**Title:** Technology for Displaying Trigonometric Graph Behavior: Sine and Cosine

**Description:**
After interacting with a list of specified websites, students will explain the effects of various coefficients on the graphs of sine and cosine by describing these effects on a lab activity worksheet with an accuracy of 80%.This lesson plan was created as a result of the Girls Engaged in Math and Science, GEMS Project funded by the Malone Family Foundation.

**Standard(s): **

[MA2013] PRE (9-12) 29: (+) Use special triangles to determine geometrically the values of sine, cosine, and tangent for ^{π}/_{3}, ^{π}/_{4}, and ^{π}/_{6}, and use the unit circle to express the values of sine, cosine, and tangent for π - *x*,
π + *x*, and 2π - *x* in terms of their values for *x*, where *x* is any real number. [F-TF3]