In this learning activity you'll review three interpretations regarding the separation of church and state.

In this learning activity you'll discover how visual perception of size is influenced by what's surrounding an image.

Learners read about audiological tests including pure tone testing, air conduction, bone conduction, Speech Reception Threshold, and Speech Discrimination Score. They listen to sounds and words recorded at different decibel levels and see a graphic representation of decibel ranges. A brief review concludes the activity.

Learners view a mind map of the social-conflict Approaches and answer questions about the inequalities, competition, and power found in social structures.

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

Learners match diseases with their portals of entry, causative agents, and associated vectors.

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

Learners observe that the volume of one mole of any gas is 22.4 L at standard temperature and pressure. An illustration shows that only the mass of the molar volume differs with the identity of the gas.

In this learning object you'll review direct, inverse, joint, quadratic, and combined variations.

Learners combine Boyle's Law and Charles's Law to solve for the pressure, volume, and temperature of a gas sample under two sets of conditions.

In this learning activity you'll be introduced to the Post hoc, Ergo Propter hoc fallacy.

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 learning activity you'll explain your placement of five people somewhere withing the circle of familiars chart.

In this learning activity you'll observe information and formulate an evaluation that includes diagnosis and microorganism identification.

In this learning activity you'll explore five types of power: legitimate, referent, coercive, reward, and expert.

In this exercise, students read a list of sources used in a research report. They follow MLA guidelines to write parenthetical references and to compile a Works Cited page.

In this learning activity you'll complete exercises matching possessive pronouns and antecedents.

In part 2 of this series, learners follow the steps of the “mathemagician” to examine these numerical curiosities: The 189 Challenge; An Armstrong Number: What’s Special About 153? Is 495 Different or Indifferent? Is 6174 Different or Indifferent? It is always 618, and Beginning and Ending the Same.

In this learning activity you'll review the basic three step writing process used by many writers.

Writers block happens to all of us. Homework block is even worse. If you’re stuck on how to get started, watch this video to explore how to generate ideas for speeches, papers, and projects quickly and effectively.

In this interactive object, learners change the amount of money received from tax revenue and the amount spent on federal programs as they calculate how fiscal policy affects the gross domestic product (GDP), unemployment, inflation, the annual deficit, the national debt, and interest on the national debt.

In this animated activity, learners read and listen to a dialogue in Mandarin Chinese in a grocery store setting. The learner can then click on photos of fruits and vegetables to hear their pronunciation in Mandarin.

In this interactive object, learners match Mandarin Chinese vocabulary words to items found in a classroom.

Learners read definitions of the terminology associated with algebraic operations and then follow steps to use the fundamental laws of division to simplify algebraic expressions.

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