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1.1 Die sigsintuig

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Natuurwetenskappe

Graad 4

Lewe en lewenswyse

Module 2

Die sigsintuig

Aktiwiteit:

Om te leer oor die sigsintuig

[lu 2.1]

Slim mense sê die oë is die siel van die mens, want as ‘n mens in iemand se oë kyk, kan jy dikwels agterkom watter tipe mens dit is. Sig is een van ons belangrikste sintuie, want dit gee jou ‘n prentjie van dit wat om jou aangaan.

Jou oë het lig nodig om te kan sien. Lig weerkaats van alles wat jy sien en gaan deur die klein swart gaatjie in die middel van jou oog, wat ons die pupil noem. Lig kan van die son af kom, of selfs van ‘n elektriese gloeilamp. As dit effens donker is, word jou pupille groter om meer lig deur te laat, maar wanneer die lig skerp is, word jou pupille kleiner om jou oë te beskerm. Die boodskap van wat jy sien, gaan deur ‘n senuwee na jou brein.

Opdrag:

Voltooi die tekening van die oog deur die byskrifte op die lyntjies, netjies in drukskrif, te skryf.

Hou ‘n groepbespreking oor die volgende:

Hoekom dra sommige mense ‘n bril?

Hoe moet ons optree teenoor kinders in ons klas wat bril dra?

Hou een oog toe, bespreek nou die nut daarvan om twee oë te hê.

Probeer ‘n bal vang met een oog toe.

Baie mense is blind. Hou jou oë styf toe vir ‘n paar minute en kyk hoe jy voel. Hoe moet ons teenoor blinde mense optree?

Assessering

 

LU 2

KONSTRUKSIE VAN WETENSKAPKENNIS Die leerder ken, interpreteer en pas wetenskaplike, tegnologiese en omgewingskennis toe.

 

Dit is duidelik wanneer die leerder:

2.1   betekenisvolle inligting onthou;

2.2       inligting kategoriseer.

 

Memorandum

Opdrag

Oogbyskrifte:

  1. ooglid
  2. oogbol
  3. pupi
  4. ooghare

Questions & Answers

What are the factors that affect demand for a commodity
Florence Reply
differentiate between demand and supply giving examples
Lambiv Reply
differentiated between demand and supply using examples
Lambiv
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Lambiv
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Venny Reply
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Eliyee
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Eliyee
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WARKISA
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Lambiv
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Aster Reply
appreciation
Eliyee
explain perfect market
Lindiwe Reply
In economics, a perfect market refers to a theoretical construct where all participants have perfect information, goods are homogenous, there are no barriers to entry or exit, and prices are determined solely by supply and demand. It's an idealized model used for analysis,
Ezea
What is ceteris paribus?
Shukri Reply
other things being equal
AI-Robot
When MP₁ becomes negative, TP start to decline. Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of lab
Kelo
Extuples Suppose that the short-run production function of certain cut-flower firm is given by: Q=4KL-0.6K2 - 0.112 • Where is quantity of cut flower produced, I is labour input and K is fixed capital input (K-5). Determine the average product of labour (APL) and marginal product of labour (MPL)
Kelo
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Shukri
Can I ask you other question?
Shukri
what is monopoly mean?
Habtamu Reply
What is different between quantity demand and demand?
Shukri Reply
Quantity demanded refers to the specific amount of a good or service that consumers are willing and able to purchase at a give price and within a specific time period. Demand, on the other hand, is a broader concept that encompasses the entire relationship between price and quantity demanded
Ezea
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Shukri
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Lilia Reply
what is the difference between economic growth and development
Fiker Reply
Economic growth as an increase in the production and consumption of goods and services within an economy.but Economic development as a broader concept that encompasses not only economic growth but also social & human well being.
Shukri
production function means
Jabir
What do you think is more important to focus on when considering inequality ?
Abdisa Reply
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Awais Reply
sir...I just want to ask one question... Define the term contract curve? if you are free please help me to find this answer 🙏
Asui
it is a curve that we get after connecting the pareto optimal combinations of two consumers after their mutually beneficial trade offs
Awais
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Asui
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities, where neither p
Cornelius
In economics, the contract curve refers to the set of points in an Edgeworth box diagram where both parties involved in a trade cannot be made better off without making one of them worse off. It represents the Pareto efficient allocations of goods between two individuals or entities,
Cornelius
Suppose a consumer consuming two commodities X and Y has The following utility function u=X0.4 Y0.6. If the price of the X and Y are 2 and 3 respectively and income Constraint is birr 50. A,Calculate quantities of x and y which maximize utility. B,Calculate value of Lagrange multiplier. C,Calculate quantities of X and Y consumed with a given price. D,alculate optimum level of output .
Feyisa Reply
Answer
Feyisa
c
Jabir
the market for lemon has 10 potential consumers, each having an individual demand curve p=101-10Qi, where p is price in dollar's per cup and Qi is the number of cups demanded per week by the i th consumer.Find the market demand curve using algebra. Draw an individual demand curve and the market dema
Gsbwnw Reply
suppose the production function is given by ( L, K)=L¼K¾.assuming capital is fixed find APL and MPL. consider the following short run production function:Q=6L²-0.4L³ a) find the value of L that maximizes output b)find the value of L that maximizes marginal product
Abdureman
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Source:  OpenStax, Natuurwetenskappe graad 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11097/1.1
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