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Technology

Grade 5

Machines made easy

Module 3

Let’s make a puppet

  1. APPLICATION
  2. Try to open the lid of a tin of paint. Is it easier to use a short or a long screwdriver? Explain.
  3. Where on a see-saw is the best place for a heavy person to balance a light person sitting at the other end? Why?
  4. A person’s arms and legs are also levers. Do you agree? Give reasons for your answer.

[LO 3.2]

B. RESEARCH.

Assignment

  1. Make a poster on an A4 sheet of paper with pictures and/or sketches of the different levers. Add the necessary captions (burden, load, pivot).
  2. What sources did you consult? (Copy the table and make a cross in the appropriate square.)
Newspapers ο Pamphlets ο
Magazines ο Experts ο
Subject literature ο Photos ο
Computer ο Sports picture books ο

[LO 1.3]

C. manufacturing – planning

Problem : Your teacher found this pattern (Appendix 1 on page 19) for a dancing clown in a magazine, but cannot find the instructions. He/she wants you to design your own clown. Can you help him/her?

  1. What material will you use to make the pattern? (Copy the table and make a cross in the appropriate square.)
Cardboard ο Clay ο
Fabric ο Glass ο
Plastic ο Wood ο
Metal ο Thick paper ο

Give reasons for your choices. Write out the sentences, completing each of them as follows:

I use this material because ___

  1. Which tools are you going to use to make the puppet? (Copy the table and make a cross in the appropriate square.)
Coloured pencils ο Scissors ο Paper punch ο
Paint ο Glue (Pritt) ο String ο
Pastels ο Bostik ο Fishing line ο
Koki’s ο Pencil ο Wool ο
Charcoal ο Tracing paper ο Beads ο
Paper punch ο Stapler ο Staples ο
Paper clips ο Split pins ο

Explain the use of each instrument. Copy and complete as follows:

I use __ to __

[LO 1.8]

You have two hours to complete this assignment. Set out your steps clearly, and indicate the time you require. Copy and complete the following table:

STEPS TIME
1.
2.
3.
4.
5.
6.
Date for handing in: 120 min

Now make your dancing clown.

[LO 1.7]

  1. EVALUATION (Self-assessment)

Evaluate yourself. Be honest. Write Yes, Unsure or No next to the respective numbers after you have completed your dancing clown.

  1. Did you know what to do?
  1. Did I complete the task without any help?
  1. Did I work thoroughly?
  1. Did I work in logical sequence?
  1. Did I work neatly?
  1. Did I use materials sparingly?
  1. Am I proud of my model?
  1. Did I enjoy making the model?
  1. Did I bring all my material and tools every time?
  1. Did I tidy up properly afterwards?
  1. Did I complete my model?
  1. Is my clown colourful, attractive and does it work properly?
  1. Did I learn something new?

COMPLETE THE FOLLOWING QUESTIONS

  1. This assignment involved (levers/gears/wheels and axles). Copy the sentence and underline the correct answer.
  2. Did you have any problems while making the clown, and if so, how did you solve them? Write down three.
  3. Would you work in exactly the same way if you had to attempt such a project again? If your answer is no , explain.

[LO 1.11]

  1. Ask at least five friends to write their comments (next to their names) on your model below.

[LO 1.10]

  1. EXHIBITION

Assignment

Decide as a class which five learners’ clowns are the best and show them to other classes and to the principal. Someone might want to buy them!

Appendix 1

Assessment

LO 1

TECHNOLOGICAL PROCESSES AND SKILLS

The learner will be able to apply technological processes and skills ethically and responsibly, using appropriate information and communication technologies.

We know this when the learner:

Investigates:

1.2 finds out about existing products relevant to a problem, need or opportunity, and identifies some design aspects (e.g. who it is for, what it looks like, what it is for, what it is made of);

  • performs, where appropriate, scientific investigations about concepts relevant to a problem, need or opportunity using science process skills:

1.3.1 planning investigations;

  • conducting investigations;

1.3.3 processing and interpreting data;

1.3.4 evaluating and communicating findings.

Makes:

1.7 outlines a plan that shows the steps for making, including drawings or sketches of main parts;

1.8 uses suitable tools and materials to make products by measuring out, cutting or separating, shaping or forming, joining or combining, and finishing the chosen material;

Evaluates:

1.10 evaluates, with assistance, the product according to the design brief and given specifications and constraints (e.g. people, purpose, environment), and suggests improvements and modifications if necessary;

1.11 evaluates the plan of action followed and suggests improvements and modifications if necessary;

Communicates:

  • produces labelled two-dimensional drawings enhanced with colour where appropriate.

LO 2

TECHNOLOGICAL KNOWLEDGE AND UNDERSTANDING

The learner will be able to understand and apply relevant technological knowledge ethically and responsibly.

We know this when the learner:

Systems and control:

  • demonstrates knowledge and understanding of how to use energy sources to power mechanical systems in order to make a product move in some way.

We know this when the learner:

3.1 recognises how products and technologies have been adapted from other times and cultures;

3.2 identifies possible positive and negative effects of scientific developments or technological products on the quality of people’s lives and/or the health environment.

Memorandum

(A)

1. A longer screwdriver provides a more efficient lever. The longer the lever, the bigger the force applied on the load.

2. The heavier person should sit as close to the fulcrum as possible so that the load will not be too heavy.

3. Yes. Little children love to do “horse riding” on an adult’s foot. The person’s leg rotates round a fulcrum (knee, hip) and this creates enough force to control the load.

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, Technology grade 5. OpenStax CNX. Sep 23, 2009 Download for free at http://cnx.org/content/col10979/1.2
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