Class: Junior Secondary School 3 (JSS3, JSS 3)
Term: 1st Term
Week: 5
Age: 14 years
Duration: 45 minutes
Subject: Basic Science And Technology
Curriculum Theme: Physical And Health Education
Previous Lesson: Facilities and Equipment Used in Hockey Game
Topic: Communicable Diseases And Pathogens
Subject Matter: Nature of communicable diseases: measles, mumps, pneumonia, etc. Mode of transmission of the diseases, Factors and causative agents.

Specific Objectives

By the end of the lesson, pupils should be able to:

Cognitive Domain:
(a) Describe the nature of communicable diseases such as measles, mumps, and pneumonia.
(b) Identify the causative agents of common communicable diseases.
(c) Explain the mode of transmission of selected communicable diseases.
Affective Domain:
(a) Appreciate the importance of good hygiene and preventive measures against communicable diseases.
(b) Demonstrate concern for others by encouraging healthy living practices.
Psychomotor Domain:
(a) Demonstrate proper hygiene practices that help prevent communicable diseases.
(b) Identify images or charts showing disease-causing organisms and transmission routes.
Social Domain:
(a) Participate cooperatively in group discussions about disease prevention and health promotion.

Reference Materials

The following resources was used in planning this lesson:

9 Years Basic Education Curriculum
Lagos State Unified Scheme of Work for Junior Secondary Schools
Physiopedia – Communicable Diseases
Relevant Textbooks

Instructional Materials

The teacher will teach this lesson with the aid of:

Charts showing pathogens (bacteria, viruses, fungi, protozoa)
Flashcards with names and pictures of diseases
Samples or models of protective materials (face masks, hand sanitizers, gloves)
Diagrams showing modes of disease transmission
Whiteboard and markers

Rationale for the Lesson

This lesson helps students understand how communicable diseases spread, their causes, and ways to prevent them, promoting healthier habits and awareness in their communities.

Prerequisite/Previous Knowledge

Pupils already have basic knowledge of health and hygiene practices, as well as an introduction to the concept of diseases and their general effects on the body.

Lesson Content/Board Summary

Communicable Diseases and Pathogens

Communicable diseases are illnesses that can spread from one person, animal, or object to another. They are caused by microorganisms called pathogens such as bacteria, viruses, fungi, and protozoa.

The following are examples of common communicable diseases:

Measles
Mumps
Pneumonia
Tuberculosis
Influenza
Cholera

Causative Agents of Communicable Diseases

Causative agents are microorganisms responsible for causing diseases. Each disease has a specific pathogen that infects the body and multiplies.

The following are examples of diseases and their causative agents:

Measles – Caused by a virus.
Mumps – Caused by a virus.
Pneumonia – Caused by bacteria or viruses.
Cholera – Caused by Vibrio cholerae (a bacterium).
Tuberculosis – Caused by Mycobacterium tuberculosis (a bacterium).
Ringworm – Caused by fungi.

Mode of Transmission of Communicable Diseases

Communicable diseases spread from infected persons or contaminated sources to others through various ways.

These include:

Airborne Transmission: Through sneezing, coughing, or talking (e.g., measles, tuberculosis).
Direct Contact: Through touching, kissing, or body fluids (e.g., mumps, ringworm).
Contaminated Food and Water: Through consumption of dirty food or water (e.g., cholera, typhoid).
Vector Transmission: Through bites from insects like mosquitoes or flies (e.g., malaria, sleeping sickness).
Poor Sanitation: Through improper waste disposal or unclean surroundings.

Factors that Promote the Spread of Communicable Diseases

The spread of communicable diseases is encouraged by certain conditions and habits in the environment.

The following are factors that promote the spread:

Poor personal and environmental hygiene.
Overcrowded living conditions.
Inadequate waste disposal.
Lack of vaccination and medical care.
Contaminated water and food sources.
Ignorance of disease prevention methods.

Teaching Methods/Instructional Techniques:

Discussion, Lecture, Explanation, Demonstration, Question and Answer, Group Work, Visual Aids

Instructional Procedures

To deliver this lesson, the teacher will adopt the following steps:

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher asks pupils if they know any diseases that can spread from one person to another and shows pictures of sick individuals.
Pupils’ Activity: Pupils respond and share examples of such diseases.
Learning Point: Pupils are introduced to the topic of communicable diseases and their spread.

Step 2: Nature of Communicable Diseases

Time: 10 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher explains what communicable diseases are and gives examples.
Pupils’ Activity: Pupils listen, take notes, and mention more examples.
Learning Point: Pupils understand the nature and examples of communicable diseases.

Step 3: Causative Agents and Mode of Transmission

Time: 10 minutes
Teaching Skill: Discussion
Teacher’s Activity: The teacher explains the different pathogens and how diseases are transmitted, using charts and illustrations.
Pupils’ Activity: Pupils identify examples and describe how diseases spread.
Learning Point: Pupils learn the different causative agents and how they transmit diseases.

Step 4: Factors that Promote Disease Spread

Time: 10 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher discusses factors that contribute to the spread of diseases and shows preventive measures.
Pupils’ Activity: Pupils suggest ways to prevent the spread.
Learning Point: Pupils understand the factors and how to prevent disease spread.

Step 5: Note-Taking

Time: 5 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher dictates or writes the board summary for pupils to copy.
Pupils’ Activity: Pupils copy notes neatly.
Learning Point: Pupils have written records of the key points learned.

Step 6: Evaluation/Review

Time: 3 minutes
Teaching Skill: Questioning
Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

What are communicable diseases?
Mention three examples of communicable diseases.
State the causative agent of measles and pneumonia.
List three ways communicable diseases are transmitted.
Mention two factors that promote disease spread.
Pupils’ Activity: Pupils respond orally and in writing.
Learning Point: Pupils demonstrate understanding of the lesson.

Step 7: Conclusion

Time: 2 minutes
Teaching Skill: Reinforcement
Teacher’s Activity: The teacher summarizes the lesson, reinforces preventive habits, and encourages pupils to maintain cleanliness and vaccination.
Pupils’ Activity: Pupils listen and ask questions.
Learning Point: Pupils appreciate the importance of preventing communicable diseases.

Lesson Keywords

Communicable – able to be transmitted from one person to another
Pathogen – a microorganism that causes disease
Transmission – the way a disease spreads
Vector – an organism that carries and transmits disease-causing microbes
Hygiene – cleanliness that helps prevent illness

Differentiation

Provide extra visual aids and real-life examples for slower learners, while advanced learners can research additional diseases and present findings in groups.

Note for teachers using this lesson plan

Emphasize preventive health practices such as hand washing, vaccination, and sanitation. Encourage class participation and ensure all demonstrations are safely carried out.