In this interactive object, learners read an introduction to Class 1, Class 2, and Class 3 levers and then take a quiz.

Learners examine the formulas for calculating work in ft-lb units and power in ft-lb/min. units.

In this interactive object, students explore the basic elements and common terms associated with dimensions and leaders. A quiz completes the activity.

Learners examine the drawing symbols used for counterbore, countersink, spotface, radius, diameter, and depth. In the quiz that completes the activity, they associate these symbols with machining applications.

In this interactive object, learners practice their 3D visualization skills by identifying the correct isometric view of an object.

Learners read how to determine the location of a contour for a specific location given a TIN.

This interactive learning object demonstrates how the moisture content is determined for a given sample of soil or aggregate.

In this screencast, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations.

Learners develop 3D visualization skills by examining front, side, and top orthographic views of objects. Using this information, students select the corresponding isometric view of each object.

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

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

In this animated and interactive object, learners examine the formula for horsepower and work practice problems.

Learners read how to convert complex numbers to their polar equivalent in Excel.

In this animated and interactive object, the learner uses a TI-36X calculator to solve for the magnitude of the resultant and of one of the component forces in a right triangle.

Learners read about the characteristics of a lean/six sigma culture.

The conversion from rectangular to polar mode phase angle in radians is demonstrated in Excel.

In this interactive object, learners examine sectional views used in engineering drawings. The sections shown are full, half, offset, aligned, revolved, and broken-out. Learners match drawings of sectional views with the names of the views.

In this interactive object, learners answer 25 questions regarding part or assembly drawings. The basic areas of blueprint reading are covered.

Learners examine the basic types of dimensioning including unidirectional and aligned systems, and linear, aligned, angled, arrowless, chain, datum, chart, tabular, radius, diameter, typical, and reference dimensions.

Learners follow step-by-step instructions for calculating the square root of a number using the TI-83 Plus scientific calculator. Steps for determining impedance are also shown.

Learners view the steps to find the complex conjugate of a number using the TI-83 Plus calculator. They are encouraged to work the examples given.

Learners view the steps for determining the square root of a complex number in Excel.

Students view the steps for dividing complex numbers in Excel.

Students read how to determine the elevation of an alignment or cross section where it crosses the TIN.

Learners examine the information on a title block and answer questions about that information in an interactive quiz.