Provides a foundation in the comprehension and analysis of computational skills required for the electrical field of study. Discusses scientific notation, metric prefixes, unit conversion, ratios, algebraic equations, right triangles, scalars, vectors, and graphing. Analyzes the sine wave by identifying characteristics that define the signal. Explains phasor representation of sine waves through the comparison of leading and lagging signals. Accomplishes addition and multiplication of phasors through the use of polar to rectangular conversions or right triangle calculations. Emphasizes entering calculations into a scientific calculator. Credit may be earned in SKET 100 or ET 100 but not both.