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VERSKILLE

tussen ruit en vierkant

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17.2 Vorm ander groepe van drie elk. Volg dieselfde instruksies as in 17.1, maar bou nou ’n reghoek. As jy op die hoekpunt druk, sal dit in ’n parallelogram verander.

  • Vergelyk nou die reghoek met die parallelogram en voltooi die tabel:

OOREENKOMSTE

tussen reghoek en parallelogram

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VERSKILLE

tussen reghoek en parallelogram

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18. Wat noem ons hierdie meetkundige figure?

a)

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b)

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19. Deel in groepe van vier. Jul opvoeder sal julle sê wie a,b,c en d moet doen.

19.1 Hou ’n bespreking oor die ooreenkomste en verskille tussen:

a) ’n ruit en ’n vlieër

b) ’n trapesium en ’n parallelogram

c) ’n reghoek en ’n trapesium

d) ’n vlieër en ’n trapesium

19.2 Maak ’n plakkaat om bogenoemde te verduidelik en gee terugvoering aan die klas.

20. Het jy geweet?

In Wiskunde sê ons ’n figuur is stewig as hy sy oorspronklike vorm behou, indien druk op een van die hoekpunte toegepas word, bv.

Nie stewig nie

Stewig

20.1 Verdeel nou in pare. Gebruik koeldrankstrooitjies en bou enige stewige konstruksie. Kyk dan of julle die hoogste konstruksie in die klas kan bou!

20.2 LET OP!

’n Driehoek is die enigste veelhoek wat rigied / stewig is. Dit verander nie van vorm as jy op enige punt van die raam druk nie.Waar, dink jy, word driehoeke gereeld deur ingenieurs en bouers gebruik om stabiliteit te verseker?

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21. Tyd vir selfassessering

  • Merk die toepaslike kolom.
Onseker Seker
Ek kan verduidelik wat die volgende is:
  • ’n veelhoek
  • ’n konvekse veelhoek
  • ’n konkawe veelhoek
  • ’n reëlmatige veelhoek
  • ’n onreëlmatige veelhoek
Ek ken die formule om die hoeke van ’n reëlmatige veelhoek te bereken
Ek kan ooreenkomste tussen die verskillende meetkundige vorms uitwys
Ek kan die verskille tussen die verskillende meetkundige vorms uitwys
Ek kan ’n stewige konstruksie m.b.v. koeldrankstrooitjies bou

Assessering

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 3.1: Dit is duidelik wanneer die leerder meetkundige figure en drie-dimensionele voorwerpe in natuurlike en kulturele vorms en ‘n meetkundige agtergrond herken, visualiseer en benoem, insluitend dié wat vroeër behandel is;

Leeruitkomste 2: Die leerder is in staat om patrone en verwantskappe te herken, te beskryf en voor te stel en probleme op te los deur algebraïese taal en vaardighede te gebruik.

Assesseringstandaard 2.3: Dit is duidelik wanneer die leerder voorstellings maak van en verwantskappe tussen veranderlikes gebruik sodat inset- en/of uitsetwaardes op ‘n verskeidenheid maniere bepaal kan word.

Questions & Answers

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what is a cell
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how is urine form
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what is antagonism?
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classification of plants, gymnosperm features.
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what is the features of gymnosperm
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malaria is caused by an insect called mosquito.
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Malaria is cause by female anopheles mosquito
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Malaria is caused by plasmodium Female anopheles mosquitoe is d carrier
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what are pathogens
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In biology, a pathogen (Greek: πάθος pathos "suffering", "passion" and -γενής -genēs "producer of") in the oldest and broadest sense, is anything that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ. The term pathogen came into use in the 1880s.[1][2
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A virus
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Definition of respiration
Muhsin Reply
respiration is the process in which we breath in oxygen and breath out carbon dioxide
Achor
how are lungs work
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Achiri Reply
in the mouth
EZEKIEL
what are the functions of follicle stimulating harmones?
Rashima Reply
stimulates the follicle to release the mature ovum into the oviduct
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what are the functions of Endocrine and pituitary gland
Chinaza
endocrine secrete hormone and regulate body process
Achor
while pituitary gland is an example of endocrine system and it's found in the Brain
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what's biology?
Egbodo Reply
Biology is the study of living organisms, divided into many specialized field that cover their morphology, physiology,anatomy, behaviour,origin and distribution.
Lisah
biology is the study of life.
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Biology is the study of how living organisms live and survive in a specific environment
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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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