Primärmaterial/Quelle

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Deafness Research Foundation

Website:
Hearing-impaired people and those dealing with them on a professional or private basis can find a wealth of information here.
This website provides a dictionary of hearing conditions and options.

Comprehensive information and offers of help for all those affected by hearing impairment.

Information and ideas:
A good reference site for teachers and parents as well.

Audio

Siemens Stiftung

Thunder, a natural sound

Recording:
Thunder is a natural sound that a lot of people are afraid of.

A thunderstorm can be as loud as 90 decibels which is the same as an ICE train.

Information and ideas:
Recording to be identified by students or used for sound effects for a radio play/story.
Example of loud sound sources in the nature.

Relevant for teaching:
Noise: causes, effects, protection
Noise consumption and leisure-time activities
Senses discover the environment
Acoustic phenomena

Audio

Siemens Stiftung

Noise at the workplace

Recording:
Collage of different sorts of noise at the workplace. Noisy machines at the workplace require protection against noise.

Noise is often equated with industry and hard work. There is considerable noise exposure on building sites or in factories where there are often noisy machines. There are regulations to avoid damage such as the wearing of ear protectors or the adoption of noise-reducing measures.

Information and ideas:
Recording to be identified by students or used to look at the topic of "Noise". Activity: Draw a machine which makes these noises!

Relevant for teaching:
Noises: causes, effect, protection
Noise consumption and leisure-time activities
Senses discover the environment

Audio

Siemens Stiftung

Ghosts howling

Sound:
Ghosts howling is a sound that is not encountered in reality but, nevertheless, we immediately recognize the sound.

Children like it when it is spooky! A ghost can rarely be seen but is often heard.

Information and ideas:
Recording to be identified by students or used for sound effects for a radio play/story.
Interesting for the subject of communication and also interesting for illustration purposes. It is not always the real sound that is important but what the person hearing it associates with it or how he interprets it.

Relevant for teaching:
Structure and function of a sensory organ
Senses discover the environment
Games to practise using the senses

Audio

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Drums

Recording:
A practising drummer is regarded as a source of noise, as a member of a band he supplies the rhythms that get people moving to the beat.

The rhythms which a drummer produces are an important part of a group and their sound.
Music can be produced by drums alone without other musical instruments.
It can reach levels of 100 decibels.

Information and ideas:
Recording to be identified by students or used for sound effects for a radio play/story.

Relevant for teaching:
Noises: causes, effect, protection
Noise consumption and leisure-time activities
Senses discover the environment

Audio

Siemens Stiftung

Car horn is blown

Recording:
A car horn is blown.

A car horn at a distance of 7 metres produces about 100 decibels. This is necessary as it is a warning signal.

Information and ideas:
Recording to be identified by students or used for sound effects for a radio play/story.

Relevant for teaching:
Structure and function of a sensory organ
Senses discover the environment
Games to practise using the senses.

Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: With eyes blindfolded

Photo:
To illustrate the topic "Seeing with your ears?.

When the sense of sight is not working, another sense can replace the eyes. We pick up a lot of information about our environment from our ears and can thus, in part, at least, substitute the sense of sight.

Information and ideas:
For example, students can try out themselves on a listening walk whether they can guess where they are.

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

Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment;: Shark - hearing with the entire body

Graphic:
Slice image of the hearing organ (lateral-line organ) of a shark.

The shark as example of an animal that hears mainly with a part of its body surface.
Caption:
(a) pores
(b) inner canals filled with gelatinous fluid
(c) sensory cells containing the so called cilia
(d) nerves


Information and ideas:
The graphic is suitable for comparing the sensory cells in the human ear. Everyday context: methods of electroacoustic recording of sound with normal microphone and surface microphone.
Further information on the measuring method "audiometry" is available as information sheet on the media portal of the Siemens Stiftung.

Relevant for teaching:
Structure and function of a sensory organ
Reception of stimuli and processing of information
Senses discover the environment
Sound/acoustics: hearing range, hearing frequency limit

Bild

Siemens Stiftung

Lorry

Photo:
The lorry is a typical road user that causes a lot of noise.

The big advantage of lorries is their flexibility. Compared to other means of transport like ships or trains though, they have several disadvantages: high energy consumption, exhaust fume emissions and noise. The lorry is a loud road user, reaching about 90 decibels on a noise level scale.

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

Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Differentiated frequency ranges in the cochlea

Labeled graphic:
Position of the receptors for tones of varying frequencies in the spiral canal of the human cochlea.

Frequencies between 16 hertz (hertz = vibrations per second, abbr.: Hz) and 20,000 Hz can be heard by the human ear.
To differentiate these frequencies, the receptors for high tones are at the beginning of the canal, those for the low tones at the apex of the cochlea.

Information and ideas:
The illustration is suitable for explaining or revising fundamentals of Physics like sound, frequency and vibrations.
Usable in a worksheet, for work together on the digital projector, or as an overhead transparency.

Further information regarding this graphic is available on the media portal of the Siemens Stiftung.

Relevant for teaching:
The human body
Structure and function of a sense organ
Perception of sound
Human hearing ability
Communication and understanding