Teaching Textbooks

You are here: Pre-Calculus >> Sample Lectures

The	contain 10-15 minute lectures

for every lesson in the print textbook. They also feature multimedia step-by-step explanations to the 5 practice problems that accompany each lesson. This set of CDs is ideal for students who prefer listening and watching to reading.

Demos for Broadband Users - Lectures

Direct and Inverse Variations

Solving Equations Graphically

The Sine and Cosine Functions

More on Probability

Demos for Broadband Users - Practices

Finding the matching x-values of a function with a calculator

Solving a logarithmic equation with a calculator

Solving a trig equation by graphing with a calculator

Matrix multiplication

Finding the magnitude and direction angle of a vector

Converting a pair of rectangular coordinates into polar coordinates

Finding the equation for a sine function

Simplifying a trigonometric expression

Finding parametric equations

Solve a system of equations using matrices