# OpenStax-CNX

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• GETIntPhaseMaths

This module is included inLens: Siyavula: Mathematics (Gr. 4-6)
By: Siyavula

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# Om oppervlakte te bereken deur te ondersoek en te skat

Module by: Siyavula Uploaders. E-mail the author

## Memorandum

1. A: ± 20 blokkies = 20 x 25 mm²

B: ± 10 blokkies = 10 x 25 mm²

## AKTIWITEIT: Om oppervlakte te bereken deur te ondersoek en te skat [LU 4.8.2]

1. Bepaal nou die volgende voorwerpe se oppervlakte deur van die “blok-vel” metode gebruik te maak. (Elke blokkie is 5 mm by 5 mm.)

a: ___________________________________________________________________

b: ___________________________________________________________________

c: ___________________________________________________________________

d: ___________________________________________________________________

e: ___________________________________________________________________

f: ___________________________________________________________________

g: ___________________________________________________________________

(Bespreek die metode wat jy gebruik het met jou maat).

### Assessering

Leeruitkomste 4:Die leerder is in staat om gepaste meeteenhede, instrumente en formules in ‘n verskeidenheid kontekste te gebruik.

Assesseringstandaard 4.8: Dit is duidelik wanneer die leerder by benadering ondersoek en bepaal (alleen en/of as ‘n lid van ‘n groep of span):

4.8.2: oppervlakte van veelhoeke (m.b.v. vierkantroosters) ten einde reëls vir die berekening van oppervlakte van vierkante en reghoeke te ontwikkel.

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##### Lenses

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##### What are tags?

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