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Natuurwetenskappe

Graad 4

Lewe en lewenswyse

Module 3

Die verhaal van louis braille

Aktiwiteit:

Iets vir die nuuskieriges

[lu 2.1]

Vind uit wat die Kirstenbosch Botaniese Tuin in Kaapstad spesiaal vir die blindes gedoen het.

Jou onderwyser sal vir jou die storie van Louis Braille lees. Gebruik nou die blokkie hieronder om vir jou maatjie ‘n kort boodskap in Braille te skryf. Gebruik die Braille-skrif langsaan.

Probeer om self die Braille-skrif te maak uit ou stukke karton.

Assessering

LU 2

KONSTRUKSIE VAN WETENSKAPKENNIS Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

 

Dit is duidelik wanneer die leerder:

2.1   betekenisvolle inligting onthou;

2.2       inligting kategoriseer.

Memorandum

Opdrag:

Kirstenbosch Botaniese Tuin in Kaapstad

  • blindes kan die blare in die kruietuin tussen hulle vingers vryf om dit te ruik en die tekstuur te voel
  • daar is ‘n reling vir hulle om aan vas te hou terwyl hulle stap
  • langs elke plant is ‘n nota in Braille-skrif, sodat hulle kan lees watter plant dit is.

Die storie van Louis Braille

Baie jare gelede het ‘n seuntjie met die naam van Louis in Frankryk saam met sy ouers gewoon. Hy was baie nuuskierig en geïnteresseerd in alles wat rondom hom gebeur. Sy pa was ‘n saalmaker van beroep en hy het vir ander mense saals vir hulle perde gemaak.

Eendag het Louis sonder toestemming in sy pa se werkswinkel ‘n stuk leer met sy pa se skerp mes probeer sny. Hy het nog nooit vantevore met die mes gewerk nie, die mes het geglip en een van sy oë raakgesny. Binne drie dae was daar infeksie in altwee oë en gou daarna was hy blind in beide oë.

Louis was steeds baie geïnteresseerd in alles wat rondom hom aangaan, maar hy het agtergekom dat dit baie moeilik was om blind te wees. Hy moes na ‘n spesiale skool vir blindes gaan waar hy dit baie moeilik gevind het om met hulle metodes te lees. Die letters was so half uitgeswel op die bladsy en hierdie metode was ‘n baie stadige manier van lees, en nog moeilik ook daarby.

Louis was vasberade om ‘n makliker manier te vind om te lees. Eendag het ‘n weermagoffisier vir hulle by die skool kom toespreek oor metodes wat hulle volg om boodskappe in die nag te stuur. Louis het toe die idee gekry om ‘n alfabet met 6 verhewe kolletjies te vorm. Hierdie skrif word Braille-skrif genoem wat ‘n kode van kolletjies op papier is. Jy lees deur jou vingers oor die kolletjies te beweeg.

Louis het later ‘n onderwyser aan die skool geword en het al die blinde leerders geleer om Braille te lees. Hierdie metode was ‘n geweldige vooruitgang in die tegnologie, want vandag kan blinde mense baie meer lees as voorheen, dus kan hulle net soos gewone kinders leer.

 

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
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Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
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Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, Natuurwetenskappe graad 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11097/1.1
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