Summary

This 38-minute DVD introduces the concepts of ratios, percents, squares, and square roots. Also includes demonstrations of how to manipulate simple algebraic equations.

Training Sessions

• Basic Graph Characteristics – 7 minutes Identifies characteristics of an X-Y graph. Demonstrates how values can be located and plotted on an X-Y graph. Describes how some of the characteristics of a basic X-Y graph are related to sine wave graphs and phasor diagrams.
• Phasors and Phasor Diagrams – 11 minutes Explains what a phasor is, identifies phasors commonly used in electrical applications, and explains how a phasor can be used to represent the magnitude and direction of a quantity. Describes or demonstrates three methods of phasor addition.
• Basic Trigonometric Principles – 9 minutes Describes the characteristics of a right triangle. Explains how the Pythagorean theorem can be used to calculate the value of one side of a right triangle, when the values of the other two sides are known. Explains how to determine the sine, cosine, and tangent of an angle.
• Applying Math to Metering – 10 minutes Explains how to: use current and voltage values to determine the power drawn by a circuit, determine the power factor for a circuit using the cosine function, use a power triangle to determine the apparent power drawn by a circuit.

Support Materials Available

Student workbook, instructor guide.