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 animated and interactive object, learners identify musculoskeletal fractures.

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

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

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

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 three common network protocols that computers use to communicate in a network.

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.

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.

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

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

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

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

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

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

Learners read about the most common forms of financial statements including balance sheets, cash flow statements, and profit and loss statements. A brief quiz completes the activity.

Students read about the six common terms used to represent the powers of ten in the field of electronics and complete two matching exercises.

Learners use the lowest common denominator to simplify and then solve equations with algebraic fractions. Immediate feedback is provided. This animated object has audio content.