In this animated object, learners follow the steps for solving word problems using algebra. An introductory example is explained.

In this learning activity you'll factor problems using the difference of two perfect squares.

In this animated object, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations. A quiz completes the activity.

In a series of practice problems, learners use the addition or subtraction method to solve systems of linear equations, also called "simultaneous linear equations."