Students learn about an American Muslim's impressions of his first pilgrimage to Mecca in this video segment from Religion & Ethics Newsweekly.

A dining hall at Dartmouth College accommodates the religious dietary requirements of Muslims, Jews and Hindus as explained in this video from Religion & Ethics Newsweekly.

Harry keeps track of the number of times he sneezes in certain locations to try to diagnose the cause of his allergy in this video segment from Cyberchase.

Harry and his students look at various arrangements of classroom desks in this video from Cyberchase.

This video segment from Nature explains the geologic forces behind the creation of HawaiiŒë_í_Œ_ dramatic shoreline.

Learn how a cow eats and digests food in this video segment from Nature.

In this video segment from Cyberchase, Inez estimates whether she has enough jelly beans in her large container to decorate all of the cookies in her batch.

Learn how the Hawaiian Islands were formed by a geothermal hotspot and resulting volcanic activity in this video segment from Nature.

This video segment from The Human Spark features a discussion about how human thought differs from that of chimpanzees.

Learn about the wildebeest and locusts on the move in this video segment from Nature.

Learn where diamonds originate and how inclusions trapped within diamonds help geologists determine their age in this video segment from Nature.

The CyberSquad creates a bar graph representing the amount of bugs that are infecting the Cybrary in this video from Cyberchase.

In this Cyberchase video segment, the CyberSquad locates the Cyberchase Council by using negative numbers.

Members of the Islamic Center of Washington, DC discuss the religious and spiritual significance of Ramadan and the celebration that concludes it, Eid al-Fitr, in this video segment from Religion & Ethics Newsweekly.

In this Nature video, follow geologists as they retrieve samples from a fresh batch of Kilauea's molten lava.

Through scientific research, this video from The Human Spark illustrates how a child’s views of what is right and wrong can be shaped by others.

After their carts collide in a hardware store, two teachers discover that they both bought the same items in different quantities. With limited information, this segment demonstrates how to use an equation to determine the cost of each item.

Students practice using algebraic expressions by recording data from a video segment in which two staircases ascend at different rates. They record the patterns in two-column tables, draw line graphs and write simple algebraic relations.

This Nature video shows the migratory patterns and habits of the Rufous hummingbird.

A patient discusses diabetes and how he manages his carbohydrate intake in this video segment from TV 411.