Bild

Siemens Stiftung

Training of senses

Photo:
A girl is shaking a film container in order to identify the content of the container by means of the noise.

This photo shows a situation from a listening memory game. The game involves the ability to remember and recognize things.

Information and ideas:
This is how the game is played:
Different materials like sand, rice, dried peas, pebbles or stones, flour etc. are filled into empty film containers, two containers for each material. Now the players have to match the pairs by identifying the material inside the containers by shaking The whole game can be played with teams of two partners as well. Each player gets a film container and has to go round and compare the sounds made when the containers are shaken and thus find his or her partner.
(Tip: Label all the containers on the bottom,
for example with colored dots so that the pairs can be clearly recognized again.)

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

Anderer Ressourcentyp

Siemens Stiftung

Structure of the retina

Interactive graphic:
The parts of the retina can be labeled interactively.


An enlarged detail of the retina and its position in the human eye is displayed.
The graphic can be labeled interactively, either individually or in full. Manual labeling on the interactive whiteboard is also possible.

Übung

Siemens Stiftung

Structure of the eye - areas (matching exercise)

Interactive exercise:
The object of this exercise is to match the areas of the eye (outer, central, and inner layer) with their individual parts.


The areas of the eye can be matched using the mouse or manually.

Medientypen

Übung

Lernalter

13-18

Schlüsselwörter

Eye Sense organ Vision

Sprachen

Englisch

Anderer Ressourcentyp

Siemens Stiftung

Nerve conduction in the skin

Simulation:
Process of transmitting nerve impulses in the skin.

If a stimulus is exerted on the skin (e.g., through touch or heat), the affected receptor immediately transfers an electrical impulse to the next nerve cell. In this way, the impulse travels across several nerve cells and finally reaches the spinal cord and then the brain, which ultimately processes the information.

Three animations show the process of transmitting impulses in different degrees of detail.

Bild

Siemens Stiftung

Sense organs stimuli

Photo:
At a fair, all sorts of stimuli affect our senses, for example, the smell of candy floss, the bright lights of the roundabouts etc.

If all our senses are attracted at the same time with the same degree of intensity, as at a fair, it can be a very pleasant experience but it can also be a strain.

Information and ideas:
The students can report on their own experiences, for example, what can I smell, see and hear at a fair?
What are the typical smells, tastes and sounds associated with Christmas?

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

Bild

Siemens Stiftung

Sense organ skin - sense of touch and of feel

Photo:
The skin as sense organ. A gigantic organ which we use to touch and to feel.

The biggest organ in the human body is the skin.
A twelve-year-old has an amount of skin equivalent to about 20 A4 pages.
The skin has several tasks:
To begin with, to protect against external influences; it can heal itself in the event of minor injuries. And then it is responsible for touching and feeling. We can distinguish between six different sensations: touch, pressure, pain, tension, vibration and temperature.

Information and ideas:
What sorts of things can I feel? Here, it is a good idea to prepare a box full of materials which can be recognised by touching and feeling them.

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

Bild

Siemens Stiftung

Sense organ of balance - position

Labeled graphic:
The cupola changes its shape when it is bent and stimulates the sensory hairs. The calcium carbonate crystals act as extra ballast.

The cupola (gelatinous mass) changes its shape when it is bent and stimulates the sensory hairs. The calcium carbonate crystals act as extra ballast. The lymph simply serves to absorb here.

Information and ideas:
This graphic is very useful for showing the function of the sense of position in the inner ear.

Relevant for teaching:
Structure and functions of a sensory organ
Reception of stimuli and processing of information

Bild

Siemens Stiftung

;: Echolocation with dolphins

Graphic:
Dolphins use the echo under water to locate other fish as prey.

Just like a bat, a dolphin can recognize from the echo whether the prey is nearby or not. It produces clicks and whistling noises under water. If it has discovered something of interest, the dolphin will move closer and "click" more quickly. This gives it an exact acoustical picture of its surroundings.

Information and ideas:
Based on the phenomenon of an echo, this graphic can show how animals use the echo to find prey.

Relevant for teaching:
Functions of the senses
Acoustic phenomena
Sound/acoustics: hearing range, hearing frequency limit, parameters
Vibrations and waves

Bild

Siemens Stiftung

Sense organs - sense of taste

Photo:
A healthy person has about 4,000 taste buds spread over the tongue, the inside of the cheeks and the throat.

The fact that we can enjoy the taste of our food is the result of interaction between several senses. It is not just through our mouth that we get the messages referring to the taste of food and drink. Our so-called "chemical senses", the actual sense of taste and the sense of smell work together to provide human beings with the ability to recognize a wide range of different tastes and flavours. Scientists are of the opinion that the perception of taste can be trained in a similar way to the sense of smell. They claim that gourmets should be able to train their sense of taste in the same way that perfumiers can.

Information and ideas:
Students can have a tasting session and try to recognize different drinks by tasting them when they are blindfolded:
- Cola
- Water
- Tea
- Fruit juice
- 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

Bild

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