Air Pollution (Primary 4)

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

 

BASIC SCIENCE 

FIRST TERM

FIRST WEEK

BASIC 4

THEME: ENVIRONMENTAL CHANGES 

TOPIC: Air Pollution

Air pollution is the release of harmful substances into the air.

PERFORMANCE OBJECTIVES

  • By the end of the lesson, the pupils should have attained the following objectives (cognitive, affective and psychomotor) and be able to:
  1. define pollution and list some air pollutants;
  2. list common sources of air pollution;
  3. describe the consequences of air pollution on the people and on the environment; [click]
  4. describe the roles of the communities, industries and oil exploration in air  pollution;
  5. suggest ways of reducing the risks of pollution.

ENTRY BEHAVIOR

The pupils are required to already have learned water pollution.

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

  1. Photographs, Charts and Pictures on erosion.
  2. Hoe, Cutlasses
  3. Shovel and spade
  4. Tree seedlings. [click]
  5. Grass, etc.
  6. Photographs and charts showing polluted water, industries letting, fumes into the air.
  7. Posters/ photographs showing areas affected by oil spillage.

METHOD OF TEACHING

  1. Explanation
  2. Discussion
  3. Demonstration
  4. Questions and answers

REFERENCE MATERIALS

  1. Scheme of Work
  2. 9 – Years Basic Education Curriculum
  3. Course Book
  4. All Relevant Material
  5. Online Information [click]

CONTENT OF THE LESSON

AIR POLLUTION 

Air pollution occurs when harmful substances are released into the air in form of gasses.

CAUSES OF AIR POLLUTION 

  1. Emission from vehicles and industries.
  2. Presence of particulate matter
  3. Presence of poisonous gases
  4. Deforestation
  5. Agricultural activities
  6. Burning of fossil fuels
  7. Dust and dirt
  8. Household pollution
  9. Pollution from natural events – dust storm, volcanic eruption.

EFFECTS OF AIR POLLUTION 

  1. Acid Rain
  2. Depletion of Ozone Layer
  3. Global warming
  4. Respiratory and heart problems
  5. Affect on wildlife [click]

PREVENTION OF AIR POLLUTION 

  1. Conserve energy – turn off all electronics devices when not in use.
  2. Use low energy bulbs
  3. Plant trees
  4. Choose sustainable products
  5. Renewable sources of energy
  6. Take a good care of your fireplace
  7. Raising awareness
  8. Laws and regulations

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. Shows pictures of polluted air;
  3. Pupil’s Activities – Look at pictures of polluted air and describe what they observe.
  4. Arranges for pupils to visit industrial areas and observe the emission of gases into the air; the release of effluent waste into the air, etc.
  5. Guides pupils’ discussion on the various ways the community, industries etc pollute air; [click]
  6. Pupil’s Activities – Visit industrial areas to observe ways industries pollute air.
  7. Guides discussion on measures of controlling.
  8. Pupil’s Activities – Participate in the discussion.
  9. Summarize the lesson;
  10. Pupil’s Activities – Note taking.

CONCLUSION

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

LESSON EVALUATION

Pupils to:

  1. describe pollution and list five air pollutants respectively;
  2. identify three sources of air pollution respectively
  3. state three consequences each of air pollution on people and the environment;
  4. suggest three ways of controlling or reducing the risks of air pollution.

 

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