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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

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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

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

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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

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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

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.

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

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

Audio

Siemens Stiftung

Spatial perception

Sound:
Sequence of same sounds with varying echoes makes spatial perception clear. A sound in a living room is different to what it is in a hall.

We recognize immediately whether we are in a small room with not much space in it or whether we are walking through a big hall. The sound and the echo of our steps tell us the dimensions of the room.
We know from experience: When we find a cave, we shout into it to see how big it is, before we dare to enter it.

Information and ideas:
The recording simulates different rooms. A sequence of sounds is played. At first, you have the impression you are in a small room and, at the end, in a big hall.
There can be a class discussion about what the rooms might look like.

Relevant for teaching:
Reception of stimuli and processing of information
Senses discover the environment

Simulation

Siemens Stiftung

Seeing process

Simulation:
The process of seeing in the human eye is shown step by step.



A short explanation can be displayed for each seperate step.