Pathogens and Diseases: Meaning and Types of Pathogens, Meaning and Types of Diseases Primary 4 (Basic 4) Third Term Week 6 Physical and Health Education

PATHOGENS AND DISEASES: MEANING AND TYPES OF PATHOGENS, MEANING AND TYPES OF DISEASES 

PHYSICAL AND HEALTH EDUCATION (PHE)

PRIMARY 4 – THIRD TERM – WEEK 6

THEME – HEALTH EDUCATION (PATHOGENS AND DISEASES) 

PREVIOUS LESSON – Swimming: Meaning and Types of Swimming Strokes, and Safety Rules for Swimming Primary 4 (Basic 4) Third Term Week 5 Physical and Health Education

TOPIC – PATHOGENS AND DISEASES 

LEARNING AREA

1. Introduction

2. Meaning and Types of Pathogens

3. Meaning and Types of Diseases

4. Weekly Assessment: Test Questions and Answers/Assignment

5. Summary

LEARNING OBJECTIVES 

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

1. Define pathogens.

2. Mention the common types of pathogens.

3. Define diseases.

4. Mention the common types of diseases.

5. Explain how pathogens cause diseases.

ENTRY BEHAVIOUR

Pupils have previously learned about personal hygiene, safety rules, healthy living, and swimming safety, which help to keep the body healthy and prevent illness.

This lesson builds on that knowledge by introducing pathogens, the tiny organisms that cause diseases, and explaining the different types of diseases and how good hygiene and healthy habits help to prevent them.

INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of:

1. Charts showing different pathogens

2. Pictures of healthy and sick people

3. Flashcards

4. Whiteboard and marker

5. Charts showing types of diseases

6. Relevant videos (optional)

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

CONTENT OF THE LESSON

INTRODUCTION

Sometimes people become sick because tiny living organisms enter their bodies. These tiny organisms are called pathogens. Pathogens can cause different kinds of diseases if they enter the body.

In this lesson, pupils will learn the meaning and types of pathogens, the meaning and types of diseases, and the importance of preventing diseases through good hygiene and healthy habits.

LESSON 1 – MEANING OF PATHOGENS

Pathogens are tiny living organisms (germs) that enter the body and cause diseases.

TYPES OF PATHOGENS

1. Bacteria – Bacteria are tiny living organisms that can cause diseases such as cholera and typhoid.

2. Viruses – Viruses are very tiny germs that cause diseases such as measles, influenza (flu), and the common cold.

3. Fungi – Fungi are germs that cause infections such as ringworm and athlete’s foot.

4. Protozoa – Protozoa are tiny organisms that can cause diseases such as malaria.

LESSON 2 – MEANING OF DISEASES

Diseases are conditions that make the body unhealthy and stop it from working properly.

TYPES OF DISEASES

1. Communicable Diseases

Communicable diseases are diseases that can spread from one person to another through contact, air, water, food, or insects.

Examples:

• Measles

• Cholera

• Tuberculosis

• Chickenpox

• Common cold

2. Non-Communicable Diseases

Non-communicable diseases are diseases that do not spread from one person to another.

Examples:

• Diabetes

• Asthma

• High blood pressure

• Cancer

• Sickle cell disorder

LESSON 3 – IMPORTANCE OF KNOWING ABOUT PATHOGENS AND DISEASES

1. It helps us prevent diseases.

2. It encourages good personal hygiene.

3. It promotes healthy living.

4. It reduces the spread of infections.

5. It helps us know when to seek medical care.

WEEKLY ASSESSMENT: TEST QUESTIONS AND ANSWERS/ASSIGNMENT 

A. Multiple Choice Questions

1. Pathogens are ______.

A. healthy foods

B. medicines

C. body organs

D. tiny living organisms that cause diseases

2. Which of the following is a type of pathogen?

A. Vitamin

B. Bacteria

C. Water

D. Bone

3. Which pathogen causes malaria?

A. Virus

B. Fungus

C. Protozoa

D. Bacteria

4. A disease that spreads from one person to another is called a ______.

A. non-communicable disease

B. communicable disease

C. body injury

D. communicable disease

5. Which of the following is a non-communicable disease?

A. Cholera

B. Measles

C. Diabetes

D. Tuberculosis

B. Fill in the Blanks

6. Tiny living organisms that cause diseases are called ______.

7. ______ are germs that cause diseases such as measles and influenza.

8. Diseases that can spread from one person to another are called ______ diseases.

9. Diseases that do not spread from one person to another are called ______ diseases.

10. ______ are germs that cause infections such as ringworm.

C. True or False

11. Diseases can cause pathogens. ______

12. Malaria is caused by protozoa. ______

13. Diabetes is a communicable disease. ______

14. Ringworm is caused by fungi. ______

15. Good personal hygiene helps to prevent diseases. ______

D. Match Column A with Column B

Column A – Column B

16. Bacteria – A. Can spread from one person to another

17. Virus – B. Causes measles

18. Fungi – C. Causes ringworm

19. Protozoa – D. Causes cholera

20. Communicable disease – E. Causes malaria

ANSWER KEYS 

1. D – Tiny living organisms that cause diseases

2. B – Bacteria

3. C – Protozoa

4. A – Communicable disease

5. C – Diabetes

6. Pathogens

7. Viruses

8. Communicable

9. Non-communicable

10. Fungi

11. False

12. True

13. False

14. True

15. True

16. D – Bacteria → Causes cholera

17. B – Virus → Causes measles

18. C – Fungi → Causes ringworm

19. E – Protozoa → Causes malaria

20. A – Communicable disease → Can spread from one person to another

SUMMARY

In this lesson, pupils learned that pathogens are tiny living organisms (germs) that enter the body and cause diseases.

They also learned the four main types of pathogens, which are:

• Bacteria

• Viruses

• Fungi

• Protozoa

Pupils learned that a disease is a condition that makes the body unhealthy and prevents it from working properly.

They also learned the two main types of diseases:

• Communicable diseases, which can spread from one person to another.

• Non-communicable diseases, which cannot spread from one person to another.

Finally, pupils understood that good personal hygiene, proper sanitation, healthy eating, and seeking medical care when necessary help to prevent diseases and keep the body healthy.

PRESENTATION

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

Step 1: Introduction – The teacher asks pupils to mention some common illnesses they know and discusses what may cause people to become sick.

Pupils’ Activities: Pupils mention common illnesses and share their ideas about what causes them.

Step 2: Meaning of Pathogens – The teacher explains the meaning of pathogens and describes them as tiny living organisms (germs) that cause diseases.

Pupils’ Activities: Pupils explain the meaning of pathogens in their own words.

Step 3: Types of Pathogens – The teacher explains the four main types of pathogens:

• Bacteria

• Viruses

• Fungi

• Protozoa

Pupils’ Activities: Pupils identify and mention the different types of pathogens.

Step 4: Meaning of Diseases – The teacher explains the meaning of diseases and how pathogens can make the body unhealthy.

Pupils’ Activities: Pupils explain the meaning of diseases.

Step 5: Types of Diseases – The teacher explains the two main types of diseases:

• Communicable diseases

• Non-communicable diseases

The teacher gives examples of each type.

Pupils’ Activities: Pupils classify diseases as communicable or non-communicable.

Step 6: Prevention of Diseases – The teacher discusses simple ways to prevent diseases, such as practising good personal hygiene, washing hands regularly, eating healthy food, and keeping the environment clean.

Pupils’ Activities: Pupils mention ways to prevent diseases.

Step 7: Lesson Summary – The teacher reviews the meaning and types of pathogens, the meaning and types of diseases, and the importance of disease prevention.

Pupils’ Activities: Pupils summarize the lesson by answering oral questions.

Step 8: Evaluation – The teacher asks oral and written questions and assesses pupils’ understanding of pathogens and diseases.

Pupils’ Activities: Pupils answer the questions and participate actively in the lesson evaluation.

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

Primary 4 – First Term Examination for Physical and Health Education (PHE) Mid Term Questions and Answers

Spread of Diseases: Ways Diseases Are Spread with Specific Examples and Symptoms Primary 4 (Basic 4) Third Term Week 8 Physical and Health Education

LESSON EVALUATION 

Teacher asks pupils,

1. What are pathogens?

2. Mention four types of pathogens.

3. What is a disease?

4. Mention the two main types of diseases.

5. State three examples of communicable diseases.

6. State three examples of non-communicable diseases.

7. Which type of pathogen causes malaria?

8. Which type of pathogen causes ringworm?

9. Mention five ways to prevent diseases.

10. Explain the difference between communicable diseases and non-communicable diseases.