<< Chapter < Page Chapter >> Page >

Hierdie is verrykingswerk en as u dit te gevorderd vind, kan dit in 'n later stadium gedoen word. Daar mag wel leerders wees wat die uitdaging sal aanvaar.

Aangesien 3 x en ÷ pas voltooi is, is dit maklik om derdes nou aan te pak.

Gee aan die leerders los vorms van papier en laat hulle vou en meet en self ontdek hoe dit gedoen kan word. Sommige van die leerders sal self weet hoe om nou sesdes te kry. (Slegs verryking)

Die idee van die resep is om die leerders te laat besef dat die gebruik van standaard meeteenhede en houers noodsaaklik is.

Laat die leerders nog voorbeelde noem waar standaard meeteenhede om inhoud te meet daagliks gebruik word, bv. brandstof, melk, meng van bestanddele vir medisyne, voorskrifte vir toediening van medikasie, ens.

Dit is noodsaaklik dat al die verskillende standaard maathouers en skale, asook sand, water en ander voorwerpe om inhoud en massa te meet, in die klas beskikbaar moet wees. Die leerders moet daagliks kan eksperimenteer met hierdie standaard meeteenhede: liter en milliliter en gram en kilogram .

'n Badkamerskaal is nodig om die leerders se massas te bepaal.

Verskillende metodes word gebruik vir die vermenigvuldig- en deelbewerkings, maar indien u van 'n ander metode gebruik maak en die leerders dit beter verstaan, is dit hulle reg om die metode wat hulle verkies, te gebruik.

Dit is noodsaaklik dat baie soortgelyke voorbeelde van die betrokke getalsinne eers mondeling gedoen word, voordat van die leerders verwag kan word om hierdie werkvel te voltooi.

Die volmaak van 'n honderd en die ontbinding van 'n honderd word nou formeel aangeleer. Baie konkrete werk moet vooraf gedoen word. Meer gevorde werk waar 'n tien en 'n honderd gelyktydig oorgedra of ontbind word, moet nie op dieselfde tyd gedoen word nie. Dit sal van die groep se vermoëns afhang of dit net hierna of op 'n baie later stadium gedoen moet word.

Dit bly die opvoeder se keuse of die leerders hulpsyfers by die vertikale bewerkings gaan gebruik.

Leerders sal 'n skoon vel papier nodig hê om die korste pad te bereken. Sommige leerders mag dit moeilik vind, maar met 'n bietjie hulp, behoort hulle dit te kan doen.

'n Bespreking oor wat hulle sal sien, afhangende van die rigting waaruit hulle na die huis aangery kom, is nodig voordat die leerders dit kan teken.

Leerders afdeling

Inhoud

Aktiwiteit: getalsin [lu 1.8, lu 1.10]

1. Hierdie patrone kan julle help om met groter getalle te werk. Voltooi dit.

2. Kyk hoe Bonnie en Tommie hierdie probleem vir Oupa opgelos het:

Oupa het 48 varke op die plaas en daar is 4 varkhokke. Hoeveel varke moet hy in elke hok sit?

Getalsin: 48 ÷ 4 = ____________________________

  • Help nou vir Ouma op dieselfde manier om hierdie probleem op te los? Ouma het 69 rose gepluk en wil ewe veel in 3 verskillende blompotte sit. Hoeveel moet sy in elke blompot sit?

Getalsin: ____________________________________________________________

Ouma moet ___________________________________________________________

  • Doen die bewerkings en gebruik die metode wat jy verkies:

42 ÷ 2 = ______________________________________________

68 ÷ 2 = ______________________________________________

96 ÷ 3 = ______________________________________________

63 ÷ 3 = ______________________________________________

84 ÷ 4 = ______________________________________________

44 ÷ 4 = ______________________________________________

  • Skryf 'n storie om by elke getalsin te pas. Doen dan die bewerking.

35 + 42 + 1 7 = _______________________________________

90 - 53 + 12 = _______________________________________

41 x 2 = _____________________________________________

66 ÷ 3 = _____________________________________________

  • Bonnie en Tommie het ontdek dat hulle soms genoeg tiene het om 'n groep van honderd vol te maak.

Getalsin: 56 + 62 = ________________________________________

  • Doen die bewerkings op die metode waarvan jy die meeste hou:

73 + 55 = _______________________________________________

46 + 63 = _______________________________________________

94 + 23 = _______________________________________________

  • Bonnie en Tommie het ook ontdek dat hulle soms nie genoeg tiene het om weg te neem nie en moes toe 'n groep van honderd ontbind.

Getalsin: 126 - 32 = ________________________________________

  • Doen die bewerkings op die metode waarvan jy die meeste hou:

1 18 - 25 = ________________________________________________

150 - 60 = ________________________________________________

147 - 60 = _________________________________________________

  • Vul die antwoorde in:

  • Voltooi die syferpad:
  • Vul die getalle in wat weggelaat is:
  • Hier is 'n padkaart vir Pappa. Daar is verskillende paaie wat hy kon ry om vir Bonnie en Tommie plaas toe te neem, maar watter pad is die kortste?
  • Bereken die kortste pad en teken dit op die kaart in.

  • Hoeveel km is die kortste pad? ______________________________________
  • As Pappa 100 km in 1 uur ry, hoe lank sal dit vir hulle neem om daar te kom?

Dit sal _______________________________________________________________

  • Teken Oupa en Ouma se plaas met hulle huis daarop soos julle dit sal sien as julle daar aangery kom.

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 1.8: Dit is duidelik wanneer die leerder die gepaste simbole in berekeninge kan gebruik om probleme op te los;

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

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
Privacy Information Security Software Version 1.1a
Good
Got questions? Join the online conversation and get instant answers!
QuizOver.com Reply

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Wiskunde graad 3. OpenStax CNX. Oct 14, 2009 Download for free at http://cnx.org/content/col11129/1.1
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Wiskunde graad 3' conversation and receive update notifications?

Ask