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Parasitic Wasps & Aphids
Black wasps have their own tactics and methods when it comes to pest control. In this vdeo, the plants send out a chemical message to wasps when attacked by aphids. The wasps lay eggs in the aphids, and the larvae kill the aphids. Grades 5-12. 2 min.
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The Language of Mathematics (10): Finding Prime Factors
The instructor continues in his series by discussing prime numbers and rational and irrational numbers. How many numbers are there between 1 and 20. This instructor says there are only nine numbers between 1 and 20. Watch this video and find out why. He assumes his audience is a high school audience, but middle school and upper elementary may benefit from this video as well.
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[Vocabulaire] La Maison
Learn French by learning vocabulary words concerning the outside of the house. As the native French speaker recites the words, an area is highlighted in red as the French words appear on the screen. There is no English spoken. Each French phrase is spoken once. For beginning to intermediate learners. To better see where the highlighted area is pointing, the viewer may benefit from opening the video 'full screen'.
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The Arts in Every Classroom: Working With Local Artists
Students and teachers at P.S. 156 (The Waverly School of the Arts) in Brooklyn, New York, benefit from the school’s established relationships with artists from local organizations. This program focuses on a first–grade class creating original works with visiting artists — a dancer and a writer.
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Bean Sprouts
Pairs of second-graders explore subtraction, based on the number of
plants sprouting from the bean-seeds they have planted. The importance of context for student understanding, and various approaches to problem-solving, are exemplified. NCTM Standards: concepts of whole number operations, reasoning, problem solving, communication.

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Conversations With Student Writers
The program demonstrates how teachers incorporate conferences with students into their writing instruction. Viewers will see how teachers structure conferences, choose a teaching focus for the conference, and keep records of their interactions. The emphasis is on practical strategies and on the fundamental benefit of responding personally to student writing.
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Biology: Why Are Some Ideas So Difficult?
Focuses on the need for conceptual understanding and examines the scope of student ideas by exploring the central idea of photosynthesis, that the substance of plants comes mostly from the air. This innovative workshop for teachers explores the reasons why teaching science is so difficult and offers practical advice to help you teach more effectively.
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Introduction to Journey North
This program introduces the three sets of investigations that are featured in the Journey North program: Seasonal Migrations, Plants and the Seasons and Sunlight and the SeasonsAuthor(s): No creator set

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Workshop 5: Sunlight to Starch
n this program participants will explore how plants get their food. Starting with seeds, which have their own source of food, the program traces the growth of a plant, the development of chlorophyll in its leaves, and the production of sugar (and starch) in a process known as photosynthesis.
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Workshop 6: Energy and Ecosystems
In this program, participants are shown that light energy that has been absorbed by plants during photosynthesis and transformed into chemical energy can now be transferred to other organisms. Energy is contained within food molecules such as sugar and starch made by plants, therefore when animals eat plants, or eat other animals, the energy is passed to them. However, the transfer of energy between plants and animals is inefficient and there are energy losses.
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Math in the Real World
This is a photo slide show presentation designed to engage students to think about  "How might math have been used to ...". showing several examples: a building, a space shuttle, a cell phone, etc. No narration. Thought provoking.  Hosted by Slideshare.  Viewer sets the pace by clicking through the 8 slides. 
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A Human Story of Computer Animation
It took 20 years of dreaming, planning and ingenuity to create Toy Story, the world s first computer animated full-length feature film, in 1995. It represented a significant departure from the long-established methods of animation, where artists would hand draw characters frame by frame, and painstakingly incorporate movement and color to complete a feature film. Today, thanks to advances in computing power and ingenious software, there is little separation between the refining of an idea and it
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Cell References
 The Excel Basics Series shows a systematic description of what The topics include:
1)Mixed Cell References, Assumption Table Orientation, Range Functions and Inserting columns
2)Mixed Cell References in Formulas and the orientation of the Input Values
3)Formula Input Value setup is critical for efficient formula creation
4)The beauty of Excel is illustrated in this video: Amazing Efficiency example. (10:26)

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Protecting Reputations Online - In Plain English
"This video discusses the long-term risks of sharing inappropriate information on the Web. It encourages viewers to “think before you click” and offers tips for being responsible with photos, video and stories. Point include:

Why photos are permanent on the web
Future consequences of sharing inappropriate info
Tips for protecting reputations (personal and friends)
What to do when inappropriate info is shared."

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Plants that Make Spores
There are ten basic divisions in the Plantae kingdom, and only 5 that are spore bearing. Spores are special cells used in asexual reproduction. Learn about the plants that make cells in this short clip. Examples and photos are provide for the mosses, liverworts, horsetails and ferns.  (2:34)
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Plant Examples of Asexual Reproduction
This short video is about plants that have not grown from seeds but are reproduced asexually. Some examples from the video include bulbs, liverworts, plants with cuttings, and strawberry plants with runners. Run time 02:56.
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Liverworts, Mosses, and Ferns
This video gives a quick overview of some different types of spore-bearing plants. Dr. Matt von Konrat explains the reproduction of liverworts, mosses, and ferns to a high school group of students.  Audio is poor but information is good.  Run time 07:50
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Peachtree Rock Heritage Preserve: The Longleaf Pine Ecosystem
Conservationists know that the Longleaf Pine Forests of the Southern U.S. consist of much more than just its trees. They are complete ecosystems of plants, animals and natural processes including fire, rain and soil mineralization. Estimates show that over the last century, longleaf pine ecosystems have dwindled to less than 3 percent. Once thought to be inexhaustible, these forests were exploited for their lumber and turpentine products. Today, restoring these habitats to pre-settlement conditi
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Tradition is not a business model - Jonathan Worth, New Photographics
...at the core of journalism is the idea that once garnered, information possessed by the journalist must be coveted and hidden. It's value is it's exclusivity. We've got something that we have to share but in traditional business models the only way to consistently realise the material benefit is to sell it exclusively. This can't be the most efficient way of getting our work seen or heard. Assuming that sharing was the journalist's original intent, then this method must be at odds, in fact I s
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Digital Inequality - December 7, 2009
Lunch 'n Learn presentation: In the Internet's early years, some observers believed that the new technology would reduce social inequality in at least two ways. First, by reducing the price of information, it would make information more available, and therefore level the playing field. Second, because young people appeared to have the inside track in mastering and using the new technologies (and because youth is negatively associated with wealth and uncorrelated with other indicators of socioeco
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