New trends in physics teaching, v.4; The ... - unesdoc - Unesco

Qatar
5.
6.
7. Coal and oil are the most important sources of energy.
8.
Energy can be transformed from one form to another.
We can use energy transformation for our benefit:
at home, in industry and in transport.
Electrical energy, a clean and transportable form of energy:
how to produce or generate it.
9. Energy causes changes in matter (e.g. expansion).
10. Solar energy is the origin of all natural forms of energy known.
(grade 4)
(grade 5)
(grade 5)
(grade 6)
(grade 6)
(grade 6)
An example : Module 5 : ‘Energy Transformations’
Objectives:
(a)
Cognitive.
By the end of this module students can:- form the concept that energy can be transformed
from one form to all other known forms, through such subconcepts as: Electrical
energy can be transformed to mechanical energy (motion), heat, light, sound, magnetic
and chemical energy.
(b) Psychomotor (mental and manipulative skills).
1. connect an electric circuit following a circuit diagram.
2. make up simple apparatus from its components.
3. handle materials carefully.
4. make a thorough observation and report it both orally and in writing.
(c) Affective.
Appreciation of the role of science in enriching our life and making things easier as in the
case of the invention of accumulators, dynamos, heaters, etc.
Activity No. 1
Objective: To examine one device for the transfer of electrical energy into heat and light.
Materials needed: An office fluorescent lamp, a heating coil, both working off batteries (for
demonstration).
Suggested approach:
1. Show the equipment to your students and let them examine it for some time to recognize
what it is and what each item is used for.
2. Open the container of the batteries at the bottom of the office lamp and let one of the
students take them out, distribute them for examination and recognition. What are these things
called, and what are they used for?
3. Ask the children the following question:
Do we have to put the batteries in their container in any particular way? And why?
Let them examine both the batteries and the container to discover the answer, then let them
try to put them in correctly and put the light on.
4. What is the function of the fluorescent lamp?
Discuss the question with the children to help them express the idea in scientific language.
99