From: Pat Ballew (for Teacher2Teacher Service)
Date: Aug 02, 2000 at 12:52:26
Subject: Re: Trigonometry supplement

Dan,
  I'm not sure if you meant a written supplement, or an online program...
Here are a couple of Internet resources that look like they might be
useful.

1. S.O.S. Mathematics - Trigonometry
   Learning units presented in worksheet format review the most
   important results, techniques and formulas in college and
   pre-college trigonometry.
   http://www.sosmath.com/trig/trig.html
2. Tutornet - Live Interactive Tutoring
   An interactive Web site featuring teacher-moderated chat rooms to
   help students with tough homework problems in Algebra I, Geometry,
   Algebra II, Trigonometry, Pre-Calculus, AP Calculus, Chemistry,
   Physics, and Biology. Tutorials are scheduled in the afternoon hours
   when students can access the site from school settings or their
   homes, and in early evening hours, with hours tailored to the local
   time of the students. As students log on, they select the subject
   area that they want help with and are then placed in the classroom
   with the fewest number of students at the time, greeted by a
   "Netucator," and invited to type or write their question.
   Tutornet.com allows students to print or save their work for later
   reference. Subscription payments of $59.99/month for unlimited
   access are made on-line using a secure credit card link.
   http://www.tutornet.com/
3. Math Planet
   A site for high school students featuring algebra, geometry, and
   geometry concepts glossaries; crash courses on basic Algebra and
   Geometry; an advanced course on Algebra and Trigonometry; a
   customizable lesson plan based on individual level
   http://library.thinkquest.org/16284/index_s.htm
4. Dave's short course in trigonometry
   An introduction and a guide to trigonometry, with hints and answers
   to exercises, and Java applets as illustrations, for which you'll
   need a Java-enabled browser (Netscape 2 or later). Contents include
   applications of trigonometry, angle measurement, chords, sines,
   cosines, tangents and slope, the trigonometry of right triangles,
   the trigonometric functions and their inverses, oblique triangles,
   and a summary of trigonometric identities.
   http://aleph0.clarku.edu/~djoyce/java/trig/

Hope that helps...

 -Pat Ballew, for the Teacher2Teacher service

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