Information an Communication Technology song
Co-mu-ni-cate.
Co-mu-ni-cate.
Information
is the key
Passed
between you ad me
I send it1
– you receive it2
I send it1
– you reveive it2
I send it,
I send it, I send iiiiit…1
I send it1
– you receive it!2
We can use
technology!
Te-, te-,
te-, te-, te-, te-, technology3
Te-, te-,
te-, te-, te-, te-, technologie-ieh!3
Radio-ouh-ouh-oh-ouh-ouh
Radio waves
Digi-di-di-di
digi-di-di-di
Digital signal
Satelli-li-li-li-li-li-li-li
Satellite in
space
Body-Movements supporting the song:
1 winding the arms forward in front of chest
2 winding the arms backward
3 stretch one fist in the air and jump
to get the tune, check out this videos by the Polkadots:
The Polkadots - Communication: https://www.youtube.com/watch?v=jzi_pj0iCKw&list=RDjzi_pj0iCKw
The Polkadots - Radio Waves: https://www.youtube.com/watch?v=Zgn3xXSLMvU
The Polkadots - Technology Song: https://www.youtube.com/watch?v=JEIHogpVJ1k
What is Information and Communication Technology?
What is
technology?
- I fix some picture charts on the board and we work out together which one shows means of communication and which one means of information.
- Then we take all those charts off the board that do not show a technology.
- I distribute white papers and the learners draw examples for technological means of information and communication from the board.
Vocabulary
help Chichewa
Technology/technologies
= chida/zida
Information =
chidziwitso
Communication =
kulumikizana
What is
information and Communication technology?
Information
and communication technology is the use, control and transfer (sending and
receiving) of information using computers and other technologies.
Examples
for information and communication technologies
Computer
Internet
ATM
Television
Radio
Cellphone/
mobile phone
Fixed
telephone
Radio
1)
The
Radio
- Sound waves (speech or music) are
created/recorded at a radio station
(in Blantyre)
- The learners can touch their
throats saying “AAAAH” to feel their vocal chords producing sound waves
- But sound waves can not travel
very far – we can not even hear what happens in the classroom next door
- The
transmission tower converts the sound waves into radio waves
- Radio waves are electomagnetic
(electronic and magnetic!) waves, they move with speed of light (there is
nothing faster than light)
- Radio waves are of the same
nature as light, heat, X-ray technology
- We can not hear radio waves
with our ears
- The transmission tower sends
out the radio waves
- With the antenna of our radio we can receive the
radio waves, the speaker converts
the radio waves back into sound waves (that we can hear with our ears)
- The speaker vibrates because
sound is produced by vibration
Activity
I bring a
radio in class. The antenna is to short to receive the radio waves properly. We attach a wire to the antenna and try to “catch” the radio waves. We change radio channels.
Then the learners touch the speaker to feel the vibration that it produces. Of
course, the learners also want to dance!
Revision
Music or
speech are recorded at…? (the radio station)
Music or
speech are…? (sound waves)
When we
touch our throat while speaking “AAAAH” we can feel…? (vibrations)
When we
touch the speaker of a radio that is playing music we can feel…? (vibrations)
The radio
station is connected to…? (a transmission tower)
The
transmission tower sends out…? (radio waves)
Can we hear
radio waves? (no!)
Our radio
receives the radio waves with the… (antenna)
And what is
this? (point at the speaker)
The speaker
converts the radio waves back into…? (sound waves)
2)
Telephones
I invited a
telecommunication engeneer who had worked for the Malawi government for many
years. I had known him by casuality and he was living near to the school. He
explained to my learners about telephones and the Malawi telephone network.
Afterwards, they could also ask questions. A resumee about what we have learnt:
“Tele-phone” is greek language. It means “talk far”
tele = far
phone =
talk
Other words
with “tele” (far):
Telecommunication(=
communicate far)
Television
(= see far)
Types of telephones
Fixed
telephone
Mobile
phone or cell phone
Fixed
mobile phone
Connection
Fixed
telephone
|
On local
level by wires. If we cut a wire, there is no connection anymore. Example:
Two fixed phones within Senga Bay connect by wires
Between
areas by transmission towers. A phone in Lilongwe connects with a phone in
Senga Bay using transmission towers and radio waves.
|
Mobile
phone/ cell phone
|
Every
area/zone (called cell) has a transmission tower that receives and transmits
radio waves. We speak from one “cell” to another. The signal is send and
repeated from one transmission tower to another.
|
Malawi phone network
- AIRTEL, MTL, TNM and ACCESS are the network providers in Malawi.
- All network providers have
transmission towers to send and receive radio waves
- MTL has the highest quantity of
transmission towers
- The network providers have an
agreement to allow their subscribers/customers to phone one anothers even
if they are not using the same network provider, but it is more expensive
- For example Airtel to TNM or
Airtel to MTL
- MTL is the master/backbone of
the agreement. It connects all the network providers.
- If an Airtel phone wants to
connect with an TNM phone, that connection is only possible using a MTL
transmission tower. MTL is making business!
- MTL is a fixed telephone
provider. That´s why it is also possible to call from a fixed phone to a
cell phone.
World phone network
If we in
Malawi want to phone someone in Germany… we connect through a satellite in
space! A transmission tower in Blantyre sends radio waves into space. The
satellite receives the radio waves and sends them on to Germany. Also in
Germany there is a transmission tower that can receive radio waves.
3)
Computer
Input* devices
|
Keyboard
(to enter information)
Mouse
(controls cursor)
Camera
Microphone
|
Output* devices
|
Monitor/screen
(shows what you are doing)
Printer
(produces a printed copy)
Speaker
|
CPU
|
Central
Processing Unit, the main part (heart=mtima) of the computer. A computer is a
very clever technology. It can do mathematics much more difficult that you
will ever do in school. All the skills of the computer come from the CPU.
|
*Input = to
put information inside, to enter information
inside =
mkati
output = to
reveive information
outside =
panja
4)
Internet
What is the internet?
The
internet is a connection of many computers and mobile phones around the world.
The information on the internet is arranged on websites. People use the
internet to store and find information quickly.
How does the internet work?
- The user enters information
through the input devices of the computer
- The CPU converts the
information into digital language/digital signals
- The digital signals are send to
a satellite in space
- The satellite in space sends
the digital signals back to earth to the receiver/internet dongle
- The CPU converts it into
readable information
- The user receives information
through output devices
Revision
1) How do information and communication technologies connect?
I fix these
charts on the board:
Questions
for the learners:
How do
phones connect?
- Two fixed phone within Senga
Bay (same local level)
- Two fixed phones in different
areas (Lilongwe to Senga Bay)
- Mobile phones
- A phone in Malawi to a phone in
Germany
- What are examples for telephone
network providers?
How does
the radio connect to the radio station?
How does
the computer connect to the internet?
How does
the television connect?
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