Links:
1. Introduction to Trigonometric Functions- these JAVA applets are great teaching tools. They take a few minutes to open. Open mutiple browsers and download the applets before you begin instruction. You can then use them as they are needed.

2. Right Angle Trigonometry - Oswego City School District Regents Exam Prep. This is an excellent tutorial site that will the fundamentals in an entertaining, straightforward way.

3. Topics in Trigonometry - a great site from the Borough of Manhattan Community College the City University of New York. Tutorials with depth.

4. Educypedia Mathematics Java applets - this page from the Educational Encyclopedia contains links to sites where animations and interactive trig operations an be found. An excellent tresource for students to support their tutorials.

5. Trigonometric and Inverse Trigonometric Function Gallery - This is a gallery of demos illustrating selected families of trigonometric functions. These animations can be used by instructors in a classroom setting or by students to aid in acquiring a visualization background relating to the change of parameters in expressions for functions. Two animation file formats, gif and mov are available.