The student reviews definitions of principle/principal and completes a practice exercise.

Learners read about how universities, government agencies, energy companies, and nanotech firms are working together to use nanotechnology to help produce clean water for consumption.

Learners examine the meaning of theoretical yield, actual yield, and percent yield. They test their knowledge by solving two problems.

Learners view movie clips to determine the solubility of two ionic compounds. They also examine a solubility chart and predict the solubility of compounds.

In the interactive object, learners examine the structural-functional, social-conflict, and symbolic interaction analyses of media. A mind map and quiz questions are included.

In this animated activity, learners listen to instructions for simplifying a complex fraction by finding the least common denominator. This learning object requires a computer that is equipped with speakers.

The learner visits a Chinese restaurant to learn how to order from the menu in Mandarin Chinese. This activity has audio content.

In this animated and interactive object, learners examine the definitions and formulas for radius, diameter, circumference, and area. Students also solve practice problems involving the circumference and area of a circle.

In this learning activity you'll practice selecting the pronouns that best fits with the noun.

Users study a chart containing numbers 1 to 99 and look for trivial palindromes as well as double and triple iteration palindromes. The reverse and add technique is demonstrated.

The learner reads a brief explanation of how to use Mandarin Chinese monetary terms in formal and colloquial speech. The learner can then click on a term to listen to its pronunciation and see its value.

In this learning activity you'll evaluate the determinant of a 3 X 3 matrix.

Learners follow step-by-step instructions for dividing algebraic fractions. They begin by reducing the fractions to their simplest form. Immediate feedback is provided. This activity has audio content.

Equilibrium plays a vital role in our lives. We'll show you how the equilibrium formula works in real life using our friend the chicken.

Discover the truth behind commonly held beliefs about the American family.

In this learning activity you'll complete a skill-building exercise identifying effective nonverbal behavior.

In this learning activity you'll discover three factors that affect group performance: group cohesiveness, communication structure, and individual roles.

This learning object demonstrates the process by which antigens are identified, processed, and presented to mediators of the cellular immune system.

Students read about the greeting customs of people in different parts of the world and take a short quiz.

In this learning activity you'll write a technical description of a padlock.

Learners examine microscope images of blood agar and the various types of hemolysis that can be detected. A quiz completes the activity.

Students make observations and formulate an evaluation that includes diagnosis, microorganism identification, and treatment.

In this learning activity you'll use a chart and a calculator to find prime numbers 1 and 100.

Imagine you're a college student volunteering in a lab that includes animal research and you're trying to decide if this would be a good experience. Play through this module to understand the regulations for animal well-being and how they impact animal welfare. Prove you're an Animal Welfare Whiz!