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

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

Learners read how to use the knobs and the output terminals of a Wavetek Model 25 function generator to obtain a waveform at a desired frequency.

The student takes a quiz on lathe operations between centers.

In this animated and interactive object, learners identify musculoskeletal fractures.

Students view the steps for subtracting complex numbers in Excel.

Learners study the operation of a ladder circuit in which coils on one rung control contacts in other rungs.

In this learning activity you'll review a conclusion and decide how effectively it summarized a speech. You'll also gain some tips for writing your own speech conclusion.

The learner will understand the importance of following instructions.

In this animated object, students view an explanation of how current, voltage, and the charge on a capacitor of a series RC circuit change during five time constants. A short quiz completes the activity.

In this learning activity you'll write a description of a vegetable peeler and submits it to the instructor.

This review tests the student's knowledge of lathe operations in chucks.

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 how the sensory, motor, mixed, and reflex nerves work in the human body.

Learners read about the S.O.A.P. and D.A.R. formats that are used to document progress notes in medical records. They then match statements to S.O.A.P. and D.A.R. categories in drag-and-drop exercises.