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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