 Minnesota Council of Teachers of Mathematics (MCTM)
An affiliate of the National Council of Teachers of Mathematics (NCTM). The site provides information about conferences, events, and programs; membership; listings of recommended math sites; MCTM highlights (Presidential Awardees, Shape of Space video,
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 Minorities & Mathematics  Key Issues in Mathematics at the Math Forum
Find sites relevant to mathematics and minorities such as African Americans, Hispanics, and Native Americans in the Math Forum's Internet Mathematics Library.
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 Mirrors (Geometry and the Imagination)  Conway, Doyle, Gilman, Thurston; The Geometry Center
How do you hold two mirrors so as to get an integral number of images of yourself? Discuss the handedness of the images. Set up two mirrors so as to make perfect kaleidoscopic patterns. How can you use them to make a snowflake?...
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 Missing Dollar  Math Forum, a Classic Problem from the Ask Dr. Math FAQ
Three men go to stay at a motel, and the man at the desk charges them $30.00 for a room. They split the cost ten dollars each... where is the missing $1.00?
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 Mister Goodmath's 'Cool' Challenges of the Week  Mike Rooney; Welleby Elementary School, Sunrise, Florida
More than 30 challenge problems, with hints but no solutions. Join "Gator" and pack your bag for an incredible journey through real life challenges. The first problem listed on the menu is always the most current challenge being attacked by Welleby students
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 Misunderstood Minds  PBS
The science behind learning difference, and strategies to aid success in school, are available on this companion Web site for the Misunderstood Minds PBS documentary. The site includes profiles of the students in the documentary, as well as sections on
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 MIT+K12  Massachusetts Institute of Technology
An open platform for K12 educators and Massachusetts Institute of Technology (MIT) to work together to make and crowdcurate videos about science, technology, and math. This collaboration of MIT and Khan Academy invites primary and secondary teachers
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 M.I.T. K12 Math Games Lesson Plans  Wendy Huang, MIT Teacher Ed Program Manager
A collection of math games lesson plans to make learning math fun and engaging for middle and high school students. Written by MIT teacher education students.
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 M&M Software Online Catalog
Mailorder library of familyoriented, educational and game software, a resource for schoolteachers, home school associations and parents who want to use a computer as a creative teaching tool, or just for fun. Products for Apple IIs, the Macintosh, DOS
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 Mobilizing Minds: Teaching Math and Science in the Age of Sputnik  National Museum of American History, Smithsonian Institution
The 1957 launch of Sputnik, combined with a burgeoning school age population, catalyzed reform in mathematics and science teaching in the United States. This online exhibit presents objects from the time of Sputnik, including books and apparatus associated
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 Mobius  Paul Doherty
A Mobius strip is a band of paper that's deceptively simple in its appearance and exceptionally twisted in its properties. This activity is organized into an introduction, materials required, warming up, "what's going on?" and tools for further study,
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 The Moebius Strip  Jan Garner
An exercise on making a Moebius strip (a loop of paper with a half twist in it). How to make it, what to do with it, where to find it on the Web.
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 Money as You Grow  United States Department of Treasury
Twenty ageappropriate financial activity prompts for parents to promote financial literacy in their children. Companion site to Money as You Learn, another initiative  for teachers  of the President's Advisory Council on Financial Capability.
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 Money as You Learn  United States Department of Treasury
Lessons, activities, and other teacher tools to integrate personal finance into the teaching of the Common Core State Standards (CCSS) in Mathematics. "Personal finance big ideas" include cost/benefit analysis, delayed gratification, inflation, opportunity
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 Moneybee Multiplayer PreAlgebra  Jordan Pollack
Interactive peer tutoring site where pairs of learners create "coin puzzles" for each other to solve. Requires free registration, as this is an educational psychology research project.
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 Money Cents  MoneyCents, Inc.
Cartoon characters introduce the basics of saving and spending money. Interactive calculators to investigate sales and car loans, history quizzes, and Shockwave games.
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 Money Instructor
Teach and learn money, personal finance, money management. Free limited trial version, or pay for the full version. Includes money worksheets, lessons, lesson plans, counting money, spending and saving, checking, budgeting, investing, and more money topics.
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 Money  Lesson Ideas: Math; Teachnet.Com
293 Ways to Make Change for $1; Place Value Made Fun (dice games, counting money); Order Out (applying multiplication, planning, and calculator skills
by using an order out bill).
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 MoneyWise: Parents & Educators  Charles Schwab & Co., Inc.
Resources for teaching kids and teens money basics: articles; handson activities; life lessons; families & money surveys; questions and answers from Schwab's "Ask Carrie" service on everyday financial challenges; workshops, curricula, and more.
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 Monica Neagoy: Mathematics and Mathematics Education Consulting Services
Monica Neagoy is a mathematics consultant, public speaker, tutor, and teacher. She offers keynote addresses, Math Magic shows, teacher professional development, creative/technical writing, and other activities at the intersection of arts, education, and
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 Monkey Pod Games  Monkey Pod Games
Monkey Pod Games specializes in puzzles that can be used in the math classroom in order to help students understand mathematical concepts more easily.
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 Monthly Themes  NRICH Maths, Univ. of Cambridge
Past problems from the NRICH Online Maths Club, archived by month. Each problem has a symbol indicating the stage, which tells you how little or how much mathematics you need to know to solve the problem but is no indication of its difficulty. The five
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 The Monty Hall Problem  Math Forum, a Classic Problem from the Ask Dr. Math FAQ
Let's Make a Deal: If you're shown a goat behind the second of three doors, should you stay with your first choice or switch?
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 Moogie on the Net!  Joseph Emanuel, Emanuel Software
Commercial drill and diagnostic software where the numbers always change. Not meant to instruct students or to present them with new material, but rather, to help them learn the process of solving problems. Software aligned to national and numerous state
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 More Complicated Than It Seems  Kate Nonesuch
In this review of the literature of approaches to adult numeracy instruction, Kate Nonesuch asks the question, "How can ABE math instructors apply research findings to their own teaching practice?" Through an extensive literature review and ongoing discussions
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 More Papercutting Patterns (Geometry and the Imagination)  Conway, Doyle, Gilman, Thurston; The Geometry Center
Conical, cylindrical patterns, Moebius, and other symmetrical patterns to experiment with.
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 The Most Colorful Math of All (MegaMath)  Nancy Casey; Los Alamos National Laboratory
Coloring is a profound mathematical topic with multimilliondollar industrial applications. The problem presented here has been of interest to mathematicians for over a hundred years. With a few crayons or markers and some handdrawn maps, children can
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 Mothmatic Math Games  Craig Gibson
Animated games for practicing arithmetic skills.
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 Motion Math  Motion Math Inc.
Makers of educational software for iPad, iPhone, and iPod Touch — often set within animal adventures — such as Motion Math Zoom, Hungry Fish, Hungry Guppy, and Questimate.
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 MOTIVATE  Univ. of Cambridge, UK
MOTIVATE is a project incorporating a series of videoconferences, run by the Millennium Mathematics Project at Cambridge. The objectives of MOTIVATE are: to enrich the mathematical experience of school students, to broaden their mathematical horizons,
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 M Puzzle: a Math Line Puzzle  Math Forum
Construct nine triangles by drawing three straight lines through a capital M. Questions, hint, solution.
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 Mr. Martini's Classroom: Math Practice
Flash cards for drill. Press the check to select 5, 10, 25, 50, or 100 card selfevaluation. Miminum verbage to make it accessible to nonEnglish speakers. Works best with later versions of IE but should work well with W3C Mozilla based browsers.
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 Mr. Myers' Classroom  Nathan Myers
Read the puzzle of the week and then submit your answers online. Other "brain busters" include matrix logic puzzles, featuring readymade charts. Explore and identify fraction bars with JavaScript, or geometry with Java applets. Also, fact sheets and
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 Mrnussbaum.com  Greg Nussbaum
Mrnussbaum's Math Lab has games such as Tony Fraction's Pizza Shop; Smart Poll; Cash Out (for practice making change); and Tackle Math Ball, Math Speed, Buffalo Math, and Math Fries (all timed games for practice adding, subtracting, multiplying, and dividing).
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 Mr. R.'s World of Math
Mr. R. has written math poems and a story for his 4th grade students, to help them remember basic math facts. These and other "mathless" poems are available here. The complete story is available for purchase.
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 Mrs. Glosser's Math Goodies  Gisele Glosser
Interactive math lessons that work online and offline in a Web browser, and provide immediate feedback to students, with in addition Worksheets (on circumference and area; exponents; expressions and equations; integers; Ocean Math; order of operations;
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 Mr. Smith's Math Class  Terry Smith
Mr. Smith and his fourth grade students from Eugene Field Elementary School in Hannibal, Missouri, have put together a complete website documenting the work that they are doing this year. The math area of the site features: a request for math problems;
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 MSEB Classics  Mathematical Sciences Education Board, National Research Council
Reports issued between 1990 and 1995, from the MSEB: Mathematical Preparation of the Technical Work Force: Report of a Workshop; What Should I Look for in a Mathematics Classroom?; Achieving Quality in Undergraduate Mathematics (see also Looking for Gauss...or
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 MSPnet: The Math and Science Partnership Network  TERC
The Math and Science Partnership (MSP) Program is a major research and development effort to understand and improve the performance of K12 students in mathematics and science. MSPnet is their electronic community. Learn about individual partnership projects;
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 The M@th Projects Journal (MPJ)
A bimonthly electronic publication offering tips and lesson plans for interactive math projects, discussions of relevant topics, and contributions from teachers around the country. Subscription information is available, and you may download the current
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 Mucho Math  Jake Enfield
Flash program for students to learn math vocabulary and mental math tricks through best practice teaching methods (discovery learning, scaffolding, spiraling, and customized learning). Teachers can create an account and add one student for free to try
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 Muggins! Math  Old Fashioned Products, Inc.
Makers of the arithmetic board games Muggins, KnockOut, Jelly Beans, Fudge, and Opps, all available as single wooden board, reversible wooden board, wipeoff board, or overhead transparency. Manipulatives include Number Neighbors, PreAlgebra for Visual
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 The Mult Applet  Philip Lin
A Java applet for practicing multiplication tables. Tables from 2 to 9 are scrambled and displayed with blanks for the answers. Enter your answers; if you miss any, you get a chance to correct them. If you get them all right the first time, the applet
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 Multicultural Pavilion, University of Virginia  Paul Gorski
Sites for educators interested in multicultural issues. Resources for teachers, including reviews of children's music, multicultural activities, online archives, and links to multicultural websites; papers, book reviews, and published materials; statistical
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 Multimedia Catalogue  Biography Index  Institute and Museum of the History of Science of Florence, Italy
Biographical texts of personalities connected in some way to Galileo. Each text is accompanied by still or animated images or by filmed sequences. Included are Archimedes, Aristotle, Bernoulli, Brahe, Copernicus, the Galilei family, Kepler, Milton, Ptolemy,
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 Multiplication of Decimals  H. B. Meyer, FaustGymnasium Staufen (Mhb)
Interactive training: multiplication of decimals (requires JavaScript). The user has to fill in boxes with proper digits to practice the multiplication algorithm. Problems may be posed either by the user or by the computer. A German version is available.
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 Multiplication Table/ Girandola delle Tabelline  Renato Montemurro
In Italian: Video of the use of a patented Pythagorean windmill for learning multiplication tables. In Italian.
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 Multiplication Tables Help  Math Facts Now!
Order Math Facts Now on CDROM; see free multiplication tables worksheets, teaching tips, game, etc.
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 Multiply!  Dani Kenli
Enter your name and press the "Click to start" button, then key in the products indicated to compete in this selfdescribed "International Multiplication Championship," which ranks your speed and accuracy in a table of the world's multipliers. Refresh
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 Multiplying by Zero  Math Forum, Ask Dr. Math Common Question
A selection of answers to questions about multiplying by zero, such as why zero turns other numbers that clearly have a greater value to zero when multiplied?
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