[Free Registration/Login may be required to access all resource tools.] Express a degree measurement in radians.

Convert angle measures given in degrees to radians and vice versa. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

This site displays the formulas for the simple conversions of degrees to radians and radians to degrees. Near the bottom of the page there are examples of these conversions.

An introduction to radian measurement, including converting between radians and degrees. Includes several examples and lots of pictures.

Convert angle measures given in degrees to radians and vice versa.

Learn the definition of radians and how to calculate trig ratios using radian measures. Examples are provided showing how to convert from degrees to radians.

This resource details how to convert between radians and degrees with worked examples. It also looks at special radian measures that are used often.

Describes degrees and radians with respect to angles, the reason for the invention and use of radians, and how to convert between radians and degrees.

Take a tour of trigonometry using degrees or radians! Look for patterns in the values and on the graph when you change the value of theta. Compare the graphs of sine, cosine, and tangent.

Here is a site that clearly and thoroughly explains the radian measure of angles. There are example problems solved, problems for the student to attempt, and answers to the student problems.

[Free Registration/Login may be required to access all resource tools.] This lesson introduces Polar coordinates.

[Free Registration/Login may be required to access all resource tools.] This lesson teaches you how to change Polar coordinates into rectangular coordinates.

[Free Registration/Login may be required to access all resource tools.] This lesson covers how to find the area of a triangle using sine.

Students are introduced to concepts taught in trigonometry. The tutorial consists of notes and examples.

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 section introduces radians an alternative to degrees as a way to measure the rotation around a circle. It also begins to draw connections between radians and trigonometric identities.

For this task, students use a piece of string or another tool to measure the radius of the circle and then mark off the corresponding arc length on the unit circle as many times as they need to for 0, 1, 2, 3, 4, 5, and 6 radians. They...

Introduces techniques for solving trigonometric equations. Provides worked examples of solving some simpler to medium-hard equations.

Three trig tables are provided for student and teacher reference. The first table lists the sine, cosine, tangent, secant, cosecant, and cotangent values of all whole-number angles from 0 to 90. The radian equivalent (to four decimals)...

Activities in this lesson explore how to identify the coordinates where special right triangles intersect with the unit circle in all four quadrants, use both degrees and radians to identify angles, and explore angles of different sizes...

The purpose of this task is to introduce radian measure for angles in a situation where it arises naturally, in this case the movement of a bicycle wheel. Aligns with HSF-TF.A.1.

Convert units of angles by entering the value to convert and the from and to units.

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...

Just about everything you need to know about trigonometry can be found here. Interactive examples and demonstrations help to enhance the lessons. Although not required, the tutorial uses Live Math and Scientific Notebook.