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.

Learners identify combination, decomposition, displacement, and combustion types of redox reactions. They also watch a video clip that demonstrates the reaction of sodium and water.

In this interactive and animated object, learners follow instructions for finding the lowest common denominator for a group of algebraic fractions. Immediate feedback is provided. This activity has audio content.

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.

Learners practice a technique for finding the least common multiple of a group of numbers.

In this interactive object, learners read the common abbreviations used in engineering drawings and then test their knowledge in three short exercises.

The target audience of this learning object is trigonometry students who have already learned what a radian is and have already derived the key values of the coordinates associated with common radian units, but now need to practice finding those values on the unit circle. The student does not need to know the definition of the six trig functions to do this activity.

Learners read an explanation of variation and how it can make a process unpredictable. They distinguish between common and special causes of variation in a brief exercise at the end of the lesson.

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.

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

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

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

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.

In this learning activity you'll be introduced to the eight most common logical fallacies commonly used in persuasive speeches.

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

Learn about the seven common barriers of listening and evaluate a conversation using the barriers.

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.