Arrangement 2

In this video segment from Cyberchase, Matt tries for a second time to arrange tables and chairs to accomodate 20 workers.

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Arrangement 3

Matt’s third table arrangement helps fit all 20 workers at five tables in this video segment from Cyberchase.

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Art That Tells a Story

This interactive activity, adapted from material provided by the ECHO partners, presents nine art objects and shows how they can reveal different types of stories.

Ask an Engineer

Explore some of the wonders of modern engineering in this video from the Sciencenter in Ithaca, New York. Hear a diverse selection of engineers explain how things work.

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As the Crow Flies

In this video from Nature researchers from the University of Washington conduct a long-term experiment to see if crows can pass information down from one generation to the next.

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Astronomical Images in Different Wavelengths

Visible light is just one portion of the electromagnetic spectrum that a telescope may detect. This collection of images produced for Teachers' Domain features radio wave, infrared, visible light, and X-ray images of distant stars and galaxies as well as images of the telescopes designed to detect the various wavelengths of radiation.

Ataturk

This Wide Angle video segment illustrates Islamic and secular elements of life in Turkey, and introduces Mustafa Kemal Ataturk, the first president of Turkey, and his reforms.

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ATE Internships and Co-ops

In this video adapted from ATETV, learn how Bristol Community College promotes internships and co-ops to prepare students for work in technology-related careers.

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The Atlanta Riot

Learn about the events leading up to the Atlanta Riot of 1906 in this segment from The Rise and Fall of Jim Crow.

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Atmospheric Oxygen

In this feature, adapted from Interactive NOVA: "Earth," students explore the relationship between oxygen concentration and the well-being of various organisms by simulating a change in oxygen levels and observing what happens.

The Atom

In this interactive activity from ChemThink, take a closer look at atomic structure, properties, and behaviors.

Atoms: The Space Between

This video segment adapted from A Science Odyssey takes a look at the scale of the atom and the tremendous amount of space between the electrons and the nucleus. If all this empty space exists in matter, how can any substance be solid?

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Atrazine Affects the Water Supply

In this video segment featuring live-action animation, adapted from Big River: A King Corn Companion, see how the agricultural pesticide atrazine impacts both crops and human health.

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Attention to Scaling

In this video segment from Cyberchase, the CyberSquad adds a scale to their bar graph to give a more accurate picture of the bug infestation at the Cybrary.

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At the University of Brasilia

Consider the opposing views on the policy implemented at the University of Brasilia in this Wide Angle video.

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Automatic Door Opener

In this video segment adapted from ZOOM, watch the design process in action as cast members create automatic door openers to open their bedroom doors while still lying down.

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Avalanche Town

The impact of natural disasters is made vivid in this video segment adapted from NOVA. A small town in Iceland, prepared for recurrent avalanches, is devastated when one takes a new and damaging path.

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Average Practice Time

In this video segment from TV411, figure skaters compute their average daily practice time.

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Backyard Birdfeeders

This video from WPSU’s series Outside suggests how to feed birds in winter, a hobby that can foster awareness, care, and respect for birds.

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Empowerment

This video from Women, War & Peace demonstrates the power of women and suggests that presence of women at peace talks is essential.

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