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Pitch: Super Sounding Drums

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The construction of a drum -- the materials it is made of, its size and shape, and the tension of its top, or drumhead -- all affect how the drum sounds. In this video segment, two members of the ZOOM cast create drums of different sizes, shapes, materials, and tensions, and compare the results.

This video is available in both English and Spanish audio, along with corresponding closed captions.

Balloon Brain: Designing a Helmet

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As humans, we thankfully have more going for us than the balloon brains depicted in this video segment adapted from ZOOM. Still, the failed efforts of some of the ZOOM cast members to design adequate protection for their balloon brains illustrates the importance of wearing a proper helmet and protecting your own brain whenever you skate, rollerblade, ski, or ride a bike.

Rivers | Science Trek

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This video segment from IdahoPTV's Science Trek takes you down Idaho's Snake River as it explains river formation, use, and terminology. What is an inner and outer bank, an oxbow, a meander and what makes rapids, are some of the questions that will be answered.

Triangles: Designing a Newspaper Chair

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Once it's been read, there's often little more to do with the daily newspaper than to add it to that towering stack of recyclables we collect each week. In this video segment, however, the ZOOM cast demonstrates how innovative design can turn this otherwise flimsy material into a relatively solid piece of furniture.

Kid Inventor: The Collapsible Lacrosse Stick

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Many inventions are born of a need to be able to easily store or transport an item without negatively affecting its intended function. In this video segment from ZOOM, a young inventor named Lauren explains the motivation behind her collapsible lacrosse stick.

Turtle Defense

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In this video from the WPSU’s series Outside, a staff member from Shaver’s Creek Environmental Center at Penn State University explains how some species of turtle protect themselves in their environment. Turtles, like many other species, are facing obstacles that threaten their survival. Some of these obstacles have threatened turtle survival for centuries, while others have emerged more recently and are caused by human activities.

This video is available in both English and Spanish audio, along with corresponding closed captions.

Wolf Research | Science Trek

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This video segment from IdahoPTV's Science Trek shows the process a research biologist goes through to trap, measure and put a radio collar on wolves.

A World Tour of Clocks

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In this video segment from Cyberchase, Harry discusses the importance of telling time and describes the ways that people are able to keep track of time. He describes a variety of different timekeepers, such as clocks, watches, and hourglasses. He also discusses the difference between digital and analog clocks.

Film Shoot: Day 4

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In this video segment from Cyberchase the CyberSquad is shooting a film. On their fourth day of filming, they hope to shoot an extra scene, which means their film supply costs will go up. They look at their budget and find that if they lower their crew costs, they can film the extra scene without going over their budget for the day.

Keeping Track of the New York City Marathoners

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In this video segment from Cyberchase, Bianca has volunteered to help count the number of runners participating in the New York City Marathon. She must keep track of the runners as they pass a certain checkpoint on the course. There are at least 30,000 runners, so she has to develop a good strategy for counting such a large number of people. She tests out a few options, but finds that an abacus may be her best tool.

Sharing Candy Among Gargoyles

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In this video segment from Cyberchase, the CyberSquad must divide up thirty-five pieces of rock candy evenly among seven gargoyles in order to stop Hacker’s control over the gargoyles. Jackie suggests that they figure it out by sharing the pieces of rock candy in rounds, but Inez has a better idea. She thinks that using numbers will allow them to solve the problem faster.

Estimating Costs, Estimating Profits

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In this video segment from TV411, Franklin works with Laverne to create a budget and understand his pay for a job painting a room. Franklin is not sure if he should take on a job where he will be paid $250 for painting a friend’s family room. He must take into consideration the cost of supplies as well as how long the job will take him. He consults with Laverne and realizes he has to make some estimates to come up with the budget for the job.

Predicting Travel Time Using Line Graphs

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In this Cyberchase video segment, Harry wants to visit his grandmother. He decides that the cheapest way for him to get there is to travel by unicycle, but he wonders if he can get there before dark. Using a line graph, he tries to predict the amount of time it will take to travel the twenty miles, assuming he travels at a constant speed. Once he sets out on his unicycle, he charts his progress on a new line graph. After the first hour he appears to be ahead of schedule, but he is not able to keep up the pace and soon finds himself falling behind.

Raising the Bar | Cyberchase

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In this video segment from Cyberchase, Harry and Bianca have new jobs at a movie theater concession stand. They compete with each other to see who can sell the most snacks, and they report their sales using bar graphs. When their graphs are compared, it appears that Harry has sold more, but Bianca is not so sure, so she takes a closer look at the scale of each graph.

Planning a Paper Route

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Harry agrees to take over his brother Pete's paper route for a week. After starting the job, he realizes the route was not planned out very well. He tries to rework it by analyzing the list of addresses. After making some adjustments to his list, he is able to create a new, easier and more efficient route.

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