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

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

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

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.

This learning object describes the equipment and supplies needed to document bloodstain patterns.

In this document you'll review an overview of cutting speeds and RPM calculations.

In this learning object you'll explore how agents of socialization shape a person's life and you'll map the significant events, places, and people that have shaped your life.

The student reviews definitions of stationary/stationery and completes a practice exercise.

Students read how the transfer function is developed for an RC low-pass filter. A straight line Bode plot is drawn through close approximations.

Learners view the waveforms and voltages of an Edison Three-Wire System and read a description of the polarities across the secondary of the center-tap transformer. This transformer supplies power to residential homes.

In this animated object, learners examine the operation and programming requirements of a PLC Examine-Off instruction. A brief quiz completes the activity.

The learner will identify the three general types of ethics.

In this learning activity, you'll be introduced to Third Normal Form and you'll design a table following these rules.

Learners test their spelling ability by identifying misspelled words from lists of words commonly used in business.

Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of division to simplify algebraic expressions.

In this learning activity you'll be introduced to the eight most common logical fallacies commonly used in persuasive speeches.

In this animated object, learners examine what happens to lead and cycle times when the batch size is reduced.