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Technology

Grade 4

Create your own breakfast cereal

Module 5

Another problem and solution

THE PROBLEM AND THE SOLUTION

Activity 1

To investigate the effect of a problem on people [lo 1.1, 3.1, 3.2, 3.3]

The cause of a problematic solution

Read the comic strip and discuss the situation that is depicted

What is the problem? Write these words in the correct order to find out.

breakfast eat healthy He not cereal for does

They ………………………………………………………………………………

…………………………………………………………………………………….

Discuss these questions in class:

  • Why do some people suffer from starvation?
  • What disadvantage s are caused by the problem?
  • What kind of food do different cultures serve for breakfast?

Activity 2

To execute a design [lo 1.4]

A suggestion on how to solve their problem.

Design ……………………………………………………………….( what ) for

………………………………………………………………………….( whom ) to

eat healthier ……………………………………………………………( when ) at

………………………………………………………………..( where ).

Activity 3

To analyse different kinds of packaging [lo 1.2]

Collect many kinds of cereal and porridge containers in various shapes and sizes. Draw any three kinds of porridge or cereal of your choice.

Activity 4

To submit suggestions for new packaging [lo 1.5, 1.6]

These questions will help you to choose the best packaging:

  • Which kind of container do you like most/least? Why?
  • Which kind of porridge or cereal do you like most/least? Why?
  • What influence do colours, style of lettering and pictures have on your choice?
  • Who are you going to design the porridge or cereal for?
  • What kind of porridge or cereal are you going to make?
  • Why do you make this porridge or cereal?

YOUR CHOICE

Assessment

Learning outcome 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.

Assessment standard

We know this when the learner:

1.1 finds out, with assistance, about the background context (e.g. people, environment) when given a problem, need or opportunity;

1.2 finds out about existing products relevant to a problem, need or opportunity, and identifies the main design aspect (e.g. who it is for, what is it for, what it looks like) that make them suitable as a solution;

1.4 writes or communicates, with assistance, a short and clear statement (design brief) for the development of a product for a given purpose;

1.5 suggests and records at least two possible solutions to the problem or need that link to the design brief and to given specifications or constraints (e.g. people, purpose, environment);

1.6 chooses one of these solutions, giving reasons for the choice.

Learning outcome 3: technology, society and the environment

The learner will be able to demonstrate an understanding of the interrelationships between science, technology, society and the environment.

Assessment standard

We know this when the learner:

3.1 describes how local indigenous cultures have used scientific principles or technological products for specific purposes;

3.2 expresses opinions about how technological products make people’s lives easier;

3.3 expresses reasons why certain groups of people might be disadvantaged when using technological products.

Questions & Answers

Three charges q_{1}=+3\mu C, q_{2}=+6\mu C and q_{3}=+8\mu C are located at (2,0)m (0,0)m and (0,3) coordinates respectively. Find the magnitude and direction acted upon q_{2} by the two other charges.Draw the correct graphical illustration of the problem above showing the direction of all forces.
Kate Reply
To solve this problem, we need to first find the net force acting on charge q_{2}. The magnitude of the force exerted by q_{1} on q_{2} is given by F=\frac{kq_{1}q_{2}}{r^{2}} where k is the Coulomb constant, q_{1} and q_{2} are the charges of the particles, and r is the distance between them.
Muhammed
What is the direction and net electric force on q_{1}= 5µC located at (0,4)r due to charges q_{2}=7mu located at (0,0)m and q_{3}=3\mu C located at (4,0)m?
Kate Reply
what is the change in momentum of a body?
Eunice Reply
what is a capacitor?
Raymond Reply
Capacitor is a separation of opposite charges using an insulator of very small dimension between them. Capacitor is used for allowing an AC (alternating current) to pass while a DC (direct current) is blocked.
Gautam
A motor travelling at 72km/m on sighting a stop sign applying the breaks such that under constant deaccelerate in the meters of 50 metres what is the magnitude of the accelerate
Maria Reply
please solve
Sharon
8m/s²
Aishat
What is Thermodynamics
Muordit
velocity can be 72 km/h in question. 72 km/h=20 m/s, v^2=2.a.x , 20^2=2.a.50, a=4 m/s^2.
Mehmet
A boat travels due east at a speed of 40meter per seconds across a river flowing due south at 30meter per seconds. what is the resultant speed of the boat
Saheed Reply
50 m/s due south east
Someone
which has a higher temperature, 1cup of boiling water or 1teapot of boiling water which can transfer more heat 1cup of boiling water or 1 teapot of boiling water explain your . answer
Ramon Reply
I believe temperature being an intensive property does not change for any amount of boiling water whereas heat being an extensive property changes with amount/size of the system.
Someone
Scratch that
Someone
temperature for any amount of water to boil at ntp is 100⁰C (it is a state function and and intensive property) and it depends both will give same amount of heat because the surface available for heat transfer is greater in case of the kettle as well as the heat stored in it but if you talk.....
Someone
about the amount of heat stored in the system then in that case since the mass of water in the kettle is greater so more energy is required to raise the temperature b/c more molecules of water are present in the kettle
Someone
definitely of physics
Haryormhidey Reply
how many start and codon
Esrael Reply
what is field
Felix Reply
physics, biology and chemistry this is my Field
ALIYU
field is a region of space under the influence of some physical properties
Collete
what is ogarnic chemistry
WISDOM Reply
determine the slope giving that 3y+ 2x-14=0
WISDOM
Another formula for Acceleration
Belty Reply
a=v/t. a=f/m a
IHUMA
innocent
Adah
pratica A on solution of hydro chloric acid,B is a solution containing 0.5000 mole ofsodium chlorid per dm³,put A in the burret and titrate 20.00 or 25.00cm³ portion of B using melting orange as the indicator. record the deside of your burret tabulate the burret reading and calculate the average volume of acid used?
Nassze Reply
how do lnternal energy measures
Esrael
Two bodies attract each other electrically. Do they both have to be charged? Answer the same question if the bodies repel one another.
JALLAH Reply
No. According to Isac Newtons law. this two bodies maybe you and the wall beside you. Attracting depends on the mass och each body and distance between them.
Dlovan
Are you really asking if two bodies have to be charged to be influenced by Coulombs Law?
Robert
like charges repel while unlike charges atttact
Raymond
What is specific heat capacity
Destiny Reply
Specific heat capacity is a measure of the amount of energy required to raise the temperature of a substance by one degree Celsius (or Kelvin). It is measured in Joules per kilogram per degree Celsius (J/kg°C).
AI-Robot
specific heat capacity is the amount of energy needed to raise the temperature of a substance by one degree Celsius or kelvin
ROKEEB
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Source:  OpenStax, Technology grade 4. OpenStax CNX. Sep 18, 2009 Download for free at http://cnx.org/content/col11099/1.1
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