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Graad 4

Getalle, breuke, desimale breuke en getalpatrone

Module 6


Aktiwiteit 1:

  • Om veelvoude te herken, hulle te beskryf, voor te stel en te vergelyk [LU 1.3]
  • Om getalpatrone te ondersoek [LU 2.1]
  • Om getalpatrone te ondersoek [LU 2.2]
  • Om uitvoergetalle op te spoor [LU 2.3]

1. As ons in 6’e tel, sê ons die veelvoude van 6 op .

1.1 Werk saam met 'n maat. Een van julle moet van 0 tot 102 in 6'e tel. Die ander een moet 'n sakrekenaar gebruik om jou te kontroleer en om jou te stop wanneer jy 'n fout maak. Indien jy 'n fout maak, moet die maat met die sakrekenaar ”Stop!” sê en die sakrekenaar vir jou wys. Die tellery moet van daar af voortgaan. Wanneer die een wat tel, klaar is, moet julle omruil.

1.2 Skryf nou die ontbrekende veelvoude van 6 op hul plekke in die tabel hieronder:

1 2 3 4 5 6 7 8 9 10 11 12
× 6 6 12 18 24 30 60 66

1.3 Nou moet julle in 6'e terugtel van 102 tot by 0. Laat 'n maat jou tellery kontroleer en ruil dan om. Het julle enigiets interessants opgemerk? Wat ons opmerk, is dat die veelvoude van 6 almal gelyke getalle is.

1.4 Watter patrone merk jy op? Kyk net, die laaste syfers in die getalle is 6;..2; ..8; ..4; ..0. Hulle word herhaal en vorm dus 'n patroon.

Nou dat jy dít weet, kan jy sommer vir ewig aanhou om in 6'e te tel (indien jy goed genoeg bly konsentreer)!

1.5 Tel in 6’e en voltooi die vloeidiagram:

1.6 Hoe programmeer ons 'n sakrekenaar om in 6'e te tel?

Sleutel "clear" in en

1.7 Skryf die veelvoude van 6 van 102 tot 0:

1.8 Hoe programmeer ons 'n sakrekenaar om in 6'e van 102 af terug te tel?

Sleutel "clear" in en_______________________-

Nou is dit eers maklik om in 6'e te tel! Ons gaan dus oor na 7's.

2. Veelvoude van 7

2.1 Gebruik jou sakrekenaar (as jy dit nodig het) om in 7's te tel en die vloeidiagram te voltooi:

Kan jy enige patrone hier raaksien? Twee van hulle is hieronder neergeskryf. Kyk of jy meer kan raaksien en bespreek dit met 'n maat.

  • Daar is ewe en onewe getalle.
  • Dit lyk of hulle om die beurt onewe en ewe is.

2.2 Skryf nou die ontbrekende veelvoude van 7 in die oop spasies:

1 2 3 4 5 6 7 8 9 10 11 12
× 7 7 14 21 70 77

Dit lyk of daar 'n soort herhaling na die eerste 9 veelvoude voorkom. Is daar so 'n herhaling wat voortgaan?

Is daar enige ander patrone? Skryf neer wat jy opgemerk het.

  • Tel terug in 7's van 105 tot by 0. Gebruik jou sakrekenaar hiervoor as jy dit nodig het.
  • Skryf die ontbrekende veelvoude van 6 in die eerste ry van die tabel hieronder en die ontbrekende veelvoude van 7 in die volgende ry. Wat merk jy op wat interessant is?
1 2 3 4 5 6 7 8 9 10 11 12
× 6 6 12 18 24
× 7 7 14 21 28

2.5 Vergelyk die twee rye antwoorde wat horisontaal loop. Dit lyk of daar 'n interessante patroon aan ontwikkel is.

Kyk net: 1 × 7 = 1× 6 + 1 5 × 7 = 5 × 6 + …… 9 × 7 = 9 × 6 + ……

2 × 7 = 2 × 6 + ……. 6 × 7 = 6 × 6 + …… 10 × 7 = 10 × 6 + …..

3 × 7 = 3 × 6 + …… 7 × 7 = 7 × 6 + …… 11 × 7 = 11 × 6 +……

4 × 7 = 4 × 6 + …… 8 × 7 = 8 × 6 + …… 12 × 7 = 12 × 6 +……

3. Veelvoude van 8

3.1 Die getallelyn toon spronge van 8 heelgetalle. Gebruik die sakrekenaar om in 8's te tel en skryf die ontbrekende veelvoude van 8 onder die getallelyn in die korrekte posisies.

Questions & Answers

what is Nano technology ?
Bob Reply
write examples of Nano molecule?
The nanotechnology is as new science, to scale nanometric
nanotechnology is the study, desing, synthesis, manipulation and application of materials and functional systems through control of matter at nanoscale
Is there any normative that regulates the use of silver nanoparticles?
Damian Reply
what king of growth are you checking .?
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
yes I'm doing my masters in nanotechnology, we are being studying all these domains as well..
what school?
biomolecules are e building blocks of every organics and inorganic materials.
anyone know any internet site where one can find nanotechnology papers?
Damian Reply
sciencedirect big data base
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.
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
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
characteristics of micro business
for teaching engĺish at school how nano technology help us
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
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
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.
what is the actual application of fullerenes nowadays?
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.
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.
is Bucky paper clear?
carbon nanotubes has various application in fuel cells membrane, current research on cancer drug,and in electronics MEMS and NEMS etc
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.
Do you know which machine is used to that process?
how to fabricate graphene ink ?
for screen printed electrodes ?
What is lattice structure?
s. Reply
of graphene you mean?
or in general
in general
Graphene has a hexagonal structure
On having this app for quite a bit time, Haven't realised there's a chat room in it.
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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