Twenty-four problems present a variety of practice working with degree and radian measure. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...

[Free Registration/Login may be required to access all resource tools.] This lesson introduces the unit circle and radians.

Students label key points on the unit circle in both radians and degrees. They count their way around the circle in 30-degree increments, and then again in increments of radians. Finally, students go through a similar process for angles...

Rather than dividing a circle into some number of segments (like 360 degrees), mathematicians often prefer to measure angles using the circumference of a unit circle - a circle with radius 1. This way of measuring angles is called...

Angles are key to Trigonometry. Learn definitions of the parts of an angle, degrees, and radians, identify the standard position of an angle, convert between radians and degrees, and more.

This site offers a discussion on radian measure. The site offers pictures and explanations to clarify the formulas given. (Note: The free download at the end of the page will not work in archived version of site.)

[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, young scholars 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....

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