This lesson provides a drawing with steps to complete the activity.

In this screencast, learners examine why the piston of a hydraulic cylinder extends slower than it retracts. A brief quiz completes the activity.

In this animated object, learners examine how to find the center of gravity of a steel rod and of a two-dimensional shape.

Learners apply knowledge about how productivity is reflected in people, processes, and goals.

In this learning activity you'll construct a production possibility model.

In this learning module you'll become familiar with different types of GTAW electrodes.

In this interactive object, students view an animated depiction of Class 3 levers. A matching quiz completes the activity.

Learners examine how to multiply the gate propagation delay by the gate power dissipation to find the speed-power product. Examples are shown.

The learner will understand the operation of motor control circuits used to start and stop three-phase motors.

In this learning activity you'll be introduced to the layout and operation of the solderless breadboard.

In this animated activity, students read about weight-volume relationships within a given sample of soil or aggregate. They complete problems using a 3-phase diagram.

In this interactive object, students view an animated depiction of Class 1 levers. A matching quiz completes the activity.

The learner will evaluate powers of 10 with integer exponents and multiply decimal numbers by powers of 10 with integer exponents.

In this screencast, students read about the basic organization and structure of the periodic table of elements. Students identify elements as belonging to a group, a period, or neither.

Students view a video that shows the correct methods for starting a GTAW weld pool and adding filler. It focuses on the two problems that many students have – adding filler too soon and angling the torch so that the filler melts prematurely on the filler rod. Note: This activity is 3.6 mb.

In this animated object, learners consider how nanoscientists are mimicking intracellular movements when building nanobots.

Learners will identify their learning styles and practice ways to retain information in class and on the job.

Learners examine the meaning of theoretical yield, actual yield, and percent yield. They test their knowledge by solving two problems.

Learners will understand how the interaction of the armature magnetic field and the rotating stator field cause the rotor of a single-phase AC motor to turn.

In this animated object, learners read about the uses of nanotechnology. The sciences, engineering, electronics, and other disciplines converge in nanotechnology. Examples are given for applications in manufacturing, biomedicine, and environmental science. Concerns about possible environmental effects are discussed.