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This module is included inLens: Siyavula: Mathematics (Gr. 7-9)
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Getallepatrone (Gauss se metode)

Module by: Siyavula Uploaders. E-mail the author

8.

c) (i) 465

(ii) 1 508

b).

Inhoud

AKTIWITEIT: Getallepatrone (Gauss se metode) [LU 2.2]

8. Het jy geweet?

Karl Friedrich Gauss (1777 - 1855) is op 9-jarige ouderdom deur sy opvoeder gevra om die getalle 1 tot 100 op te tel. Hy was in ’n rekordtyd klaar, en die metode wat hy gebruik het, staan vandag bekend as "Gauss se metode".

a) Hoe sou JY bogenoemde probleem oplos? ________________________________

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b) Kom ons kyk hoe Gauss die som bereken het!

• Elke paar, bv. 1 + 100 of 3 + 98, se somtotaal is 101. Daar is 50 pare in totaal. Die som is dus 50 × 101 = 5 050. Maklik, né!

c) Gebruik nou Gauss se metode en bepaal:

i) die som van die getalle van 1 tot 30

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ii) die som van die getalle van 5 tot 55

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Assessering

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 2.2: Dit is duidelik wanneer die leerder verwantskappe of reëls wat waargeneem is, in eie woorde beskryf, verduidelik en bewys.

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Definition of a lens

Lenses

A lens is a custom view of the content in the repository. You can think of it as a fancy kind of list that will let you see content through the eyes of organizations and people you trust.

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What are tags?

Tags are descriptors added by lens makers to help label content, attaching a vocabulary that is meaningful in the context of the lens.

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