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Siemens Stiftung

Injuries to the ear through violence

Photo:
"Ouch!" Pulling at somebody's ears not only hurts, it can be dangerous and injure the ear both internally and externally!

Do not pull hard at somebody's ears or clip anyone round the ears because that can damage the sensitive ear.

Information and ideas:
A situation that can be observed in the school playground or at a children's playground. The photo can be used to start talking about the topic of how to protect the ears.

Possible questions:
What am I allowed to do to my ears?
What should I not do?
Why can a joke end up having serious consequences?

Relevant for teaching:
Hearing defects, hearing impairment
Personal health care

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Siemens Stiftung

Sticking object into ear

Photo:
Do not stick objects in your ear! It can lead to eardrum injuries!

Don't stick anything in your ears! Pencils and other pointed or sharp instruments are particularly dangerous as they can very easily injure the eardrum! Even a cotton wool bud has caused serious injuries in the past, if, for example, you suddenly turn your head!

Information and ideas:
A situation that can be often observed in class. The picture can be used to introduce the subject "protection of the ear".
Possible questions:
What am I allowed to do to my ears?
What should I not do?
Why can a joke end up having serious consequences?

Relevant for teaching:
Hearing defects, hearing impairment
Personal health care

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Siemens Stiftung

Noise and concentration - for example music

Photo:
You can do homework more quickly with music on? Tests show this only applies to routine tasks. Otherwise music is more like disturbing noise.

Is music relaxing pleasure or a disturbing noise? This is a very subjective matter. Objectively the answer depends on the specific situation!

Information and ideas:
This question "Music on when doing homework?" is an evergreen. Maybe an objective answer can be reached using the criteria of concentration and effectiveness?

Relevant for teaching:
Hearing defects/hearing impairment
How hearing works
Damage to the sense organs
Noise
Personal health care

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Siemens Stiftung

;: Child with cap

Photo:
The best protection against colds and consequently against inflammation of the middle ear is to wear a cap in the winter which covers the ears.

Acute inflammation of the middle ear is one of the most frequent illnesses that children get. Acute means it starts suddenly, is very severe but is usually over quickly as well. This kind of inflammation occurs more during the winter. Children who suffer from it usually had a cold before.
While acute middle ear inflammation is very painful, it usually heals up and is forgotten quickly provided it is treated and observed properly.

Information and ideas:
Use picture to introduce topic "Looking after the sensory organs" or the topic "Ear diseases".

Relevant for teaching:
Looking after the sensory organs
Personal health care

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Siemens Stiftung

Cotton wool buds

Photo:
Cotton wool buds.

Attention when cleaning ears: Cotton wool buds must not be pushed too far into the ear canal as this can injure the eardrum.

Information and ideas:
Use picture to start discussion on the topic of "Health care" and specifically "How to take care of ears".

Relevant for teaching:
Personal health care

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Siemens Stiftung

Age-related hearing loss

Photo:
Hearing ability is reduced with increasing age. This can cause danger for older people in road traffic.

Age-related hearing loss or presbycusis is the gradual increase in hearing impairment caused by the dying of cells in the inner ear or auditory nerve. It usually begins with a loss of high frequency tones and then, later on, medium frequency tones. Both ears are equally affected which means that from a certain degree of hearing impairment, normal everyday speech can only be understood with difficulty. This hearing impairment causes problems for older people, for example, in road traffic. Other road users have to be particularly alert.

Information and ideas:
This special situation can be used to lead on to a general discussion of hearing impairment or hearing loss and what it means for young people as well. The question of how to deal and communicate with such people can be discussed.

Relevant for teaching:
Hearing defects/hearing impairment
How hearing works
Sound transduction

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Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Effects of noise

Schematic diagram:
The graphic shows that - apart from physical effects - sound does not become noise until it reaches the brain.

Noise has effects on the physical and mental health of human beings. What the individual subjectively considers to be noise depends on a number of factors, for example the individual's own mood.

Information and ideas:
Can be used as introduction to topic "What are the effects of noise??.
Can also be used for illustration purposes: individual parts can be covered up (and then gradually uncovered in the course of the lesson).

Relevant for teaching:
Noise: causes, effect, protection

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Siemens Stiftung

Perforation of the eardrum

Labeled graphic:
Simplified illustration of a perforated eardrum.

A perforated eardrum can occur when foreign bodies, for example, instruments to clean the ears, are stuck in too far or when there are loud bangs near the ear.
Violent blows to the ear can also cause perforation.

Minor tears or perforations can heal up by themselves provided they get the proper treatment. In any case, a doctor should always be consulted!

Information and ideas:
Can be used for illustration purposes on the subject of "Ear diseases" either on transparencies or worksheets. Supposedly "harmless" minor problems can turn into serious damage to the ear.

Relevant for teaching:
Hearing defect/hearing impairment

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Siemens Stiftung

; ; ;: Child with hearing aid

Graphic:
A boy and girl sitting at desks; the girl is wearing a hearing aid.

From the 2009 UN Convention on the Rights of Persons with Disabilities we can derive that children with and without disabilities should be taught together.
The graphic can serve as an example of how technical aids can be used in the case of disabilities.

Information and ideas:
Use graphic as introduction to topic of hearing damage. A handicap is visible to everyone (see hearing aid, compare with armband worn by the blind.)

Relevant for teaching:
Hearing damage, hearing impairment
How hearing works
Sound transduction
Impairment of sensory organs

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Siemens Stiftung

Normal audiometric audibility limit

Chart:
Audiometric audibility limit of a person with normal hearing with typical frequency and loudness ranges for speech and music.

The speech range is that range of frequency and loudness where speech communication usually takes place. Within the audiometric audibility limit it is the kidney-shaped range. In our diagram it is coloured blue.

Information and ideas:
An attempt at comparing diagrams showing normal hearing and reduced hearing can be done by students individually - as homework. It is useful for testing written expression (English) as well as for testing basic skills from Mathematics or Physics (how to interpret a diagram, for example).

Relevant for teaching:
Hearing defects/hearing impairment
How hearing functions
Sound/acoustics