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Tegnologie

Graad 4

My eie uitspringkaartjie

Module 14

Stoffel se koevert (deel 2)

G. Maak nou jou koevert (vervolg van Module 13)

Bring ‘n ou koevert saam skool toe. Maak dit versigtig oop en kyk hoe dit aanmekaar gesit is.

‘n Oopgevoude koevert lyk amper soos ‘n ruit (‘n meetkundige figuur met vier sye wat ewe lank is). Al verskil is dat een van die hoeke afgeknip of afgesny is en vier insnydings is aangebring sodat die koevert mooi kan toevou!

  • Jy moet al die prosesse ( a – h ) gebruik.
  • Besluit vooraf hoe jy die verskillende dele van die koevert gaan heg. (Jy kan dit met ‘n skoon A4-blad inoefen.)
  • Jy mag die mate van die koevert aanpas vanaf meegaande voorbeeld.
    a)
  • Plaas die vierkant voor jou soos hierbo aangetoon.
  • Bring die letters a, b, c, d aan op die hoeke.
    b)
  • Meet die afstande soos aangedui en trek die twee ligte, horisontale lyne.
    c)
  • Meet die afstande soos aangedui en trek liggies die twee vertikale lyne.
  • Nommer die hoeke 1, 2, 3, 4.
    d)
  • Trek harde lyne by a ,1; 1, b ; b ,2; 2, c ; c ,3, ens.
  • Trek kruisies om die afval aan te dui.
  • Trek strepies op lyne 1,2; 2,3, ens. Om die voulyne aan te dui, gebruik ‘n skerp potlood.
    e)

Kontrolepunt

  • Kom wys vir my.
  • Knip met ‘n veiligheidskêrtjie op lyne a 1, b 1, b 2, c 2, ens.
  • Gooi die afvalstukkies in die vullisblik.
    f)
  • Gebruik ‘n veiligheidsliniaal en ‘n skerp voubeen om die voulyne te stryk.
  • Druk die liniaal styf vas.Staan wanneer jy die voubeen gebruik.
    g)
  • Vou eers punt b na die binnekant, dan punt a en laastens punt c .Gaan vra jou onderwyser om jou te wys watter puntjies afgesny moet word.
    h)
  • Trek 'n ligte lyntjie om aan te dui waar, en tot waar, jy gom moet smeer.
  • Te veel gom sal onnet wees, omdat dit uitpeul.Vryf alle hoekies en rande plat.

Assessering

Leeruitkoms 1: tegnologiese prosesse en vaardighede

Die leerder is in staat om tegnologiese prosesse en vaardighede eties en verantwoordelik toe te pas deur toepaslike inligtings- en kommunikasietegnologie te gebruik.

Assesseringstandaard

Dis duidelik wanneer die leerder:

1.1 uitvind, met hulp, oor die agtergrondkonteks (bv. mense, omgewing) wanneer ‘n probleem, behoefte of geleentheid gegee word;

1.7 ’n kort beskrywing gee van ‘n plan om iets te maak en die hoofstappe noem;

  • gepaste gereedskap en materiaal gebruik om produkte te maak deur eenvoudige vorms in ‘n verskeidenheid soorte materiaal af te meet, uit te merk en te sny, en dit deur middel van verskeie tegnieke aan mekaar te heg of te las;
  • netjies en veilig werk.

Questions & Answers

What fields keep nano created devices from performing or assimulating ? Magnetic fields ? Are do they assimilate ?
Stoney Reply
why we need to study biomolecules, molecular biology in nanotechnology?
Adin Reply
?
Kyle
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
Adin
why?
Adin
what school?
Kyle
biomolecules are e building blocks of every organics and inorganic materials.
Joe
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
research.net
kanaga
sciencedirect big data base
Ernesto
Introduction about quantum dots in nanotechnology
Praveena Reply
what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
there is no specific books for beginners but there is book called principle of nanotechnology
NANO
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
NANO
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Tegnologie graad 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11098/1.1
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