Sources and Uses of Energy (Primary 4)

Last Updated on July 15, 2020 by Alabi M. S.

 

BASIC TECHNOLOGY

BASIC SCIENCE AND TECHNOLOGY

THIRD TERM  

PRIMARY 4 

WEEK 10

THEME – UNDERSTANDING BASIC TECHNOLOGY 

PREVIOUS LESSON –

TOPIC – MEANING AND FORMS OF ENERGY 

LEARNING AREA

1. Meaning of Energy

2. Forms of Energy

 

PERFORMANCE OBJECTIVES 

By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor) and should be able to –

1. state uses of energy.

2. identify different sources of energy.

 

ENTRY BEHAVIOUR

Heat from fire, sun, machine, etc. Light from sun, touch light, sound from radio, battery from many devices.

 

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. Relevant charts and pictures

2. Candle

3. Torch light

4. Gas

5. Oil

6. Charcoal

7. Kerosene

8. Solar panel in surrounding

9. Radio

 

 

METHOD OF TEACHING – Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons. 

 

REFERENCE MATERIALS

1. Scheme of Work

2. 9 – Years Basic Education Curriculum

3. Course Book

4. All Relevant Material

5. Online Information

Relevant link: Sources and Uses of Energy – ASEI PDSI METHOD (Primary 4 and 5)

 

CONTENT OF THE LESSON  

LESSON ONE – MEANING OF ENERGY 

Energy is the ability to do work or get work do.

Something only happens when energy is changed from one form into another form. This enables energy to be used to do work.

Energy is used to lift things, to heat up our food, give us light, power the car and generators etc. A machine is an energy changer. It changes one form of energy into another more useful form.

 

SOURCES OF ENERGY 

Form of energy              —            Sources of Energy

1. Mechanical energy — Human body, wind, tide.

2. Chemical energy — Food, batteries, kerosene, petrol, coal, etc.

 

 

3. Electrical energy — Electricity generators, batteries, Hydropower, Power generating plants.

4. Heat Energy — Sun, fire

5. Light Energy — Sun, torchlight, lamps

6. Solar Energy —  Sun

7 Sound Energy — Musical instruments, human voice, vehicles, etc.

 

Teacher’s activities – Engage pupils to identify the source of each form of energy. For example, what are the things that produce heat? Expected respond, fire, engine, sun, etc. Therefore, heat energy comes from….. 

 

USES OF ENERGY 

Energy is useful to mankind in many ways at home, schools and offices. Some of the uses of energy are presented below:

1. It is used for boiling water and cooking food.

For example, heat from boiling iron and stove.

2. It is a used for producing light.

For example, light from lamp, bulb, sun, television, etc.

3. It is used for entertainment, broadcast and education.

For example, sound from radio, television, musical instruments.

4. It is used for keeping (preserving) food and drink.

For example, heat from the sun, cold from refrigerator, etc.

5. It is used for storage food.

6. It is used for decoration and advertisement.

For example, light from the bulb.

7. It is used for power our electronics and machines.

For example, light from generator, batteries and chemical (fuel) in generators and batteries.

 

 

PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Leads pupils to perform some activities such as lifting different objects with different size.

Pupil’s Activities – Follow the teacher’s lead.

3. Guides pupils identify the energy used for lifting objects.

Pupil’s Activities – Pupils identify power as energy.

4. Asks pupils to say what they understand by energy.

Pupil’s Activities – Explain what is energy.

5. Lists types/forms of energy on the board.

Pupil’s Activities – Identify different types/forms of energy.

6. Discusses the forms of energy.

Pupil’s Activities – Participate actively class discussion.

 

CONCLUSION

  • To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson.
  • Next Lesson –

 

LESSON EVALUATION 

Pupils to:

1. state five (5) uses of energy. With examples.

2. mention five (5) sources of energy. Give at least 2 examples each.

 

 

 

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