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Student Resources for Trigonometry

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High School Trigonometry

High School Trigonometry: Resources for Students, Teachers and Parents

In the High School Trigonometry Web Guide, you’ll find formulas and graphs, homework help, lesson plans and much more. Break the complex theories of trigonometry into smaller, more understandable units with this informative Web Guide.

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Student Resources for Trigonometry

For many high school students, trigonometry is the highest level of math offered—and the most complicated. The Web sites in this section can help you find what you need for your everyday homework, graphic demonstrations of trigonometry concepts and loads of practice problems to help you hone your skills.

Dulcinea's Insight

  • If you’re wondering what role trigonometry plays in the real world, read “Applications of trigonometry” an article by math professor David Joyce.
  • Your graphing calculator is going to be one of your best friends in trig. Texas Instruments (TI) offers the best selection of graphing calculators, but there are also free sites on the Web like Webgraphing.com that perform graphing calculations.
  • When using an online demonstration, spend a few minutes playing around with it to see how it works before using it to help you understand those important trig problems.

Dulcinea's Picks

For an introduction to trigonometry …
Dave’s Short Trig Course is maintained by Clark University Math professor David Joyce and presents the background, applications, functions and formulas of trigonometry in a manner that’s easy to understand.
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An Introduction to Trigonometry walks you through trigonometry with basic definitions and functions that increase in difficulty the further you go. This a great site for an overview of trigonometric functions, formulas and equations.
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S.O.S. Math helps you learn trigonometry through functions, formulas and equations. Each section provides a brief lesson followed by several sample problems. The answers to the problems are described step-by-step and are easy to understand.
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For homework help and calculator tutorials …
Ask Dr. Math is hosted by the Math Forum at Drexel University and provides searchable answers to common trigonometry questions. Browse the alphabetical listing of questions and answers or search by keyword at the bottom of the page.
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MathBits.com shows you how to use your graphing calculator for trigonometry, taking you step-by-step through common trig problems.
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For test prep …
Oswego City School District has lessons, activities and sample problems that can help you prepare for class and standardized tests in trigonometry.
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For graphical demonstrations …
Trigonometry Illustrations provides 25 Java-based, interactive demonstrations of trigonometric functions and basic laws. The demonstrations are easy to use and show how these functions work in simple graphic terms. You’ll need to enable the latest Java applets to use the site correctly.
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Teaching Resources for Trigonometry

Trigonometry can be one of the most difficult subjects when it comes to engaging students in ... read more »

Parent Resources for Trigonometry

Your teen will certainly be challenged with a year of trigonometry and, unless you’re an ... read more »

Community Links in High School Trigonometry

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