Learners examine the method used to calculate the mass percent of an element in a compound. Three examples and one problem illustrate the method.

In this interactive exercise, learners label the components of a workstation, a Windows desktop, and an application window.

Learners read about the similarities of electronic and hydraulic components and then match the schematic symbols in a drag-and-drop exercise.

Learners complete an exercise to match chemical formulas with the names of binary compounds, tertiary compounds, and ions.

In this animated activity, learners listen to instructions for simplifying a complex fraction by finding the least common denominator. This learning object requires a computer that is equipped with speakers.

In this learning activity you'll explore three common network protocols that computers use to communicate in a network.

In this learning activity you'll review the rules for using commas to divide nouns written in a series and complete an activity.

Learners examine the complex number function to convert real and imaginary coefficients into a complex number.

Learners explore the use of complex numbers through a series AC circuit analysis problem. The steps are compared to the graphical method of finding circuit impedance and the phase angle.

Learners study animation showing the operation of cumulative and differential DC compound motors. A short quiz completes the activity.

Learners read an explanation of how to connect two 7485 ICs to compare binary numbers by creating an 8-bit comparator. Diagrams and charts are presented.

In this simulation activity, an electrician troubleshoots a defective compressor motor that will not start. To find the problem, the learner selects the appropriate blueprints that must be referred to while performing the troubleshooting steps. Then safety protocols will be followed, such as making lockout-tag out installations and donning PPE items before taking measurements with a multimeter to locate the faulty component.

Learners identify combination, decomposition, displacement, and combustion types of redox reactions. They also watch a video clip that demonstrates the reaction of sodium and water.

Compare the behaviors and situations that interfere with effective communication in the workplace with those that enhance listening skills and career performance.

The student studies the method to calculate complex power where the Vrms of a circuit is multiplied by the complex conjugate of the total circuit current. Several examples are given, along with the power triangle.

Learners read about nonverbal communication. In a drag-and-drop exercise, they evaluate photos of people interacting and determine if the behaviors shown interfere with communication or enhance it.

Learners compare animations of analog and digital data signals. A short quiz completes the activity.

Learners view movie clips to determine the solubility of two ionic compounds. They also examine a solubility chart and predict the solubility of compounds.

In this interactive object, learners calculate a centroid of a composite area by first creating a chart. A short quiz completes the activity.

Learners examine the theory of operation for a combustible gas detector. A brief quiz completes the activity.