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Desert
Types, Vegetation, Fauna
Deserts and semi-deserts cover roughly a third of the entire landmass of the Earth. A huge area of our planet is thus defined as an arid region. But what exactly are arid regions and are they similar everywhere? In general, landscapes where only highly specialised plants or no plants at all can grow due to their extreme dryness are referred to as arid regions. Therefore, cold deserts also fall into this category. Although they have water, it is frozen due to the cold and thus not available for plants. In addition, the lack of vegetation is caused by the lack of warmth. The marginal zones of the polar regions Arctic and Antarctica i.a. count among the cold deserts, but also the alpine cold deserts of high mountains. The picture is entirely different with arid deserts. In arid deserts, little precipitation and a high rate of evaporation are mainly responsible for the lack of an extensive vegetation cover. Most arid deserts stretch out around the globe in two broad dry belts north and south of the equator.
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Air Traffic
Being able to fly has been a dream of humanity from time immemorial. But it does not even date back a century that people actually started being able to travel through the air. Since the 1960s, the number of flight passengers has been constantly increasing. Thus, the airspace is no longer dominated by birds but by man-made flying objects.
Podcasting
Today, the use of new media has become a matter of course not only in everyday life – schools and teaching, too, benefit from the new technologies and methods, which support active and independent learning. Especially in computer science, ethics and language courses but also in all other subjects, modern media are a valuable pedagogic and didactic asset. This DVD uses the example of podcasts to demonstrate how the possibilities opened up by new media can be applied in the classroom and how the pupils can be taught to handle them in a competent and target-oriented manner. The film is aimed at supporting the use of podcasts at school and encourages making them. This also requires the ability to find information on the Internet and assess it. The film informs on the functionality of podcasts and technical background as well as on the teaching and learning possibilities offered by podcasts – ranging from specific contents to superordinate learning targets such as the advancement of creativity and team spirit. The DVD is a useful support for teachers applying new media and wishing to show their pupils how to handle Running Time: 20:29 ms them in a sensible way.