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Wiskunde

Nog meetkunde, datahantering en waarskynlikheid

Opvoeders afdeling

Memorandum

3 cm 2 cm 10 cm 6 cm
6 cm 4 cm 20 cm 24 cm
9 cm 6 cm 30 cm 54 cm
15 cm 10 cm 50 cm 150 cm
3. (a)

(b) 2 keer meer; 3 keer meer;

5 keer meer as eerste reghoek

(c) 16 keer

4.2.1 – 4.2.4 Kontroleer leerders se poging

Leerders afdeling

Inhoud

Aktiwiteit: vergelyk groottes [lu 4.2, lu 3.8]

3. KOM ONS VERGELYK GROOTTES!

Die volgende reghoek is eers twee keer, dan drie keer en dan vyf keer vergroot.

Al die reghoeke het dieselfde verhouding vir lengte tot breedte: 3:2

a) Kyk nou weer na die reghoeke hierbo. Gestel elke blokkie is 1 cm by 1 cm. Voltooi die tabel.

Reghoek Lengte Breedte Omtrek Oppervlakte
1 ____________ ____________ ____________ ____________
2 ____________ ____________ ____________ ____________
3 ____________ ____________ ____________ ____________
4 ____________ ____________ ____________ ____________

b) Wat gebeur met die omtrek soos die reghoek elke keer vergroot?

_____________________________________________________________________

_____________________________________________________________________

c) Hoeveel keer is die oppervlakte groter as jy die reghoek vier keer vergroot?

_____________________________________________________________________

4.1 Het jy geweet?

Die verhouding op skaal word altyd in ’n bepaalde volgorde geskryf:

Die eerste getal hou verband met die tekening / plan .

Die tweede getal hou verband met die werklike lewe .

’n Skaal van 1 : 5 beteken die lengte is 5 maal kleiner as in die werklike lewe.

’n Skaal van 5 : 1 beteken die lengte is 5 maal groter as in die werklike lewe.

4.2.1 Gebruik die blokkiespapier en vergroot die skets op ’n skaal van 4:1.

4.2.2 Vergroot hierdie tekening op ’n skaal van 1 : 2.

4.2.3 Verklein die skets tot skaal 2 : 1.

4.2.4 KOPKRAPPER!

  • Kan jy hierdie tekening vergroot en oorteken?

Assessment

Leeruitkomste 3: Die leerder is in staat om eienskappe van en verwantskappe tussen twee-dimensionele vorms en drie-dimensionele voorwerpe in ‘n verskeidenheid oriëntasies en posisies te beskryf en voor te stel.

Assesseringstandaard 3.8: Dit is duidelik wanneer die leerder posisie/ligging op koördinaatstelsels (geordende roosters) en kaarte bepaal.

Leeruitkomste 4: Die leerder is in staat om gepaste meeteenhede, instrumente en formules in ‘n verskeidenheid kontekste te gebruik.

Assesseringstandaard 4.2: Dit is duidelik wanneer die leerder probleme oplos.

Questions & Answers

who was the first nanotechnologist
Lizzy Reply
k
Veysel
technologist's thinker father is Richard Feynman but the literature first user scientist Nario Tagunichi.
Veysel
Norio Taniguchi
puvananathan
Interesting
Andr
I need help
Richard
anyone have book of Abdel Salam Hamdy Makhlouf book in pdf Fundamentals of Nanoparticles: Classifications, Synthesis
Naeem Reply
what happen with The nano material on The deep space.?
pedro Reply
It could change the whole space science.
puvananathan
the characteristics of nano materials can be studied by solving which equation?
sibaram Reply
plz answer fast
sibaram
synthesis of nano materials by chemical reaction taking place in aqueous solvents under high temperature and pressure is call?
sibaram
hydrothermal synthesis
ISHFAQ
how can chip be made from sand
Eke Reply
is this allso about nanoscale material
Almas
are nano particles real
Missy Reply
yeah
Joseph
Hello, if I study Physics teacher in bachelor, can I study Nanotechnology in master?
Lale Reply
no can't
Lohitha
where is the latest information on a no technology how can I find it
William
currently
William
where we get a research paper on Nano chemistry....?
Maira Reply
nanopartical of organic/inorganic / physical chemistry , pdf / thesis / review
Ali
what are the products of Nano chemistry?
Maira Reply
There are lots of products of nano chemistry... Like nano coatings.....carbon fiber.. And lots of others..
learn
Even nanotechnology is pretty much all about chemistry... Its the chemistry on quantum or atomic level
learn
Google
da
no nanotechnology is also a part of physics and maths it requires angle formulas and some pressure regarding concepts
Bhagvanji
hey
Giriraj
Preparation and Applications of Nanomaterial for Drug Delivery
Hafiz Reply
revolt
da
Application of nanotechnology in medicine
has a lot of application modern world
Kamaluddeen
yes
narayan
what is variations in raman spectra for nanomaterials
Jyoti Reply
ya I also want to know the raman spectra
Bhagvanji
I only see partial conversation and what's the question here!
Crow Reply
what about nanotechnology for water purification
RAW Reply
please someone correct me if I'm wrong but I think one can use nanoparticles, specially silver nanoparticles for water treatment.
Damian
yes that's correct
Professor
I think
Professor
Nasa has use it in the 60's, copper as water purification in the moon travel.
Alexandre
nanocopper obvius
Alexandre
what is the stm
Brian Reply
is there industrial application of fullrenes. What is the method to prepare fullrene on large scale.?
Rafiq
industrial application...? mmm I think on the medical side as drug carrier, but you should go deeper on your research, I may be wrong
Damian
STM - Scanning Tunneling Microscope.
puvananathan
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Wiskunde graad 7. OpenStax CNX. Oct 21, 2009 Download for free at http://cnx.org/content/col11076/1.2
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