaries  Math Forum, Ask Dr. Math Common Question
A selection of statistics glossaries on the web.
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 Statistics Glossary  Easton, McColl
Basic definitions; Presenting Data; Sampling; Probability; Confidence Intervals; Hypothesis Testing; Paired Data, Correlation and Regression; Design of Experiments and ANOVA; Categorical Data; Nonparametric Methods; Time Series Data; and an alphabetical
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 Statistics Greenland (Kalaallit Nunanni Naatsorsueqqissaartarfik/Grønlands Statistik)  Dorit Olsen
Information about Statistics Greenland, map of Greenland, and key socioeconomic figures. The Statistical Yearbook,with data and tables of cultural, economic, social, political, geographical, and climate information about Greenland, is available in PDF
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 Statisticshelpdesk.com
Subject overviews and tutoring services for statistics homework and programming in SAS, Minitab, R, SPSS, Matlab, Eviews, and Gretl.
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 Statistics Iceland
The statistics ministry of the government of Iceland. Key socioeconomic figures; press releases; monthly statistics in PDF format; methodological information. Site also available in Icelandic.
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 Statistics Indonesia (Badan Pusat Statistik)  Republic of Indonesia
The statistics collection department of the government of Indonesia. Glossary of statistical terms, key socioeconomic figures for Indonesia by subject and region, census results, methodology information, and links to regional offices. Recent economic
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 Statistics lessons using data on the Internet  Mathematics Department, University of WisconsinLa Crossse
Lesson plans for mathematics, science, and social studies secondary school teachers, which apply statistical analysis to data obtained from the Internet.
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 Statistics Lithuania
The agency that collects statistics for the country of Lithuania. The site includes: a timeline of statistics in Lithuania dating to 1528, tables of geographic, population, and economic data, press releases, list of recent publications  some may be
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 Statistics Netherlands
A government organization that collects, interprets, and presents information about Dutch society. Tables of key socioeconomic figures for the Netherlands; publications and press releases, which may be ordered or downloaded in PDF format; introduction
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