Simplifying Level 3 Exponent Problems - Khan Academy
This instructor in this video, Sal Khan, continues with fractional exponents. Mr. Khan uses computer software (with different colors) to demonstrate how to solve Level 3 exponents.  Several examples are modeled using a step by step approach. (09:13)
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The content acknowledged below is Proprietary (see terms and conditions) and is used under licence.

Grateful acknowledgement is made to the following sources for permission to reproduce material in this course:

Course image: Stephane Venne in Flickr made available under Author(s): The Open University

2008.01.16 - DIY iSync Phone Plugin (Video)
If you or your staff/faculty have a cell phone model that currently isn't supported on Apple's list of supported iSync devices, you can create your own iSync Phone Plugin for your unsupported cell phone to allow you to sync contacts, and calendars.
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Mayan Pyramids of Chichen Itza
This National Geographic video shows the Mayan Pyramids. It is part of the series Lost Temples and it tries to give an answer to the question "Why did the Maya abandon their magnificent city of Chichen Itza?" There is reference to Maya culture. (03:30)
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Normal galaxies are made up of stars and (in the case of spiral and irregular galaxies) gas and dust. Their spectra consist of the sum of the spectra of these components.

The optical spectra of normal stars are continuous spectra overlaid by absorption lines (Figure 1). There are two factors to consider
Author(s): The Open University

As the division of opinion between the government and low income people illustrates, definitions of poverty are the stuff of political debate. People in the Rowntree studies tended to focus on â€˜paying bills and foodâ€™. Most people's list of basic needs would also include adequate food and clean water, clothing, shelter and heating. But are there also less apparently physiological, more evidently social, necessities of life?

Author(s): The Open University

The first important point to make is that note taking is more than a process of summarising everything that you see; it must be an active process of engaging with the material and thinking it through for yourself. In the videos, the multidimensional nature of the visual images and the stories they convey means that you will not be able to take in everything on first viewing. The videos allow us to present visual as well as audio information and in a form that makes it easier for you to revisi
Author(s): The Open University

What about other variables which may affect demand? Let us consider four such variables. As is often the case in economics, the first two points involve understanding some rather formal relationships between variables, in this case price and income.

1. The price of other goods. Two goods x and y are known as substitutes if the quantity demanded of good x increases after a rise in the price of good y. The
Author(s): The Open University

After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:

The Science Behind Self-Control
Have you ever wondered why you can't bring yourself to choose the foods that are healthy over the ones you know are unhealthy? Researchers are not only trying to find out why, but what parts of the brain govern behaviors of self-control and how we can work to improve them. Ben Hayden is a neuroscientist and Assistant Professor of Brain and Cognitive Sciences at the University of Rochester. He offers his insights based upon his research and how it has the potential to apply not only to our choice
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The Arts in Every Classroom: Expanding the Role of the Arts Specialist
Three arts teachers work with colleagues around their schools, using collaborative techniques that go beyond the traditional work of arts specialists. Kathy DeJean is a dance artist at Lusher Alternative Elementary School in New Orleans; Mary Perkerson is the visual art teacher at Harmony Leland Elementary School in Mableton, Georgia; and Amanda Newberry is the theatre specialist at Lusher.
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Compound & Complex Sentences
A video powerpointÂ for learning the structure of compound andÂ complex sentences. There is no sound, but there are a lot of examples. (11:05)
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In this course, you have learned about boxplots and about ways of dealing with data given in tabular form.

A boxplot is a way of presenting certain summary statistics and other characteristics of a data set in graphical form. It gives a quick graphical impression of the location, dispersion and the general pattern of skewness in data set, as well as drawing attention to unusually large or small values. In comparing two or more data sets, it is often useful to draw comparative boxplots (
Author(s): The Open University

Learning about Maps with Curious George
The children head to a museum to learn more about maps.Â  Each team makes a map and then gives it to another team to try to follow.Â  The children label landmarks throughout the museum to give the teams clues to follow.
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Berlin 1961: Kennedy, Khrushchev, and the most dangerous place on earth [Audio]
Speaker(s): Frederick Kempe | Kempe explores the war of nerves between the young, untested President Kennedy and the bombastic Soviet leader, as they squared off over the future of a divided city - and the world came to the brink of disaster. This event celebrates the publication of Kempe's new book Berlin 1961: Kennedy, Khruschev, and the Most Dangerous Place on Earth. Frederick Kempe is president and CEO of the Atlantic Council and a former Berlin bureau chief of the Wall Street Journal. A num
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The reversal of cell differentiation and prospects for cell replacement therapy
The inaugural Anne McLaren Memorial Lecture, "The reversal of cell differentiation and prospects for cell replacement therapy", given by Prof Sir John Gurdon FRS, University of Cambridge, at Lady Margaret Hall, Oxford, on 7 November 2008. Visit http://media.conted.ox.ac.uk/McLaren-2008 to view the full presentation from Professor Sir John Gurdon FRS, including his slides.
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Claims over the benefits of globalisation and the exploitation of cheap offshore labour generate strong feelings and, not surprisingly, divide opinion between those who favour the global marketplace and its detractors. The issue turns on whether the constant search for ever-cheaper manufacturing and service locations is seen as a good or a bad thing. It may appear odd, at first, to suggest that exploiting the poor of another country can, on any measure, be regarded as a good thing, but
Author(s): The Open University

While there is no common law right to privacy, the law relating to breach of confidence has been expanded to a degree which suggests that privacy claims are now being given greater protection. The right to confidence has been expanded in recent cases such as Douglas and Others v Hello! Ltd (2001). In this case the Court of Appeal ruled that individuals have a right to personal privacy which was grounded in the doctrine of confidence. Michael Douglas and Catherine Zeta-Jones had granted
Author(s): The Open University

Question

Which countries in the world are classified as â€˜developing countriesâ€™?

There are various definitions of â€˜developing countriesâ€™, none entirely satisfactory. The WTO allows
Author(s): The Open University

Women in Indiaâ€™s waste economy
In this Departmental Seminar, Prof. Barbara Harriss-Whiten draws on anthropology, economics and politics to examine the role of women in Indian society. 12 May 2017.
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