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  All Sites - 316 items found, showing 301 to 316

  1. Was Math Invented or Discovered? - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about whether math was invented or discovered. ...more>>

  2. Weighing a Counterfeit Coin - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about using a balance beam to find a counterfeit coin, such as "If there are twelve coins in a bag, one of which is either lighter or heavier than the others, find the fake coin in exactly 3 weighings and determine ...more>>

  3. Weighted Averages - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about weighted averages, where some data have greater value than others, such as determining a final grade from three tests worth a total of 45% of the final grade, a final exam worth 25%, a project worth 15%, and three ...more>>

  4. The West Point Bridge Design Contest - United States Military Academy, West Point, New York
    A challenge for U.S. students age 13 through grade 12. The purpose of the contest is to provide middle school and high school students with a realistic, engaging introduction to engineering. Learn about how engineers use the computer as a problem-solving ...more>>

  5. What Color Is My Hat? - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about which person wears which hat, such as "Three students close their eyes, and the teacher puts a hat on each of their heads (hiding the other two hats)...." ...more>>

  6. What is 1+1? - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about what 1+1 is in decimal and binary, how to prove it with Peanos Postulates, as well as a false proof that 1 + 1 = 1. ...more>>

  7. What is Mathematics? - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about what mathematics is, such as "Is math a science, an art, or some other anomaly?" and "Is there a difference between arithmetic and mathematics, and what is it?" and "Is math a science or an art?" ...more>>

  8. What is Mod? - Math Forum, Ask Dr. Math Common Question
    A selection of answers to questions about modular arithmetic, including the method of casting out nines. ...more>>

  9. Which One Is Older? (Math Chat) - Frank Morgan, MAA Online
    Creative solutions to the challenge: how can two people determine which is older without revealing their ages? Math videos available from the Mathematical Sciences Research Institute via the MAA. "Mathematics in Arcadia," "Fermat's Last Theorem," as seen ...more>>

  10. window into a math classroom - Sadie Estrella
    A snapshot-driven blog subtitled "a glimpse into a math classroom once a day." Estrella's posts, enlivened with pictures of her students and of their work on classroom dry-erase whiteboards, have included "Trying Math Meta-Cognition," "More Arguing about ...more>>

  11. Wired Math - Dean Murray, Soo Go, Jamie Pearson; University of Waterloo (Canada)
    A free website created for students and teachers by a teacher for the University of Waterloo. The online games, drills, "follow up exercises," and answers address topics common to middle grades on every continent. Also availalble from http://www.wiredmath.ca/ ...more>>

  12. Word Problems for Kids - St. Francis Xavier University; Canada's SchoolNet
    Word problems by level for students in grades 5-12, which can help improve problem-solving skills. A hints link is available for difficult problems. Complete solutions are available upon request to teachers with e-mail addresses. From students, principals, ...more>>

  13. Working Together - Math Forum, a Classic Problem from the Ask Dr. Math FAQ
    Jack can paint a house in 5 days, and Richard can paint the same house in 7 days. Working together, how long will it take them to finish the job? ...more>>

  14. The World of Trotter Math - Terry Trotter, Escuela Americana, San Salvador, El Salvador
    A page of problems, problem sheets, and investigations, with links to image files of an in-class math newsletter, Trotter Math News. Of particular interest to the author are numbers: happy and dizzy numbers; palindromes; super squares; perfect, amicable, ...more>>

  15. Writing to Develop Understanding: The Math Forum @ Drexel's PoWs - Suzanne Alejandre
    What can we ask students about their problem solving that will help them the most? This article, originally published in the December, 2006, issue of the CMC ComMuniCator, journal of the California Mathematics Council, addresses that question by examining ...more>>

  16. xyAlgebra - John C. Miller, The City College of The City University of New York
    Download xyAlgebra for interactive instruction and practice in algebra, or xySolver for interactive instruction and practice in verbal problems. These two student programs include explanations of principles of basic algebra, step-by-step sample problems, ...more>>


 
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