Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Inner ear - location in skull bone

Overview graphic:
The location of the inner ear in the skull bone.

The inner ear is not located in a bone cavity but is embedded in the petrous bone as a "bony labyrinth". The petrous bone is itself part of the temporal bone.

Information and ideas:
From the simple to the complex. The actual hearing organ that is located in the cochlea of the inner ear is quite complex. It is therefore definitely advantageous if the student first of all gets an idea of where and how the inner ear is located in the skull.

Relevant for teaching:
Structure and function of a sensory organ
Reception of stimuli and transmission of information
Functions of senses.

Medientypen

Bild

Lernalter

11-18

Schlüsselwörter

Anatomy (human) Chart Ear

Sprachen

Englisch

Bild

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

Bild

Siemens Stiftung

Energy consumption of household appliances

Chart:
The chart shows the electric power consumption and, in some cases, the water consumption of certain household appliances. The average consumption figures of appliances from 2009 and 2015 are compared.

The chart shows a comparison of the electric power consumption of dishwashers, washing maschines, fridge-freezers, and tumble dryers. The values for 2015 are based on appliances with efficiency class A+++. It is clear that a savings potential of 15 to 40 percent still exists. For example, a 2015 washing machine uses 40 percent less electricity and 15 percent less water on average than a 2009 washing machine.

Information and ideas:
Apart from using state-of-the art technology, people can also save energy when washing dishes, washing and drying clothes, and cooking through energy-aware behavior. What options are there?


Dieses Material ist Teil einer Sammlung

Bild

Siemens Stiftung

Cochlea - an overview

Labeled graphic:
The cochlea with the location of the vestibule, the oval window and the round window. To help understand where the sound enters and exits the cochlea.

The cochlea consists of a coiled canal which appears in three compartments in the section. The part leading upwards is called the scala vestibuli and begins at the oval window.

Between scala vestibuli and scala tympani there is a membranous tube which is also filled with fluid. This is where the actual hearing organ, the Organ of Corti is located.

Information and ideas:
Can be used in a worksheet, for work together on the digital projector, or as an overhead transparency.
Further information regarding this graphic is available as information sheet on the media portal of the Siemens Stiftung.

Relevant for teaching:
Structure and functions of a sensory organ
Reception of stimuli and transmission of information
Functions of senses

Medientypen

Bild

Lernalter

11-18

Schlüsselwörter

Anatomy (human) Chart Ear

Sprachen

Englisch

Anderer Ressourcentyp

Siemens Stiftung

What is an oscillation?

Interactive graphic:
Teachers can work through the most important terms related to oscillation interactively with students.

A graph of an oscillation is used to define and explain the terms oscillation, frequency, and amplitude. In addition, the correlations between frequency and pitch and between amplitude and volume are pointed out.


Dieses Material ist Teil einer Sammlung

Primärmaterial/Quelle

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Sound match

Website (Eng., Sp.):
Learning how to read from interactive, phonetically-backed animations.

Here, students can interactively play a recording of the words and then match them to the pictures.

Information and ideas:
Suitable for independent student work.

Bildungsbereiche

Elementarbildung

Fach- und Sachgebiete

Biologie

Medientypen

Primärmaterial/Quelle

Lernalter

6-10

Schlüsselwörter

Sound

Sprachen

Englisch

Simulation

Siemens Stiftung

Construct eardrum - experiment

Animation:
Experiment where the students can understand how the eardrum transmits sound waves.

Simple experiment which demonstrates how the eardrum works.
Experiment setup:
Thin paper or foil is fastened over the end of a cardboard tube. Grains of sand are put on the paper.
If something is said into the open end of the tube, it can be observed how the grains of sand move.

Information and ideas:
To prepare or back up the subject. An experiment that can be done easily in the classroom.

Variation of the experiment:
Fit sort of membrane at the top and bottom of the tube. Tighten membrane with rubber bands. Put grains of salt at the top end and then strike the foil at the bottom end.
It can be observed that the grains of salt move (= the pressure was conveyed through the air!).

Relevant for teaching:
The human body
Structure and function of a sensory organ
Acoustic phenomena

Medientypen

Simulation

Lernalter

6-15

Schlüsselwörter

Sound

Sprachen

Englisch

Dieses Material ist Teil einer Sammlung

Audio

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Test tone as purest sound signal

Sound:
A simple monofrequent pure tone produced synthetically with a generator can be even purer than any tuning fork tone.

A simple monofrequent pure tone produced synthetically with a generator can be even purer than any tuning fork tone.

Information and ideas:
Recording to make different sorts of sound clear (or for students to identify).

Relevant for teaching:
Sound/acoustics: parameters
Communication and understanding
Vibrations and waves
Acoustic phenomena


Dieses Material ist Teil einer Sammlung

Bild

Siemens Stiftung

Tuning fork as "simple" sound

Graphic:
Oscilloscope graph of a tuning fork tone as example of a simple tone with visible upper harmonics in the starting phase of oscillation.

Tuning forks as well produce simple periodic tones but, strictly speaking, they are not really pure as there are several upper harmonics already overlapped.

Information and ideas:
Possible cross reference: Examination of aperiodic speech signals with the help of spectral analysis.
Further information on this graphic is available as information sheet on the media portal of the Siemens Stiftung.

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

Medientypen

Bild

Lernalter

11-18

Schlüsselwörter

Sound Wave (physics)

Sprachen

Englisch

Dieses Material ist Teil einer Sammlung

Bild

Siemens Stiftung

Test tone as purest sound signal

Graphic:
Oscilloscope graph of a periodic tone of a single frequency (pure tone). Produced with an electronic sound generator.

Simple periodic tones consist of a "pure tone" with a single frequency (mono-frequency sine tone). That only exists in measuring technology as a synthetically generated "test tone".

Information and ideas:
Possible cross reference: Examination of aperiodic speech signals with the help of spectral analysis.
Further information on this graphic is available as information sheet on the media portal of the Siemens Stiftung.

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

Medientypen

Bild

Lernalter

11-18

Schlüsselwörter

Sound Wave (physics)

Sprachen

Englisch

Dieses Material ist Teil einer Sammlung