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TEGNOLOGIE

Graad 5

TEKSTIELE VAN TOEKA TOT NOU

Module 15

OM MATERIAAL TE WEEF

HOE WORD MATERIAAL GEWEEF?

Dit word met ‘n weefraam gedoen. Drade word styf in die lengte gespan (die skering) en hulle beweeg afwisselend op en af terwyl dwarsdrade (die inslag) met ‘n spoel tussen elke beweging deurgevleg word.

Die vroeë bewoners van ons land het hul eie matte van riet gevleg waarop hulle geslaap het of wat hulle self gebruik het om matjieshuise van te bou. Mandjies kan ook van riet gevleg word.

Opdrag 1

Navorsing

Aan die Opvoeder:

Kry ‘n bekwame persoon wat ook hierdie matte of mandjies kan vleg en laat hy/sy dit vir die leerders demonstreer. Vra vir elke leerder ‘n donasie om die persoon vir sy moeite te vergoed.

[LU 3.1]

Opdrag 2

Konteks

Jy is ‘n lid van ‘n behoeftige gesin en aangesien beide jou ouers hard werk om jou op skool te hou, wil jy hulle graag help deur vir hulle iets te maak.

Probleem

Jou ma kla gereeld dat jou pa en die kinders modder in die huis intrap en omdat julle nie ‘n voordeurmat het nie, het jy besluit om vir jou ma een te weef.

Beperkings

Jy het slegs ‘n sekere lengte tou om die skering (lengtedrade) te span en ‘n druiwedoos se deksel wat jy as weefraam gaan gebruik, maar jy het nie wol om vir die inslag (dwarsdrade) te gebruik nie. Jy moet besluit watter materiaal vir die drade gebruik kan word. Jou eerste keuse, nl. plastieksakke, is nie meer gratis beskikbaar nie.

[LU 1.4]

Opdrag 3

Ontwerp

Indien jy plastieksakke tot jou beskikking het, kan jy dit gebruik. Indien nie, kan jy enige sintetiese of natuurlike materiaal gebruik as inslag.

Plastieksakke as opsie

Versamel soveel plastiek inkopiesakke as moontlik en sorteer hulle volgens soorte. Berei jou weefdrade voor deur die plastieksakke se handvatsels af te knip en al in die rondte ‘n lang strook van 3 cm breed te knip. Rol die stroke saam op in die vorm van ‘n sokkerbal.

Watter ander materiaal kan jy ook as inslag gebruik? Maak ‘n lys van al die moontlikhede. (Onthou dat jy nie geld het om duur materiaal te koop nie.)

[LU 1.5]

Kies een van die moontlikhede en motiveer waarom jy die keuse gemaak het.

[LU 1.6]

Vervaardiging

Berei die druiwedeksel voor deur kepe van 1 cm diep en 1 cm uit mekaar langs beide breedtes van die deksel te knip. Span die skering om die doos en heg die begin en einde stewig.

Plastieksakke as opsie

Maak vir jou ‘n spoel van dik karton en draai een plastieksak se strook daarom vas. Begin weef deur die punt van die plastiekstrook aan die hoek vas te bind en in te weef. Weef die strook afwisselend in die breedte oor en onder elke lengtedraad (skering) om die eerste ry te vorm. Weef nou afwisselend onder en oor die skering om die tweede ry te vorm. Moenie die strook te styf trek nie, want dit breek maklik. Herhaal die rye totdat die plastiekstrook opgebruik is. Skuif die inslag na elke ry met ‘n kam dig teen mekaar. Begin dan weer met ‘n volgende strook. Herhaal totdat die hele breedte toegeweef is. As jy baie van een soort plastieksak het, kan jy slegs een soort gebruik. Andersins kan jy jou eie mat ontwerp deur verskillende kleure sakke in ‘n sekere patroon wat herhaal word te gebruik.

Questions & Answers

can someone help me with some logarithmic and exponential equations.
Jeffrey Reply
sure. what is your question?
ninjadapaul
20/(×-6^2)
Salomon
okay, so you have 6 raised to the power of 2. what is that part of your answer
ninjadapaul
I don't understand what the A with approx sign and the boxed x mean
ninjadapaul
it think it's written 20/(X-6)^2 so it's 20 divided by X-6 squared
Salomon
I'm not sure why it wrote it the other way
Salomon
I got X =-6
Salomon
ok. so take the square root of both sides, now you have plus or minus the square root of 20= x-6
ninjadapaul
oops. ignore that.
ninjadapaul
so you not have an equal sign anywhere in the original equation?
ninjadapaul
Commplementary angles
Idrissa Reply
hello
Sherica
im all ears I need to learn
Sherica
right! what he said ⤴⤴⤴
Tamia
what is a good calculator for all algebra; would a Casio fx 260 work with all algebra equations? please name the cheapest, thanks.
Kevin Reply
a perfect square v²+2v+_
Dearan Reply
kkk nice
Abdirahman Reply
algebra 2 Inequalities:If equation 2 = 0 it is an open set?
Kim Reply
or infinite solutions?
Kim
The answer is neither. The function, 2 = 0 cannot exist. Hence, the function is undefined.
Al
y=10×
Embra Reply
if |A| not equal to 0 and order of A is n prove that adj (adj A = |A|
Nancy Reply
rolling four fair dice and getting an even number an all four dice
ramon Reply
Kristine 2*2*2=8
Bridget Reply
Differences Between Laspeyres and Paasche Indices
Emedobi Reply
No. 7x -4y is simplified from 4x + (3y + 3x) -7y
Mary Reply
is it 3×y ?
Joan Reply
J, combine like terms 7x-4y
Bridget Reply
im not good at math so would this help me
Rachael Reply
yes
Asali
I'm not good at math so would you help me
Samantha
what is the problem that i will help you to self with?
Asali
how do you translate this in Algebraic Expressions
linda Reply
Need to simplify the expresin. 3/7 (x+y)-1/7 (x-1)=
Crystal Reply
. After 3 months on a diet, Lisa had lost 12% of her original weight. She lost 21 pounds. What was Lisa's original weight?
Chris Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
Yes, Nanotechnology has a very fast field of applications and their is always something new to do with it...
Himanshu Reply
good afternoon madam
AMJAD
what is system testing
AMJAD
what is the application of nanotechnology?
Stotaw
In this morden time nanotechnology used in many field . 1-Electronics-manufacturad IC ,RAM,MRAM,solar panel etc 2-Helth and Medical-Nanomedicine,Drug Dilivery for cancer treatment etc 3- Atomobile -MEMS, Coating on car etc. and may other field for details you can check at Google
Azam
anybody can imagine what will be happen after 100 years from now in nano tech world
Prasenjit
after 100 year this will be not nanotechnology maybe this technology name will be change . maybe aftet 100 year . we work on electron lable practically about its properties and behaviour by the different instruments
Azam
name doesn't matter , whatever it will be change... I'm taking about effect on circumstances of the microscopic world
Prasenjit
how hard could it be to apply nanotechnology against viral infections such HIV or Ebola?
Damian
silver nanoparticles could handle the job?
Damian
not now but maybe in future only AgNP maybe any other nanomaterials
Azam
can nanotechnology change the direction of the face of the world
Prasenjit Reply
At high concentrations (>0.01 M), the relation between absorptivity coefficient and absorbance is no longer linear. This is due to the electrostatic interactions between the quantum dots in close proximity. If the concentration of the solution is high, another effect that is seen is the scattering of light from the large number of quantum dots. This assumption only works at low concentrations of the analyte. Presence of stray light.
Ali Reply
the Beer law works very well for dilute solutions but fails for very high concentrations. why?
bamidele Reply
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 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10978/1.2
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