Learners examine the operation of the on-off control mode using a home heating example. A short quiz completes the activity.

In this interactive object, learners view a practical application of a PLC Timer-On function.

Learners read the definitions of the prepositions "in," "on," and "at" and view examples of how these words are used. They then complete an exercise by inserting the prepositions into sentences.

Learners examine an animated view of the operation and programming requirements of a PLC Examine-On instruction. A brief quiz completes the activity.

Learners view an animation showing the one-shot operation of a programmable logic controller.

In this interactive object, learners change the amount of money received from tax revenue and the amount spent on federal programs as they calculate how fiscal policy affects the gross domestic product (GDP), unemployment, inflation, the annual deficit, the national debt, and interest on the national debt.

Learners read the definitions of working capital, current ratio, quick ratio, return on equity, accounts receivable turnover, and inventory turnover.

In this animated object, learners examine the ratio control method used in automation when two or more ingredients are mixed. A brief quiz completes the activity.

In this learning activity you'll be introduced to the Post hoc, Ergo Propter hoc fallacy.

In this animated object, learners examine the fundamental operation of a noninverting operational amplifier. A brief quiz completes the activity.

Learners answer 20 questions related to providing responsible customer service. The questions are presented in a game show format, and immediate feedback is provided. A final score is given at the end of the activity.

This activity will examine several of the barriers related to problems with communication.

In this learning activity you'll explore the differences between primary and secondary research.

In this learning activity you'll review facts and interpretations, determines a verdict, and responds to questions.

In this learning activity you'll analyze the impact of various factors in their lives. They are then transformed by a new identity. They analyze the potential impact of this new identity and compare it to their initial lives.

In this animated object, learners examine how the heating or cooling steps in a manufacturing process work to control a chemical reaction.

With this highly entertaining four-minute animation, learners can visualize the basics of accounting.

This learning object will be used in conjunction with the DNA collection methods learning object. This learning object will cover the errors that were present in the DNA collection methods learning object and how they could be corrected.

This animated lesson shows how a ladder circuit causes the cylinder of a hydraulic circuit to continuously extend and retract after a Start button has been pressed.

In this learning activity you'll review an introduction and samples of description worksheets. You'll then select an object and complete your own description.