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Maak baie seker dat die leerders nie die voorste getal van ‘n aftrekbewerking herbenoem nie. ( Dit is die rede waarom hulle later probleme ondervind as hulle ‘n bewerking waar ‘n groep van 10 ontbind moet word, kry. )

Voorbeeld: 76 - 12 = ______

Probeer dit!

Gooi 76 tellers, wat in tiene en ene gegroepeer is, in ‘n plastieksak.

Laat ‘n leerder nou 2 kom uithaal.

Vra : Hoeveel is in die sak oor? 74

Wat is gedoen? ( 2 ene is uitgehaal) Skryf : 76 - 2 = 74

Laat ‘n ander leerder nou die 10 kom uithaal.

Vra : Wat is nou oor in die sak? 64

Wat is gedoen? ( 1 tien is uitgehaal) Skryf : 74 - 10 = 64

Om te toets, word eers 10 en dan 2 weer terug in die sak gegooi. Nou is daar weer 76 .

Onthou : Alle bewerkings word nog sonder oordrag of ontbinding van ‘n tien gedoen.

Leerders kan horisontaal of vertikaal werk. Dit is hulle keuse.

Help die leerders net om aan die gang te kom met die ontsyfering van die geheime kode. Hulle moet net begryp dat elke teken ‘n letter van die alfabet voorstel. Los hulle dan om self te probeer.

Moedig almal aan om iets met die kode te skryf, al is dit net hul eie naam.

Dit is ook ‘n geleentheid om uit te vind wie reeds die alfabet ken. Dalk kan dit sommer dien as aansporing om dit te leer.

Leerders afdeling

Inhoud

Aktiwiteit: syferpad [lu 1.1, lu 1.6, lu 1.3, lu 1.4, lu 1.10]

  • Hier is die syferpad wat Bonnie en Tommie loop tot by die skool. Volg die pad en vul die getalle in wat weggelaat is.
  • Bonnie en Tommie het geld gebring om lekkers te koop. Kom ons tel die geld in hulle beursies.

Bonnie het ____________________ c.

Tommie het ____________________ c.

________________________ het meer geld as _________________________

Sy het _____________________________c meer as hy.

  • Bonnie koop lekkers vir 20c. Nou het sy nog ......................... c oor.
  • Tommie koop lekkers vir 10c. Nou het hy nog ......................... c oor.
  • Hulle gooi hulle geld bymekaar. Nou het hulle ......................... c altesaam.
  • Hoeveel tiensentstukke het hulle? ......................... .Teken dit. ('n Sirkel met 10c daarin geskryf, is goed genoeg.)
LU 1.1 LU 1.6
  • Flinkdink!
Maak Bonnie se getalle: Maak Tommie se getalle:
1 meer 2 meer 1 minder 2 minder
8 + 1 = .............. 3 + 2 = .............. 7 - 1 = .............. 6 - 2 = ..............
6 + 1 = .............. 7 + 2 = .............. 9 - 1 = .............. 8 - 2 = ..............
2 + 1 = .............. 1 + 2 = .............. 5 - 1 = .............. 4 - 2 = ..............
4 + 1 = .............. 5 + 2 = .............. 6 - 1 = .............. 9 - 2 = ..............
7 + 1 = .............. 4 + 2 = .............. 3 - 1 = .............. 5 - 2 = ..............
3 + 1 = .............. 2 + 2 = .............. 8 - 1 = .............. 3 - 2 = ..............
5 + 1 = .............. 6 + 2 = .............. 4 - 1 = .............. 7 - 2 = ..............
  • Mamma gee vir Bonnie en Tommie elkeen 4 wortels . Teken elkeen se wortels in sy kosblik en voltooi die getalsinne.
  • Getalsinne:
4 + 4 = ......................... 2 viere is ......................... 2 x 4 = .........................
3 + 3 = ......................... 2 drieë is ......................... 2 x 3 = .........................
5 + 5 = ......................... 2 vywe is ......................... 2 x 5 = .........................
2 + 2 = ......................... 2 tweë is ......................... 2 x 2 = .........................
10 + 10 = ......................... 2 tiene is ......................... 2 x 10 = .........................
20 + 20 = ......................... 2 twintigs is ...................... 2 x 20 = .........................
  • Kopkrap!

Bonnie sê: Alle rigtings = 9 Tommie sê: Alle rigtings =12

2 3 4 5
4 3 4
4
LU 1.1 LU 1.10
1 ____ 3 ____ ____ ____ ____ ____ ____ 10
____ 12 ____ ____ ____ ____ ____ ____ ____ ____
____ ____ ____ ____ ____ ____ 27 ____ ____ 30
31 ____ ____ ____ ____ ____ ____ ____ ____ ____
____ ____ ____ 44 ____ ____ ____ ____ ____ 50
  • Soek Bonnie se getalle en vul hulle op die getalleblok in.

sewe; negentien; twee en twintig; vyf en dertig;

nege en veertig; veertien; drie en dertig;

sestien; een en veertig; ag en twintig

  • Tommie se getalle is op die getalleblok ingevul. Help hom om die getal en die getalnaam te skryf, bv. 1 : een

3 : ___________________________

_ _ : ___________________________

_ _ : ___________________________

_ _ : ___________________________

10 : ___________________________

_ _ : ___________________________

_ _ : ___________________________

_ _ : ___________________________

  • Bonnie moet die getalle van die kleinste tot die grootste sorteer en skryf:

5; 40; 18; 36; 29; 45; 33

____ ____ ____ ____ ____ ____ ____

  • Tommie moet syne van die grootste tot die kleinste sorteer en skryf.

46; 26; 13; 24; 1 1; 43 34

____ ____ ____ ____ ____ ____ ____

LU 1.3 LU 1.4
  • Tommie kruip vir Bonnie weg. Help haar om hom te soek. Tel elke keer 3 by en volg die syferpad.

Hoera! Hier is Tommie!

  • Help nou weer vir Bonnie om die pad terug huis toe te kry.

Bonnie en Tommie werk met die rekenaar. Hulle voer getalle in die rekenaar in. Wat kom uit?

  • Voltooi:
  • Daar staan 5 driewiele in die winkel. Hoeveel wiele sien jy?
  • __________ wiele. Teken die wiele soos vir elke driewiel.
LU 1.1

Assessering

Leeruitkomste 1: Die leerder is in staat om getalle en die verwantskappe daarvan te herken, te beskryf en voor te stel, en om tydens probleemoplossing bevoeg en met selfvertroue te tel, te skat, te bereken en te kontroleer.

Assesseringstandaard 1.1: Dit is duidelik wanneer die leerder aan en terug tel in:

1.1.1 die intervalle aangedui vir graad 2 met toenemende getalomvang;

Assesseringstandaard 1.3: Dit is duidelik wanneer die leerder ken, lees en skryf getalsimbole en -name van 1 tot minstens 1 000;

Assesseringstandaard 1.6: Dit is duidelik wanneer die leerder geldprobleme oplos wat totale en kleingeld in rand en sent behels, insluitend herleiding tussen rand en sent;

Assesseringstandaard 1.10: Dit is duidelik wanneer die leerder die volgende tegnieke gebruik:

1.10.1 opbou en afbreek van getalle;

1.10.2 verdubbeling en halvering;

1.10.3 getallelyne;

1.10.4 afronding in tiene.

Questions & Answers

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 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
How we are making nano material?
LITNING Reply
what is a peer
LITNING Reply
What is meant by 'nano scale'?
LITNING Reply
What is STMs full form?
LITNING
scanning tunneling microscope
Sahil
how nano science is used for hydrophobicity
Santosh
Do u think that Graphene and Fullrene fiber can be used to make Air Plane body structure the lightest and strongest. Rafiq
Rafiq
what is differents between GO and RGO?
Mahi
what is simplest way to understand the applications of nano robots used to detect the cancer affected cell of human body.? How this robot is carried to required site of body cell.? what will be the carrier material and how can be detected that correct delivery of drug is done Rafiq
Rafiq
if virus is killing to make ARTIFICIAL DNA OF GRAPHENE FOR KILLED THE VIRUS .THIS IS OUR ASSUMPTION
Anam
analytical skills graphene is prepared to kill any type viruses .
Anam
Any one who tell me about Preparation and application of Nanomaterial for drug Delivery
Hafiz
what is Nano technology ?
Bob Reply
write examples of Nano molecule?
Bob
The nanotechnology is as new science, to scale nanometric
brayan
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Damian
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
Renato
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 3. OpenStax CNX. Oct 14, 2009 Download for free at http://cnx.org/content/col11129/1.1
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