Physics
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Light
Properties and Experiments
"At night all cats are black." – all of you will probably know this figure of speech. Light is involved or rather a situation where little light is available. In order to be able to see well we need not only keen eyes but above all light. Although our eyes adapt to dark surroundings, we hardly see any colours anymore and perceive only the silhouette of the cat or any other object. Light is the visible part of electromagnetic radiation and consists of tiny mass particles. The so-called photons move at extremely high speed and carry an immense amount of energy. We cannot touch it but feel and observe its effects. Light is a precondition for us to be able to take photos, watch a film or view something under a microscope. A lot of fascinating natural phenomena – for instance a bright blue summer sky or a rainbow – are based on light. Without light, life could not have evolved on earth. Light is energy – the chlorophyll of plant cells or solar panels can convert it into other forms of energy. Today we know what light energy is, what effects it produces and how it can be used.
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Curriculum-centred and oriented towards educational standards
Matching
Internet Addiction
The film consists of two parts. The first part is the 15-minute short film “In the Net”. It describes the problem of excessive Internet use in a humorous way, in particular the risk of losing touch with reality when chatting. The second part illustrates with three real persons how Internet addiction can develop and the problems encountered by those who are afflicted. The authentic statements are commented by an experienced therapist. For many pupils, the issues addressed here are related to their everyday lives. What is a “sensible” use of the Internet, where does pathological addiction start? In contrast to addiction to alcohol, nicotine or drugs, the public seems to be largely ignorant of the problem of this addiction, which is not related to any substance abuse. The film provides material for discussion in the classroom (crossdisciplinary) and can be used as a basis for the formulation of prevention strategies.
Blogging
The weblog or blog, for short, as a medium is not much older than this century. Blogs came into being in the World Wide Web as ’messages from below’, as web pages from web creators who wanted to share their view of the world with the world. They are short notes, long texts, pictures, videos, which are posted loosely and at random intervals to the world for an undefined public.
Peer Mediation
Lena and Max attend the 7th form. Max is new in class. During a break, Max notices that Lena and her friend are laughing at him again. Max loses his temper! He slaps Lena in the face. That hurts and Lena runs back into the classroom with a red cheek. The growing conflict between the two has escalated. Just like Lena and Max, every day pupils all over Germany have rows with each other. At the Heinrich Hertz Gymnasium in Thuringia, pupils have been trained as mediators for years. At set hours, they are in a room made available by the school specifically for mediation purposes. The film describes the growing conflict between Max and Lena and shows a mediation using their example. In doing so, the terms “conflict” and “peer mediation” are explained in a non-technical way. The aims of peer mediation and its progress in five steps as well as the mediators’ tasks are illustrated. The art of asking questions and “mirroring”, which the mediators must know, is described and explained. Together with the comprehensive accompanying material, the DVD is a suitable medium to introduce peer mediation at your school, too.