Betzold 89211 Mode D'emploi page 34

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1. The Betzold Electronic Instructional Construction Set
The components of the „instructional construction set electronic" are – with few exceptions – labelled with the internationally
valid electronic symbols.
With the aid of this instructional construction set, a large part of the required content of the curriculum can be dealt with and
the necssary experiments can be carried out.
None of the experiments are dangerous as they are carried out using battery power with a low voltage.
Point out to your pupils the dangers of electicity and agree rules with them for dealing with electricity.
Ensure that the students do not construct an electical circuit without a connected load as the battery becomes empty, the
wires hot and a short circuit occurs within a short period of time.
2. Teaching Advice
Education should help children and adolescents with the assimilation of their own living world.
Our living world today is influenced more strongly by electricity than ever before. Therefore it is also important to make the
pupils electrical living world and environment clear and apparent.
Children and adolescents already know many electrical phenomena from everyday life, such as, for example. lightning, the
electro-static charging of hair or electric pasture fences. These must be made aware of and be underpinned with theory so
that they can contribute to a deeper understanding of physics.
The knowledge about electricity which the pupils now gain forms the basis for further natural science teaching. Children and
adolescents have only a very vague conception of electricity.
They are aware that electricity is of great benefit to them but also that it bears risks. On the one hand, they cannot imagine
electricity as such as it only makes itself „visible" through the work it does in the form of light, heat or magnetism, on the
other hand it is also important for the pupils to acquire knowledge of the electrical conductivity of different materials in order
to be able to protect themselves against the dangers of electricity.
In this area of teaching, experiments are the ideal media for the demonstration of electrical phenomena or the visualization
of concepts and also to make electricity tangible and create practical life references.
For example, electrical devices can be checked for their safety. Pictures and stories can be examined for the correct or
incorrect behaviour of the person and for the risks.
The correct operation and the cost-saving handling of household devices is becoming more and more important. Not only
because electricity is becoming more expensive, but also because the energy demand of humanity today is covered to a
large extent by energy sources such as crude oil, natural gas, coal and uranium. But these energy sources will be depleted
in the foreseeable future.
The issues of energy and electricity conservation and the winning of energy from non-renewable (such as crude oil, natural
gas, coal and uranium) and renewable energy sources (wind, water, sun) are, therefore of great importance. Children and
adolescents need to learn where electricity is consumed and how they can responsibly use electricity. Thus they can be
made aware of what a life without electricity would be like and what processes and devices function with electricity.
In the process, alternatives, such as the winning of electricity by means of solar energy systems, should be demonstrated to
them.
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