Learners read an explanation of variation and how it can make a process unpredictable. They distinguish between common and special causes of variation in a brief exercise at the end of the lesson.

In this learning activity you'll review the operation of an Exclusive-NOR gate by using a truth table, a Boolean Algebra equation, a switch analogy, and a written statement.

The learner reads an explanation of how to determine lengths for tubing and pipe bending and then performs calculations in an interactive exercise. Two methods for determining angle bends are shown. A calculator is required.

In this learning activity you'll review rigging and lifting as well as signals for crane movement.

In this interactive object, learners demonstrate their knowledge of the in-depth checklist a pilot uses on a regular basis.

In this animated activity, learners examine hearing and balance. Detailed drawings of the outer, middle, and inner ear structures are included.

Learners compare the behaviors and situations that interfere with listening on the job with those that enhance listening skills and job performance.

Learners read the legal definition of sexual harassment and then evaluate two situations to determine if the behavior should be reported as possible sexual harassment.

Learners follow the progression of a sexual harassment situation and recount the steps the victim took to deal with the problem.

Have U "Herd" about these conditions of the Human Ear? Build your own band from a herd of mutant cows while reviewing conditions of the ear! Loss of hearing happens slowly and can go unnoticed. If you have trouble hearing on the phone, hearing birds, or work in a loud noisy environment. Get your hearing checked.

Match the safety equipment with the correct use.

What to do what not to do in lab

Use this quiz to help you review the information for Safety and Supervision of Young Children: Part A. Use your class resources for help.