In this interactive object, learners practice their 3D visualization skills by identifying the correct isometric view of an object. Front, side, and top orthographic views are shown.

In this interactive and animated object, learners examine orthographic projection and the Glass Box Theory. Front, side, and top view development is demonstrated with pictorial views of each object to help develop 2D to 3D visualization skills.

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

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, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated.

Learners follow a methodical approach for the dc analysis of series-parallel circuits.

Students view drawings of the dc analysis of a voltage-divider biased NPN transistor.

In this interactive object, learners work 12 problems dealing with dc circuit analysis.

The superposition theorem is explained as it relates to dc circuit analysis. Examples are given.

Learners analyze a base-biased npn transistor circuit. A "help" screen is available.

In this animated and interactive object, learners follow two rules to write unit conversion fractions.

Learners examine a series-parallel circuit and solve 14 problems related to voltage, current, and power. A help screen is provided.

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 pictorial drawings used in engineering including sectioned and exploded drawings. A sketching quiz is provided to help the learner create simple pictorial sketches by using orthographic views and an isometric template.

Learners identify the parts of speech by following a certain order until each word in a sentence is labeled. In a variety of exercises, learners practice finding verbs, prepositional phrases, subjects, nouns, pronouns, adjectives, adverbs, and conjunctions.

Learners examine the use of the tolerances displayed in a title block by calculating the minimum and maximum allowable size of a fabricated part. In a brief quiz, students determine whether a part is usable or should be scrapped.

Learners examine a series-parallel circuit and solve 14 problems related to voltage, current and power. A help screen is provided.

This learning object introduces the student to the calculations involved in a sieve analysis -- including percentage retained and percentage passed.

Students read an explanation of "superposition" as a technique for ac circuit analysis. Complex numbers are used.