Learners will examine how cardiac markers are used in the diagnosis of cardiac disease.

The learner will learn how to understand, interpret, and correlate cardiac marker test results.

In this interactive object, learners demonstrate their knowledge of the in-depth checklist a pilot uses on a regular basis.

Learners read definitions of discrete, continuous, attribute and variable data and view examples of checklist, location and item check sheets.

In this animated print reading exercise, the learner calculates missing dimensions and identifies surfaces on projected views.

In a series of interactive exercises, learners identify the parts of a URL, a Web site, and an e-mail memo. Students are given their score at the end of the activity.

Students view a map of the countries that surround the Black Sea and test their knowledge in an interactive exercise.

This review tests the student's knowledge of lathe operations in chucks.

Know the threats. Block the breach. This module breaks down how common web attacks like SQL Injection and Cross-Site Scripting work—and how to stop them.

Learners examine how a ladder logic circuit becomes latched when a normally open pushbutton is momentarily pressed.

Learners watch a video of a walk around inspection of a rough terrain lift truck from front to rear. Note: This object contains video clips. High-speed Internet is highly recommended.

Learners read a list of issues to be considered when traveling internationally, such as the beliefs, communication styles, gift-giving customs, and entertainment preferences of people in various cultures.

In this animated learning object, students read about the backflow of contaminated water and how to prevent it.

Learners study the effect of reflected and transmitted energy on the measurement of emitted energy by a non-blackbody. A short quiz completes the activity.

This screencast shows the symbols used to represent the type of pulse required at the clock input to activate flip-flops.

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

2D and 3D views used to help convey information from a drafter or designer to the welder are provided. This activity will focus on a three-step block. A short quiz to test your ability to correctly read this information follows.

This video will walk you through operation of the Kearney & Trecker Milling Machine Operations.

Learners test their ability to visualize a three-step block in this interactive exercise that features animated pictorial views.

In this video, you’ll explore how to set up the chuck, face your part using a left-handed and right-handed tool, center drilling, and facing the part to length.