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Wiskunde

Graad 5

Meetkunde, datahantering en waarskynlikheid

Module 44

Meetkunde

Aktiwiteit 1:

Om 2d-vorms te beskryf, te sorteer en te vergelyk [lu 3.2.2]

2d-vorms te ondersoek en te vergelyk [lu 3.3.3]

1. Kom ons hersien die werk wat jy in graad 4 gedoen het. Kyk sommer hoe goed jou geheue is. Vir die volgende aktiwiteit moet jy jou pa se hamer en spykers gebruik. Pasop net vir jou duim!

Jy benodig:

‘n Houtplankie - 30 cm × 30 cm

Spykers

Rekkies

Slaan die spykers ongeveer 1,5 cm van mekaar af in.

Onthou jy nog?

’n Vierhoek is enige figuur met 4 sye en 4 hoeke.

’n Vierkant het vier ewe lang sye en vier 90° hoeke.

’n Reghoek se teenoorstaande sye is ewe lank en al 4 die hoeke is 90°.

’n Driehoek is enige figuur met 3 hoeke en 3 sye.

1.1 Vorm die volgende figure met die rekkies op die spykerbord.

1.2 Teken twee van elke figuur op ‘n kolletjiesblad.

Vierhoek

Vierkant

Reghoek

Driehoek

1.3 Hou ‘n klasbespreking. Maak ‘n lys van al die ooreenkomste tussen jou figure op die spykerbord.

1.4 Teken en kyk nou hoeveel verskille julle as klas tussen die figure op ‘n kolletjiesblad kan raaksien.

Aktiwiteit 2:

  • Om 2D-vorms vanaf tekeninge en prente te beskryf, te sorteer en te vergelyk [LU 3.2.2]
  • Om natuurlike en kulturele 2D-vorms te herken en te beskryf [LU 3.6]

1. Blaai nou deur ou koerante en tydskrifte en knip voorbeelde uit van vierhoeke, vierkante, reghoeke en driehoeke. Plak hulle op ‘n vel papier. Laat ‘n maat kontroleer of jy reg gewerk het. (Wenk: Kyk of die eienskappe van die figuur pas by dit wat jou maat geplak het!)

Aktiwiteit 3:

Om 2d-vorms te visualiseer en te benoem [lu 3.1.2]

Kom ons kyk hoe fyn jy kan kyk. Hieronder is vierkante, driehoeke en sirkels bo-op mekaar neergesit. Kyk goed daarna en voltooi dan die opdragte wat volg.

1. Kleur die deel van al die driehoeke wat jy kan sien pers in. Hoeveel driehoeke is daar?

2. Kleur al die sirkels pienk in. Hoeveel sirkels is daar?

3. Kleur al die vierkante rooi in. Hoeveel vierkante is daar?

4. Kleur al die reghoeke groen in. Hoeveel reghoeke is daar?

4. Rangskik die getalle in die sirkel van groot na klein.

5. Watter getal is in die vierkant en as dit verdubbel word, is dit 34 minder as 100?

Aktiwiteit 4:

Om 2d-vorms te vergelyk n.a.v. sekere eienskappe [lu 3.2.2]

Hoewel dit baie eenvoudig klink, is dit tog belangrik dat jy weet hoeveel sye en hoeke ‘n figuur het, omdat dit ons kan help om veelhoeke maklik te klassifiseer. Gebruik die tekeninge hieronder en voltooi dan die tabel.

Driehoek , Vierhoek en Vyfhoek

Seshoek, Sewehoek en Agthoek

Getal sye in die veelhoek 3 4 5 ......... ......... 8 12 100 220
Getal driehoeke in die veelhoek 1 ......... ......... 4 5 ......... ......... ......... .........

Aktiwiteit 5:

Om 2d-vorms te maak en te beskryf in terme van simmetrie [lu 3.3.1]

Hierdie aktiwiteit is ‘n taak vir jou portefeulje. Lees die opdragte sowel as die kriteria vir die assessering goed deur voordat jy begin. Vra jou opvoeder om te verduidelik waar nodig.

Toets eers jou geheue. Kan jy aan jou maat verduidelik wat “simmetrie” beteken?

1. Gebruik tydskrifte en soek prente van vorms / figure wat simmetries is.

Questions & Answers

how does Neisseria cause meningitis
Nyibol Reply
what is microbiologist
Muhammad Reply
what is errata
Muhammad
is the branch of biology that deals with the study of microorganisms.
Ntefuni Reply
What is microbiology
Mercy Reply
studies of microbes
Louisiaste
when we takee the specimen which lumbar,spin,
Ziyad Reply
How bacteria create energy to survive?
Muhamad Reply
Bacteria doesn't produce energy they are dependent upon their substrate in case of lack of nutrients they are able to make spores which helps them to sustain in harsh environments
_Adnan
But not all bacteria make spores, l mean Eukaryotic cells have Mitochondria which acts as powerhouse for them, since bacteria don't have it, what is the substitution for it?
Muhamad
they make spores
Louisiaste
what is sporadic nd endemic, epidemic
Aminu Reply
the significance of food webs for disease transmission
Abreham
food webs brings about an infection as an individual depends on number of diseased foods or carriers dully.
Mark
explain assimilatory nitrate reduction
Esinniobiwa Reply
Assimilatory nitrate reduction is a process that occurs in some microorganisms, such as bacteria and archaea, in which nitrate (NO3-) is reduced to nitrite (NO2-), and then further reduced to ammonia (NH3).
Elkana
This process is called assimilatory nitrate reduction because the nitrogen that is produced is incorporated in the cells of microorganisms where it can be used in the synthesis of amino acids and other nitrogen products
Elkana
Examples of thermophilic organisms
Shu Reply
Give Examples of thermophilic organisms
Shu
advantages of normal Flora to the host
Micheal Reply
Prevent foreign microbes to the host
Abubakar
they provide healthier benefits to their hosts
ayesha
They are friends to host only when Host immune system is strong and become enemies when the host immune system is weakened . very bad relationship!
Mark
what is cell
faisal Reply
cell is the smallest unit of life
Fauziya
cell is the smallest unit of life
Akanni
ok
Innocent
cell is the structural and functional unit of life
Hasan
is the fundamental units of Life
Musa
what are emergency diseases
Micheal Reply
There are nothing like emergency disease but there are some common medical emergency which can occur simultaneously like Bleeding,heart attack,Breathing difficulties,severe pain heart stock.Hope you will get my point .Have a nice day ❣️
_Adnan
define infection ,prevention and control
Innocent
I think infection prevention and control is the avoidance of all things we do that gives out break of infections and promotion of health practices that promote life
Lubega
Heyy Lubega hussein where are u from?
_Adnan
en français
Adama
which site have a normal flora
ESTHER Reply
Many sites of the body have it Skin Nasal cavity Oral cavity Gastro intestinal tract
Safaa
skin
Asiina
skin,Oral,Nasal,GIt
Sadik
How can Commensal can Bacteria change into pathogen?
Sadik
How can Commensal Bacteria change into pathogen?
Sadik
all
Tesfaye
by fussion
Asiina
what are the advantages of normal Flora to the host
Micheal
what are the ways of control and prevention of nosocomial infection in the hospital
Micheal
what is inflammation
Shelly Reply
part of a tissue or an organ being wounded or bruised.
Wilfred
what term is used to name and classify microorganisms?
Micheal Reply
Binomial nomenclature
adeolu
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Source:  OpenStax, Wiskunde graad 5. OpenStax CNX. Sep 07, 2009 Download for free at http://cnx.org/content/col10993/1.1
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