The learner views a method to find the total complex power of a circuit in which the individual real and reactive powers are found and then added together. Several examples are shown, along with the power triangles.

Students review how to use chordal distances to locate bolt hole circle locations. They then take a 10-question quiz to test their knowledge.

The student reviews definitions of their/there/they're and completes a practice exercise.

In this animated learning object, students are introduced to standard procedures, pilot actions, and pilot callouts for C-172 critical phases of flight.

Learners test their knowledge in this drag-and-drop exercise by identifying coding errors in health care claim cases.

In this interactive object, learners follow the steps required for the Ziegler-Nichols Continuous Cycling method. The process identification procedure is performed, calculations are made, and the proper PID values are programmed into the controller.

In this learning activity you'll evaluate the immune response including active, passive, natural, and artificial immunity.

In this learning activity you'll read about Robert Maddux's conflict model and then apply what you've learned to an interactive exercise.

The student reviews definitions of it's/its and completes a practice exercise.

In this highly interactive object, learners read client case studies and then select the vaccines that are appropriate to administer.

Learners brainstorm ideas for how to gather information from team members who work at different locations. They analyze the pros and cons of each idea and make recommendations.

Learners review the process for calculating board feet and use virtual samples to practice the process.

In this learning activity you'll solve systems of two linear equations in two unknowns by determinants.

In this animated object, students examine what happens when electrons share molecules.

Learners study how a DC motor generates counterelectromotive force. A short quiz completes the object.

The student reviews definitions of lose/loose/loss and completes a practice exercise.

In this interactive learning object, learners follow a strategy for identifying specific and general topics to improve their ability to find the main idea of a passage.

Students read about the countries of West and Central Africa and identify them on a map.

In this learning activity you'll review definitions of cite, site, and sight and completes practice exercises.

Students view the formula for determining twist drill speeds in metal. Exercises complete the activity.