The student reviews definitions of all ready/already and completes a practice exercise.

In this learning activity you'll discover how your visual perception influences your understanding of ambiguous figures.

Introduces two methods of determining bend allowance; one is simple and is an approximate, the other is more precise. Interactive part has learner calculate bend allowance and blank size.

Learners answer questions about nonferrous metals and alloys using a game show format. Immediate feedback is provided.

Learners answer questions about ferrous metals and alloys using a game show format. Immediate feedback is provided.

Learners tackle this interactive learning object after studying the mathematics of buying. This activity ties together the ideas of net cost, list price, trade discounts, cash discounts, net cost equivalent, and single discount equivalent, as well as the concepts of part, base, and rate.

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

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 follow an EMT response at a restaurant involving a woman with slurred speech who has weakness on her right side. Students examine response procedures, resources, and medications.

In this learning activity you'll create a packet filter.

Students solve five problems to determine the total impedance of a series-parallel circuit. Immediate feedback is given.

In this learning activity, you’ll explore the Waterfall model and its application to software development.

By playing a game of tic-tac-toe, a student can review what happens to currents and voltages throughout a parallel LC circuit when the applied frequency increases from 0 Hz toward resonance.

Learners examine the current and voltage changes in a series-parallel circuit as the resistance value of a rheostat is varied. Illustrations and calculations are included.

The learner reads an explanation of all of the elements that comprise a future-state map. A map is shown.

In this animated activity, learners examine the operation of normally open and normally closed valves used in hydraulics. A brief quiz completes the learning object.

Learners solve for voltage, current, and power in a single source, six-resistor circuit. A help screen is provided.

In this learning activity you'll practice solving for the total resistance of series-parallel DC circuits.