In this animated and interactive object, learners identify musculoskeletal fractures.

Learners test their spelling ability by identifying misspelled words from lists of words commonly used in business.

In this learning activity, you’ll explore the Common Language Runtime, or CLR.

In this learning activity you'll explore three common network protocols that computers use to communicate in a network.

In this interactive object, learners match physiological, mechanical, or other parenteral nutrition complications with the appropriate nursing care.

In this learning activity, you’ll explore the Data Definition Language (DDL) including its three main commands: CREATE, ALTER, and DROP.

Learners examine what defines a fungus and read how fungi differ from animals and plants.

In this animated object, learners examine the procedure used to determine the types of terminals on a single-pole, double-throw switch.

Learners follow steps to add fractions with different denominators. They also review fraction concepts, do a drag-and-drop exercise involving fraction terms, and add fractions with common denominators.

Students read an explanation of the common-source and source-follower amplifiers. Gain formulas are developed and an example is given.

In this quiz you'll identify common hand tools by their function.

Learners examine a table containing the names of common cations and anions.

The learner will recognize common gestures and identify the meanings associated with those gestures.

Learners examine animations of the most common transmission signals used in automated systems, such as 4 mA to 20 mA, 3 psi to 15 psi, and 0 to 10 volts. A brief quiz completes the activity.

In this animated object, learners examine the structure and function of intracellular and extracellular fluid. They also read about the most common electrolytes in the body and complete a matching exercise to test their knowledge.

In this interactive object, learners identify common characteristics of people who are likely to vote.

The learner will define indirect measurement, identify common indirect measuring tools, and select the proper measuring tool for the situation.

Learners consider the most common types of electromagnetic waves and the kinds of hardware used in a wireless network. A short quiz completes the activity.

In this learning activity, you’ll explore the characteristics of common, carbon steel shielded metal arc welding electrodes, which fall under American Welding Society specification A5.1.

The learner will understand how to measure a problem over time by using a common run chart to visualize the gap between past performance and future goals.