In this animated and interactive object, learners follow two methods for converting a hexadecimal number to a decimal number. They test their knowledge in exercises at the end of the learning object.

In this animated object, learners examine how gas volume varies directly with absolute temperature (K at constant pressure). An example of a sample of gas at two conditions of volume and temperature is used to illustrate the law.

This learning activity presents information on how the type of material used for the dielectric of a capacitor affects the capacitor's value in farads.

In this simulation activity, an electrician troubleshoots a defective water pump 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.

In this learning activity you'll discover the disconnected nature of the HTTP request-response model including some methods of persisting state and the security implications.

In this learning activity you'll establish your budget by determining your earnings, expenses, and goals.

In this learning activity you'll identify correctly formatted MLA citations.

In this interactive and animated object, learners use solubility rules to predict when an insoluble ionic compound will precipitate in a double replacement reaction. Step-by-step examples are given.

In this learning activity you'll solve three binary subtraction problems using the 2's complement method.

In this animated object, learners examine a closed-loop feedback system that uses digital circuits to control the position of a gear rack.

In this learning activity you'll apply the Law of Sines in the solution on an oblique triangle when provided with two angles and the side opposite one of the angles.

In this animated object, learners examine the eight cranial bones, the fourteen facial bones, and the ribs.

In this learning activity, you'll discuss shifting perceptions of parents at different life stages.

Learners examine microscope images of blood agar and the various types of hemolysis that can be detected. A quiz completes the activity.

This animated lesson shows how a ladder circuit uses timer-on delays to cause an extrusion machine to operate.

In this simulation activity, an electrician will troubleshoot an AC motor that is overheating. Before accessing blueprints and then using a multimeter to find the fault, the learner will follow safety protocols by following lock-out tag-out procedures and then suit up with appropriate (PPE) personal protection equipment.

In this animated object, learners examine how a coil of wire provides more resistance to AC current flow than an uncoiled wire. This learning object contains audio.

In this learning activity you'll explain how voltage and resistance in a series circuit affect current flow.

Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.

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