 Mean, Median, Mode, etc. (SMILE)  Charlotte Goldwater, Kenwood Academy
A lesson for grades 412 designed to teach students to generate their own data and then analyze their information, teaching such concepts as mean, mode, and median; histogram; bar graph; probability; and circle graph. From the Probability and Statistics
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 Mean, Median, Mode, Range  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about mean, median, mode, and range, such as "When is it appropriate to use the arithmetic mean, and when the geometric mean?"
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 Measurement Conversions  ConvertValues.com Measurement Conversions
A simple tool for converting different measurement units: length, area, volume, weight, mass, time, temperature, speed, force, power, and more.
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 Measurement Converter  Entisoft Units; ConvertIt.com, Inc.
Many online calculators require a Javacapable browser. Here's one that doesn't, and will perform over 500 different unit conversions for distance, area, volume, mass, speed, temperature, pressure, energy, power, force, etc. And when you convert, say,
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 Measurement of Volume (SMILE)  Richard Murray, Gage Park High School
A lesson designed to teach students to measure the volume of a clear container; use a stop watch; and estimate the volume of a container using proportions. From the Geometry and Measurement section of a collection of almost 200 single concept lessons
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 Measurements Converter  Sergey Gershtein
JavaScript conversions in the following categories: weight, capacity and volume, length, area, speed, pressure, temperature, circular measure, and time. [Do not use this converter if you need precision calculations.] You will need a Javacapable browser
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 Measurement Units Translation  Sergey Gershtein, UralRelcom, Ltd.
Javascript converters for weight, capacity and volume, length, area, speed, pressure, temperature, circular measure, and time.
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 Measurement  What Is It? (SMILE)  Claudy E. Chapman, Hartigan School
A lesson designed to teach students practical reasons for measurement; the use of various tools for measurement; how and why those tools might be chosen and/or designed; and the need for uniformity and agreement on definitions of measurement. From the
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 The Measurers: a Flemish Image of Mathematics in the Sixteenth Century  Museum of the History of Science, Oxford
From a 1995 exhibition centered around an unusual and important painting in the Museum's collection, known simply as 'The Measurers' (Antwerp, late 16th century). The painting depicts a range of practical activities, foremost among them mathematical instrument
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 Measuring an Angle  NASA Lewis Learning Technologies Project
What is the measure of the angle shown? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test.
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 Measuring Centimeters  NASA Lewis Learning Technologies Project
If a pencil were 7.5 centimeters long, where would its point end on this centimeter ruler? A diagram and a detailed answer are provided. From NASA's 9th Grade Math Proficiency Test.
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 Measuring for Cookies (SMILE)  Sally J. Hill, Roberto Clemente Community Academy
A lesson designed to teach students to measure ingredients using standard and metric measuring utensils; read envelope contents and follow directions in sequential order; and make a batch of chocolate chip cookies. From the Practical and Applied Math
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 Measuring Temperature, Adding Degrees  NASA Lewis Learning Technologies Project
From the thermometer reading below, about how many more degrees must the temperature rise to reach 50 degrees? A detailed answer is provided. From NASA's 9th Grade Math Proficiency Test.
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 Measuring Up, Prototypes for Mathematics Assessment  National Academy of Sciences
An electronic version of Measuring Up, a book on assessing students in accordance with the NCTM math standards by the National Research Council that provides examples of problems students should be able to solve at a fourth grade level and insights on
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 Measuring What Counts: Executive Summary  MSEB, National Research Council
"'You can't fatten a hog by weighing it,' said a farmer to a governor at a public hearing in order to explain in plain language the dilemma of educational assessment. To be useful to society, assessment must advance education, not merely record its status...."
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 Measuring with Two Containers  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about using two different containers to measure out a third quantity, such as "How can you measure 7 liters using only 4liter and 9liter pails?"
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 Mechanical calculators  Gerold Beckers
Mechanical calculators in the author's private collection and the museum of the faculty of Geodesy, TU Delft, the Netherlands. The calculators are catalogued according to the working principle. Contents include: Napier's rods or bones, abacus and slide
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 Mechanisms by Tchebyshev  Mathematical Etudes Foundation
Archival photographs, reproductions, and computer animations of Tchebyshev's machines: plantigrade machine; mechanism for transforming rotation into translational motion; paddling mechanism; wheelchair; paradoxical mechanism; mechanism for transforming
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 Media4Math
Free algebra and geometry videos, PowerPoint presentations, Promethean Flipcharts, critical thinking activities, workedout examples, and other media resources. An initiative of Emmy awardwinner Edward de Leon, executive producer of "Greatest Inventions
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 Median  Don Steward
Blog by a maths teacher influenced by Hans Freudenthal. A fan of unicase, Steward teaches 1016 yearolds in Shropshire (UK). His posts, which date back to November, 2007, have included "loooooong multiplication  grid method," "two reversal problems,"
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 Medicine and Mathematics  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about medicine and mathematics, such as "How do doctors use math?"
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 Medieval Harmony  Ivars Peterson (MathTrek)
Harmonic numbers. The history of mathematics contains many gems of mathematical reasoning and thought. At a Mathematical Sciences Research Institute meeting last October, number theorist Hendrik W. Lenstra Jr. of the University of California at Berkeley
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 MEECAS  Mathematics Educators Exploring Computer Algebra Systems, Inc.
Mathematics Educators Exploring Computer Algebra Systems (MEECAS) seeks to encourage active interest in the use of computer algebra systems (CAS) and related technology in schools; to improve learning of mathematics; to influence curriculum, assessment,
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 megaConverter.com  BenCam InterMedia
megaConverter.com is an evergrowing set of weights, measures and unit conversion/calculation modules. Spin a dial to select the kind of unit to convert: ancient lengths, volume, weight; angles; area; astronomical distance; bases  dec/hex/oct/bin; density;
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 MegaPenny Project  Kokogiak Media
What would a billion (or a trillion) pennies look like? Find out here, in pages listing data on one to one quintillion pennies. All the pages have tables at the bottom, listing things such as the value of the pennies, size of the pile, weight, and area
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 Mega TicTacToe  Paul Nahay
A Java applet that plays TicTacToe, Connect Four, Gomoku, and hundreds of customizable original variants.
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 Members & Activities (AMS)  American Mathematical Society
Includes information and resources on Membership in the AMS (becoming a member, individual, institutional, associate, and corporate membership, FAQ); Membership Benefits (Membership List, eMail Forwarding, Meetings and Conferences, Notices, Bulletin);
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 Memory, Mental Arithmetic, and Mathematics  MacTutor Math History Archives
All the mathematicians whose biographies are given in the MacTutor archive exhibited extraordinary mental powers. This article examines a few mathematicians who showed extraordinary powers of memory and calculating, together with a number of people who
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 The Menelaus Theorem  Cut the Knot!, Alexander Bogomolny
Ceva's and Menelaus' theorems compared and two proofs of the latter. An interactive column for MAA Online that uses a Java applet to simulate a puzzle or mathematical problem, one not stated directly since the applet is intended to be such that the right
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 Mental Agility  Ian McLean
Downloadable resources for Windows to assist with the development of numeracy. Loop games and powerpoint presentations on CDROM are key features. Games at Maths Levels C, D, and E.
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 Mentalmath  EUDACTICA
Makers of superTmatik mental math cards, and organizers of the International Mental Math Championship, which has developed number and calculation skills in children ages 615 since 2006.
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 Meredith Mathematics & Science Institutes  Meredith College
Residential professional development opportunities that focus on the "big ideas" of mathematics content for preK through high school. Learn about institute highlights, read testimonials, register, and more. MMSI and the creators of the game 24®,
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 Meridian: A Middle School Computer Technologies Journal  NC State University (NCSU), Raleigh, NC
An online publication designed to introduce educators to the reality and possibilities of applying the latest technology to teaching and learning in the middle school classroom. Meridian's structure is modeled after the interdisciplinary, multimodal structure
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 Meridian Math Software  Meridian Creative Group, Larson Texts, Inc.
A publisher of supplemental educational math materials for students in grades K8, offering a range of comprehensive, interactive, math software programs: Larson's Excel @ Algebra; Middle School Math; Leapfrog Math (K2, 36); Larson's Sliding GeoBeads,
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 Mesopotamian Mathematics  Duncan J. Melville, St. Lawrence University
The origins of mathematics in Mesopotamia from the earliest tokens, through the development of Sumerian mathematics to the grand flowering in the Old Babylonian period, and on into the later periods of Mesopotamian history. Organized into background;
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 Metacognition (Learning and Mathematics)  Alan Schoenfeld; Math Forum
In his 1987 book, Cognitive science and mathematics education, Schoenfeld wrote a chapter called "What's all the fuss about metacognition?" in response to a challenge from mathematicians (among them Joe Crosswhite, Henry Pollak, Anna Henderson, and Steve
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 metarith
metarith challenges you to add, subtract, multiply, divide, exponentiate, and basechange your way to a target value. Similar to the 24 game, this JavaScript lets you choose the countdown clock you race against, the size and sign of the quantities it
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 Meters Squared or Square Meters?  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about the difference between saying "units squared" and "square units," such as "What is the difference between 10 square miles and 10 miles square?"
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 A Method of FrontEnd Arithmetic (SMILE)  Eddie Newton, Carver Area High School
A lesson for grades 312 designed to teach students to transfer computational fatigue from the most significant to the least significant columns; eliminate carryovers and their errors; and use one or more of the fundamental laws of commutation, association
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 Metric and English Unit Conversions  Science Made Simple, Inc.
Convert between different unit measurements, both English and metric: area, length, temperature, time, volume, weight, or fruit (apples to oranges).
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 Metric and Imperial Conversion Calculators  Conversion4u.com
Convert temperatures, weights, lengths, areas, volumes, speeds, and times from metric to imperial or vice versa.
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 METRICATION: Just say, NO!  Thought You Should Know (TYSK)
TYSK opposes the forced implementation of the metric system on the American populace on three basic levels: practicality, functionality, culturally. News, Articles, Links.
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 Metric Conversions
Online metric conversion calculators for length, area, volume and weight along with some of the units origins and some conversion tables for printing.
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 Metric Mania Lessons  Tracy Trimpe
This lesson unit includes labs on length, mass, volume, density, and temperature, as well as conversions (metric to metric and metric to English). The labs give students many opportunities to work with rulers, triplebeam balances, and other science equipment
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 Metric Measurements  Math Forum, Ask Dr. Math Common Question
Tables of metric measurements for length, volume, mass, and weight, with equivalences, prefixes, and abbreviations.
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 Metrics Matter  ThinkQuest Junior
A simple introduction to the metric system, starting with a basic explanation of how the metric system works. Read about the metric system in relation to other methods of measuring, and learn how to measure time, length, volume, mass, and temperature.
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 Metric System and Unit Conversion  R. H. Logan, Dept. of Chemistry, Dallas Co. Community College, North Lake College
Advantages of the metric system: it was based on a decimal system (i.e.: powers of ten) and therefore simplifies calculations; it is used by most other nations of the world, and therefore has commercial and trade advantages. If an American manufacturer
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 Metric System: a WebQuest for 710 grade Science  Deborah L. Folis
A project that covers the history of the metric system, symbols, prefixes, and unit conversions. Comparisons are made using the history of the U.S. System and the Metric System. Common measurements and units used in Physics are also found, and a better
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 The Metric System (SI): A Concise Reference Guide  David Bartlett
Accurate but concise information intended to clarify the mysteries of the Système International d'Unités (SI), for both the layman and the expert. Introduction, a brief history, the base and supplementary units, derived units, SI prefixes,
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 Metric Unit Conversion  GlobeFeed.com
Online metric unit conversion calculators for the units of weight, length, temperature, volume and area.
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