The target audience of this learning object is trigonometry students who have already learned what a radian is and have already derived the key values of the coordinates associated with common radian units, but now need to practice finding those values on the unit circle. The student does not need to know the definition of the six trig functions to do this activity.

In this learning activity you'll examine how a sine bar is used to measure angles.

In this learning activity you'll explore a graphical depiction of a radian for angular measurement.

After a brief review, the student solves five practical shop problems using right angle trigonometry.

In this animated and interactive object, the learner uses a TI-36X calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

The conversion from rectangular to polar mode phase angle in radians is demonstrated in Excel.

In this learning activity you'll evaluate the six trig functions using a scientific calculator.

In this learning activity you'll evaluate the Sine, Cosine, and Tangent ratios of a right triangle.

In this interactive object, learners use the Pythagorean Theorem to calculate forces.

In this interactive and animated object, learners apply the Law of Sines to determine forces using a TI-86 calculator.

Students read how to use the DEGREES() function to convert radians to degrees.

Learners examine how to solve problems using the Pythagorean Theorem in Excel. Practice problems are included.

In this animated and interactive object, the learner uses a Casio fx-260 calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

Students view the mathematical expression of an AC waveform with respect to time (t) and read about the different components of this expression.

Learners read how to use the arctangent function to calculate the theta of an angle. The proper keystrokes are displayed.

In this interactive and animated object, learners apply the Law of Cosines to determine forces using a TI-86 calculator.

In this learning activity you'll apply the Law of Sines in the solution on an oblique triangle when provided with two angles and the side opposite one of the angles.

In this animated and interactive object, the learner uses a TI-86 calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

In this interactive object, students use the Law of Sines to calculate forces.

Students use trigonometry to find the coordinates of the blending point where a line and an arc meet. Learners are given the coordinates of the center of the arc, the radius of the arc, and the direction of the line.

The learner will recognize standard-position angles and find the reference angle for any standard-position angle.

Learners apply the Law of Cosines to determine forces using a TI-36X calculator in this animated object.

In this animated object, learners use a TI-36X calculator to determine forces.