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Life skills

Grade 2

Trees

Module 5

Trees

Trees

  • Trees form a very important part of our environment. We even have a day to remember their special role, Arbour Day. Most organisations try to plant a tree or a number of trees to mark this occasion. Why do we have a special day to remember trees?
  • Trees have many uses for mankind. Look at the diagram and discuss the many ways in which we use trees.

  • Not only are they useful but they also improve the beauty of our world.

From wood to paper

  • The products made from trees are usually made from wood. In your groups read about the process of how we use wood to make the very paper you write on.

1. When the trees have grown to a certain size,

they are marked to make sure that they are not all sawed off at the same time.

2. The trees are cut and taken to the sawmill.

3. Here they are stripped of their bark and cut into planks or smaller sizes.

4. The wood for paper is chopped and mashed until it is pulp.

5. It is dried and rolled into huge rolls of paper.

  • Hundreds of trees go into the making of paper. Every time a tree is cut to be made into paper, another tree must be planted, but it will take seven years for that tree to grow big enough. Trees are a precious resource and we must look after them.
  • Now answer these questions in your groups.

1. Why should we look after trees?

How can we look after trees?

  • Make drawings of what you can do to take care of your trees.
  • We have said that we get wood from trees, but wood is not only used to make paper. Wood has many uses. In the past it was essential just to keep warm, many houses were built of wood and most furniture was made of it Nowadays we use other materials to make furniture.
  • What materials are these? Find out and list them.
  • Do you think they are better?

Investigate a chair

  • What do we want when we sit in a chair?
  • It must be comfortable.
  • It must not break.
  • What else is important?

Try out the chairs in your home.

  • What are they made of?
  • What are their good points?
  • What are their weak points?
  • Fill in your findings in the table below.
Type of Chair Material Good points Bad points

Assessment

Learning Outcomes(LO’s)
LIFE ORIENTATIONLO 3
PERSONAL DEVELOPMENTThe learner will be able to use acquired life skills to achieve and extend personal potential to respond effectively to challenges in his or her world.
Assessment Standards(ASs)
We know this when the learner:
3.5 demonstrates appropriate classroom behaviour, including groupwork skills.
EMSLO 2
THE ECONOMIC CYCLE The learner will be able to demonstrate knowledge and understanding of the economic cycle within the context of ‘the economic problem’.
Assessment Standards(ASs)
We know this when the learner:
1.2 explains that wants can be unlimited , always changing and influenced by friends, the media and the development of new products and services by businesses;1.3 reads and identifies prices from different price tags and labels;1.4 calculates change after buying simple goods and services;1.5 expresses the importance and ways of saving and not wasting money and other resources (e.g. paper).
SOCIAL SCIENCESGEOGRAPHYLO 1
GEOGRAPHICAL ENQUIRY The learner will be able to use enquiry skills to investigate geographical and environmental concepts and processes.
Assessment Standards(ASs)
We know this when the learner:
1.2 identifies and describes significant features of places in the local context [answers the question].
TECHNOLOGYLO 1
TECHNOLOGICAL PROCESSES AND SKILLST he learner will be able to apply technological processes and skills ethically and responsibly using appropriate information and communication technologies.
Assessment Standards(ASs)
We know this when the learner:
1.3 ( designs ) – chooses suitable materials or substances to make products, and suggests some ways they can be used to satisfy a problem, need or opportunity;1.4 ( makes ) – expresses how products are going to be made.
ARTS AND CULTURELO 1
CREATING, INTERPRETING AND PRESENTING The learner will be able to create, interpret and present work in each of the art forms.
Assessment Standards(ASs)
We know this when the learner:
1.9 ( Visual Arts ) – identifies and uses patterns found in the immediate environment, using various materials in organised sequences and in combination.

Memorandum

Observe the trees all around us. Look at the different size and shapes, look at the texture of the bark and leaves. Allow the children to discover and create patterns with the leaves or textures they observe in the trees (A&C 1.8; 1.9).

Enact the tree growing from seed. Encourage the children to move slowly to show how the tree pushes out each tiny shoot or root. Then try to emulate movements in the wind.

Contrast the movements made by nature with a noisy timber factory, as the children become the machinery that will chop and cut and saw the wood as they

will read on the page about a timber factory (‘From wood to paper’).

(expressing and communicating: a&C 4.4).

First explain to the learners what the difference between a plantation and a forest is, and then let them draw a picture of a plantation on the cover page of the module.

Valentine’s Day is a good example of this. The business world just cashed in on people’s unlimited wants. Naturally these will continue to change. End the questionnaire by asking what they think their children might want (EMS LO 1.

Questions & Answers

what does nano mean?
Anassong Reply
nano basically means 10^(-9). nanometer is a unit to measure length.
Bharti
do you think it's worthwhile in the long term to study the effects and possibilities of nanotechnology on viral treatment?
Damian Reply
absolutely yes
Daniel
how to know photocatalytic properties of tio2 nanoparticles...what to do now
Akash Reply
it is a goid question and i want to know the answer as well
Maciej
characteristics of micro business
Abigail
for teaching engĺish at school how nano technology help us
Anassong
Do somebody tell me a best nano engineering book for beginners?
s. Reply
what is fullerene does it is used to make bukky balls
Devang Reply
are you nano engineer ?
s.
fullerene is a bucky ball aka Carbon 60 molecule. It was name by the architect Fuller. He design the geodesic dome. it resembles a soccer ball.
Tarell
what is the actual application of fullerenes nowadays?
Damian
That is a great question Damian. best way to answer that question is to Google it. there are hundreds of applications for buck minister fullerenes, from medical to aerospace. you can also find plenty of research papers that will give you great detail on the potential applications of fullerenes.
Tarell
what is the Synthesis, properties,and applications of carbon nano chemistry
Abhijith Reply
Mostly, they use nano carbon for electronics and for materials to be strengthened.
Virgil
is Bucky paper clear?
CYNTHIA
so some one know about replacing silicon atom with phosphorous in semiconductors device?
s. Reply
Yeah, it is a pain to say the least. You basically have to heat the substarte up to around 1000 degrees celcius then pass phosphene gas over top of it, which is explosive and toxic by the way, under very low pressure.
Harper
Do you know which machine is used to that process?
s.
how to fabricate graphene ink ?
SUYASH Reply
for screen printed electrodes ?
SUYASH
What is lattice structure?
s. Reply
of graphene you mean?
Ebrahim
or in general
Ebrahim
in general
s.
Graphene has a hexagonal structure
tahir
On having this app for quite a bit time, Haven't realised there's a chat room in it.
Cied
what is biological synthesis of nanoparticles
Sanket Reply
what's the easiest and fastest way to the synthesize AgNP?
Damian Reply
China
Cied
types of nano material
abeetha Reply
I start with an easy one. carbon nanotubes woven into a long filament like a string
Porter
many many of nanotubes
Porter
what is the k.e before it land
Yasmin
what is the function of carbon nanotubes?
Cesar
I'm interested in nanotube
Uday
what is nanomaterials​ and their applications of sensors.
Ramkumar Reply
what is nano technology
Sravani Reply
what is system testing?
AMJAD
preparation of nanomaterial
Victor Reply
how did you get the value of 2000N.What calculations are needed to arrive at it
Smarajit Reply
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Source:  OpenStax, Life skills grade 2. OpenStax CNX. Sep 21, 2009 Download for free at http://cnx.org/content/col11105/1.1
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