In this animated and interactive lesson, learners examine additive and subtractive color theories.

In this screencast, learners read an explanation of the color code used on schematic diagrams for hydraulic circuits. Circuit examples for each color are shown.

In this learning activity you'll build a resistor's color code based on the bands.

In this animated object, students examine the shades that result from mixing primary and secondary colors. Color tone and level are also defined.

In this interactive object, students complete progressively more difficult exercises as a way to improve their ability to recognize resistor color code values.

In this interactive activity, students read about the colored stripes on a resistor and interpret the placement of those colors to determine the value of four-band resistors.

This interactive learning object is designed to help learners memorize the color code used on some hydraulic schematic diagrams. Learners quiz themselves using electronic flashcards.

In this animated and interactive object, learners use a color code to understand the operations of a hydraulic circuit. A brief quiz completes the activity.

In this animated activity, learners examine what gases are composed of and how their particles interact. They also consider several assumptions that form the basis for the Kinetic Theory of Gases.

Learners see and hear how motivation on the job can be compared to the use of a bicycle. They then write an explanation of how this theory can be applied to a situation in their own workplace.

Students examine how to interpret resistor color code bands to determine resistance values and tolerance ranges. This interactive learning object has audio content and includes exercises.

In this animated object, learners pop balloons to see the medical term for a color or condition.

In this colorful, interactive object, learners examine how materials on the nanoscale compare with those on the macroscale. The focus is on the difference between macroscale and nanoscale gold in both color and melting point.

In this learning object you'll review color photographs of a Brown & Sharpe Universal Cylindrical Grinder.

In this interactive object, learners review descriptions of various blood collection tube additives. They then test their knowledge by matching the different tubes to their corresponding additives.

Learners read how they can make menus more pleasing to the senses by paying attention to shape, form, texture, temperature, color, flavor, and visual appeal.

In this learning activity you'll identify examples of Eric Berne's theory on transactional analysis.

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.

Explore welding electricity fundamentals including electron theory, parts of a circuit, welding power sources, and types of current.

Learners examine the theory of operation for a combustible gas detector. A brief quiz completes the activity.