Math Forum Internet News

Volume 5, Number 27

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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


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         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.


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                   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%?
            
                   
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The Math Forum is a research and educational enterprise of the Drexel University School of Education.The Math Forum is a research and educational enterprise of the Drexel University School of Education.
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