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Siemens Stiftung

Sense organ eye

Photo:
The eye as sense organ. It does not just differentiate between brightness and colour but also shape.

The eye is a ball that is located in a cavity in our skull. It consists mainly of the cornea, the lens and the retina.
The light perceived is beamed first of all by the lens. The retina with its sensory cells is at the back of the eye, this is where the image spots arrive from where they are transmitted via the optical nerve to the brain.
In the brain the whole image is then put together.

Information and ideas:
Explanation of how the eye works can be done, for example, by showing the students a camera:
lens: lens of the camera
retina: film
brain: development of the film

Relevant for teaching:
The human body
Structure and function of a sense organ
Reception of stimuli and processing of information
Senses discover the environment

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Siemens Stiftung

Sense of rotation

Photo:
A child turns its head while sitting on a swivel chair. Why does it get dizzy?

Simple experiment for the students to try out themselves.

Information and ideas:
Typical situations which the children know from their own everyday life:
- Turning on a chair
- Rides on roundabouts
- Turning quickly in a circle
etc.

Relevant for teaching:
The human body
Structure and function of a sensory organ
Reception of stimuli and processing of information
Senses discover the environment

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Siemens Stiftung

How does a shark hear?

Graphic:
Shark and its hearing organ (lateral-line organ).

The shark as an example of an animal that mainly hears with its body surface. The sense of hearing (lateral-line organ) is sketched in.
Information and ideas:
Picture to introduce topic "How do animals communicate with each other?".
Further information regarding this graphic is available as information sheet on the media portal of the Siemens Stiftung

Relevant for teaching:
Sound/acoustics: hearing range, hearing frequency limit
Communication, Understanding

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Siemens Stiftung

Five senses in the human head

Labeled graphic:
The five human senses.

With the five sense organs, eyes, ears, nose, tongue and skin, the human being receives stimuli, transforms them into electrical nerve impulses which are then transmitted to the brain.
There they are processed, classified and interpreted.

Information and ideas:
Suitable as starting point. Important to point out that internal organs are involved as well as the visible organ and that the brain is necessary for the evaluation of the impulses.

Relevant for teaching:
Structure and function of a sensory organ
Reception of stimuli and processing of information
Senses discover the environment

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Siemens Stiftung

Burning candle

Photo:
A burning candle.


Information and ideas:
An example of the conversion of chemical energy into thermal energy.

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Siemens Stiftung

Bicycle dynamo

Photo:
A bicycle dynamo.


Information and ideas:
An example of an electricity generator that converts mechanical energy into electrical energy.

Primärmaterial/Quelle

Siemens Stiftung

Otolaryngology

Website:
Website of the American Academy of Otolaryngology - Head and Neck Surgery.

The website offers a broad spectrum of information on the whole field of ear, nose and throat-related areas which goes way beyond the subjects of hearing and hearing impairment. The scientific level of the information requires a certain amount of basic knowledge.

Information and ideas:
Students can find detailed information here. A good reference site for teachers and parents as well.

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Siemens Stiftung

The Ear, Hearing and Hearing Impairment; Teaching unit: From the drum to the eardrum: Resonance body piano

Photo:
Grand piano and piano are good examples of the great significance of resonance bodies with regard to volume and sound.

The frame and the air in the piano vibrate in resonance with the string that has just been struck. Whereas the more modern grand piano "fills" whole concert halls, its historical predecessor, the spinet, is just loud enough for the living-room. Apart from the volume the tone colour of the spinet is also much thinner. This comparison makes the importance of the resonance body very clear - both generally in the production of sound and specifically in music.

Information and ideas:
A practical example from the field of music shows how important the subjects of Physics and Acoustics are for the world of art and communication.

Relevant for teaching:
Sound/acoustics: parameters
Vibrations and waves

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Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Police car

Photo:
Police car as typical road user.

Information and ideas:
Use picture to start discussion or for illustration purposes.

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Siemens Stiftung

Motorbike

Photo:
Motorcyclist as typical road user.

Above all, when motorbikes drive fast, they become loud road users, with levels of up to 80 decibels being recorded.

Information and ideas:
Use picture to start discussion or for illustration purposes.