Tangent Ratios
This video explains how tangent ratios, along with cosine and sine ratios, are ratios of two different sides of a right triangle. Tangent ratios are the ratio of the side opposite to the side adjacent the angle they represent. In order to find the measure of the angle itself, one must understand inverse trigonometric functions. (2:01)
Author(s): No creator set

Lugosi teaches math - convergence of series
BÃ©la Lugosi teaches advanced mathematical concepts in this video. This is part of the last lecture of his series. He begins this lecture by talking about the Weierstrauss M-Test and talking about how a series or sequence of sums converges. Â In his lecture he provides the steps for this test, and proofs as well. Â A great video for advanced math learners. (Calculus and Calculus II students).
Author(s): No creator set

University of Memphis students say Thank U to the donors who have helped them.
Scholarship recipients at the U of M share their gratitude to the generous donors that enable their dreams of a college degree a reality. http://www.memphis.edu/give
Author(s): No creator set

Alphabets A to Z for Kids
Practice the letters of the alphabet with pictures for each letter. Â Animated clip art pictures follow a slide of the upper case letter and the model word. (2:33)Â

Author(s): No creator set

Orchestrating cell separation in plants : what are the risks and benefits?
In this podcast, Professor Roberts from the School of Biosciences discusses his research into the mechanism responsible for regulating cell separation in plants. In particular how plants â€˜shedâ€™ parts of themselves such as leaves or fruit. Professor Roberts explores the potential application of his research, through prevention or encouraging of the â€˜sheddingâ€™ process, agricultural harvests could potentially be increased or even synchronised. Professor Roberts also discusses the resistanc
Author(s): Roberts Jerry Professor

How to Write Bubble Letters
In this clip learn how to make bubble letters.Â  The craftswoman shows how to write rounded like bubbles, squared-off shape letters,Â  or in a block shape. Stylize bubble letters can be use for a decorative touch.

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How to Make a Book for Younger Children
A two minute video on how younger children can write, draw, and decorate a homemade book. Very easy to follow.
Author(s): No creator set

How to Make a Christmas Bow
This is a six-minute video that explains how to make a holiday bow for a tree.
Author(s): No creator set

Let's Be Green when We Clean
This three-minute musical video shows students how to conserve water, paper towels and recycle scraps while cleaning up the art room. Easy to follow with catchy music

Author(s): No creator set

Eli Whitney's Cotton Gin
This is the impact of the cotton gin on the growing of cotton is the topic of this one minute video. Too brief to do much more than explain why the invention was important to cotton growers.
Author(s): No creator set

The Magic of the Washing Machine
What was the greatest invention of the industrial revolution? Hans Rosling makes the case for the washing machine. With newly designed graphics from Gapminder, Rosling shows us the magic that pops up when economic growth and electricity turn a boring wash day into an intellectual day of reading.  (09:15)
Author(s): No creator set

The Cathode Ray Tube
(CRT) is an instrument that showed that there was an invisible force, electrons, that exist in our world and this 2:26 minute video shows how and who discovered it and how it could be used.
Author(s): No creator set

This video shows how to use 15 of the features of Google Wave. There are screen casts showing how to operate them and they are easily explained
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Anarchy or Authoritarianism: Which is Worse? - FORA TV
Is anarchy worst that tyranny? This brief video examines this question, and additionally - asks the question: iDoes Iraq need - a really good dictator?
Author(s): No creator set

Anarchist Political Theory
This 5:15 video is about the views of  Crispin Startwell's on anarchist political theory. This is for advanced students and could be used as a debate topic. It is presented in lecture format.
Author(s): No creator set

Chile: Pressure Builds With Upcoming Elections
Learn more: http://pulitzercenter.org/projects/latin-america-chile-education-university-inequality-clash-national-march-economy Hundreds of thousands of Chilean students are taking part in massive protests against failing public schools, expensive private schools, non-affordable loans and an unresponsive government. The protests began in 2011 to demand change. Violence between police and the students is common with protestors tearing down street signs and destroying buses while police use tear
Author(s): No creator set

Culture and Climate Change
Every generation faces challenges that previous generations could scarcely imagine. Twenty years ago, few people were talking about climate change, now it's one of the most hotly-contested areas in politics. How do artists, writers, musicians and broadcasters respond when a new subject appears that is as large and significant as this? What kind of novels, plays, paintings, sculptures, movies and music begin to emerge?Author(s): The iTunes U team

Greenhouse Gas Lessons
Set of climate change lesson plans for grades 4-6
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Peru Part 10: Cooking in the Peruvian Andes
For recipes, visit www.ciaprochef.com/WCA The majestic Peruvian Andes stretch the length of Peru and have witnessed the rise and fall of many civilizations. By 3000 BC, highlanders were cultivating a wide range of crops in this difficult landscapeâ€”hardy, life-sustaining foods such as gourds, corn, potatoes and quinoa. Potatoes provide the foundation of the Andean diet, and varieties number in the thousands. A stroll through the Cusco market provides a glimpse of the tantalizing potato options
Author(s): No creator set

Can Nuclear Energy Save the Planet?
Authors Joshua Goldstein and Staffan Qvist say switching to nuclear and renewable energy is the most feasible path forward for humans to slow down climate change.
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