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3 July 2000 Vol. 5, No. 27 THE MATH FORUM INTERNET NEWS Quia! | Graphing Linear Equations - O'Brien Calendar, Birthdays - Dr. Math FAQ QUIA! - The Learning Group http://www.quia.com/ Enter your material into a form, select a few options, and press a button to create your own Java-enabled quizzes, home pages, and learning games. Choices include flash cards, matching games, and concentration games. Examples are available for browsing in mathematics: http://www.quia.com/math.html In addition, topics offered include sciences (astronomy, biology, chemistry), modern languages (French, German, Spanish), English, History, Medicine, Technology, and more. See how teacher Susan Socha of McLean High School in Fairfax, Virginia has used Quia! to build a geometry tutoring page. Vocabulary games and relevant links enrich review materials and practice quizzes: http://www.quia.com/pages/int2.html -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- ALGEBRA 1: GRAPHING LINEAR EQUATIONS - O'Brien http://www.terragon.com/tkobrien/algebra/ A Master's Degree project designed to provide an understanding of the graphing of linear equations at the Algebra 1 level. Use Java applets to learn about: - ordered pairs - graphing equations - horizontal lines - vertical lines - slope - equations and slope - finding the equation of line - scatter plots - parallel lines - perpendicular lines - solving a system Also included are quizzes and tests; Ask the Teacher (email a question); a discussion room, glossary, index, and message board; a crossword puzzle and word search; and an Internet project, 'The Campaign Trail', predicting the number of people who will vote in the year 2004. The site also provides a simple scientific calculator, and Graph-It, a plotter that can graph functions, differentials, and integrals to help with algebra, trigonometry, and calculus homework. -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- New from the Dr. Math FAQ THE CALENDAR AND THE DAYS OF THE WEEK http://mathforum.org/dr.math/faq/faq.calendar.html What years are leap years? What day of the week will it be a year from today? How do I find the day of the week for any date? How do I find a calendar for any year? How common are Friday the 13ths? BIRTHDAY PROBABILITY PROBLEM http://mathforum.org/dr.math/faq/faq.birthdayprob.html A classic problem: What if somebody offered to bet that at least two people in your math class had the same birthday? Would you take the bet? How large must a class be to make the probability of finding two people with the same birthday at least 50%? -|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|-\-/-|- CHECK OUT OUR WEB SITE: The Math Forum http://mathforum.org/ Ask Dr. Math http://mathforum.org/dr.math/ Problems of the Week http://mathforum.org/pow/ Mathematics Library http://mathforum.org/library/ Teacher2Teacher http://mathforum.org/t2t/ Discussion Groups http://mathforum.org/discussions/ Join the Math Forum http://mathforum.org/join.forum.html Send comments to the Math Forum Internet Newsletter editors _o \o_ __| \ / |__ o _ o/ \o/ __|- __/ \__/o \o | o/ o/__/ /\ /| | \ \ / \ / \ /o\ / \ / \ / | / \ / \ |

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