A lesson challenges scholars to create a cinquain poem. Writers begin by choosing a topic and brainstorm details, then compose their original poem making sure to count syllables. 

Learners use the sum angle formula for sine to derive the sum and difference formulas for cosine and tangent. The level of difficulty is quite high. Learners must be familiar with trigonometric identities as well as the characteristics...

In this literature analysis worksheet, studnets read Dante's Inferno and write an introduction with a thesis statement. Students give a synopsis of the comedy and then write an essay. Students select from the five options to complete the...

The interactive tutorial explores the graph of the derivative of sin (x).

This applet allows the user to create the graphs of sin, cos, and tan by moving a scroll bar. The user can watch the unit circle and the graph simultaneously to see how the two are related. The user may also choose to see the angle...

Lists five "deadly sins" to purge from your writing. If you're not sure how to correct these errors, just click on the list item to link to more information.

In this activity, students explore a right angled triangle and its trigonometric concepts. They investigate the trigonometric ratios for the angles of the triangle.

Proves that the cos and sin functions form an orthogonal set, as it applies to Fourier series.

In Spanish. In these activities you can develop the concept of trajectory. Try to trace the figures without lifting your pencil.

Several formulas are given for taking the derivatives of trigonometry functions. Several examples are presented to demonstrate the process of finding these derivatives. The examples allow the user to practice before seeing the solution.

At this site from eFunda you can scroll to the middle of the page for a listing of multiple angle formulas for cos, sin, and tan.

This site examines the six trigonometric functions from a right triangle point of view. Provides information, examples, and lots of exercises for understanding.

BBC provides a three part lesson on solving triangles, by using the sine rule and cosine rule.

The tutorial investigates period and frequency by examining the shapes of the sine and cosine functions. The resource consists of definitions, animations, interactive graphs, and examples. Practice problems with solutions are included.

In this activity students use the CAS tool to explore sin, cos, and tan functions. They expand the functions and find the domain. They also prove the conjectures.

Students will be introduced to right triangle trigonometry. They will use the TI-89 and Geometer's Sketchpad to construct a right triangle and calculate sin, cosine, and tangent of various acute angles.

This is a way to use the TI-Navigator to check for an understanding of sin, cos, and tan before you move onto word problems.

The definitions of the six trig ratios are presented here, along with several examples of how to determine the ratios given 2 or more sides of a right triangle.

BBC provides a tutorial that explains how radians are related to degrees and demonstrates how to solve trig equations in radian units. Examples and a practice test are available.

This tutorial presents a series of trigonometric integrals to solve using recursion or reduction formulas. Click Solution next to each formula and a popup screen provides the solution.

This is a math site on the inverse of sine. Includes charts, color graphs, formulas including the Maclaurin series, as well as links to math terms and subject areas used within the site.

The Clark University site shows and explains the graphs of the six trigonometric functions. It explains how to find an arbitrary angle measurement using trig. Also, it explains that sine and cosine functions are complementary.

This Clark University page is an excellent reference page for trig identities. It is a little difficult to read so take your time with the formulas. If you remember soh - cah - toa, the other formulas are right here.

MathWorld provides graphs of the sine function, both 2-dimensional and 3-dimensional. Higher level mathematical applications given, including the hyperbolic sine function, representation of the sine function as an infinite sum as well as...