Health Science

Grade 4 · General Science

Semester 2 | Period 5 | Week 27

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Subject: General Science

Semester: 2

Period: 5

Week: 27


School Name:
Teacher’s Name:
Subject: General science
Grade Level: Grade 4
Date: Week 27
Lesson Duration: 45 minutes
Week & Period: Week 27, Period 5
Topic: Health Science
Sub-topic: Malaria – Introduction and Transmission

Learning Objectives
By the end of the lesson, students should be able to:
Describe how malaria gets to humans and state how it is transmitted

Previous Knowledge
Students already know that mosquitoes can cause illness

Instructional Materials
Charts of malaria parasite life cycle, mosquito models, videos

Lesson Development – ABC Model
A – Anticipation (Warm-up / Starter)
Time: 5–10 minutes
Teacher asks: “How do people get sick from mosquito bites?” Learners share ideas. Teacher introduces malaria parasite and transmission.

B – Building Knowledge (Main Lesson Body)
Time: 25–30 minutes
Learners’ Activities (Expanded):

  • Learners observe diagrams, charts, and videos showing the life cycle of the malaria parasite and its transmission through Anopheles mosquitoes.
  • Learners discuss in pairs how the parasite enters the human body during a mosquito bite.
  • Learners identify common symptoms of malaria, such as fever, chills, headache, fatigue, and body aches.
  • Learners participate in a role-play activity, simulating how mosquitoes transmit malaria from one person to another, emphasizing prevention awareness.
  • Learners brainstorm in groups ways malaria spreads in their environment, e.g., stagnant water, uncovered containers, or dense vegetation.
  • Learners share experiences or knowledge about family or community measures against malaria.

Assessment Checks:

  • Teacher asks: “Which mosquito transmits malaria?” (Expected answer: Female Anopheles mosquito)
  • Teacher asks: “Name three common symptoms of malaria.” (Expected answer: Fever, chills, body aches)
  • Teacher observes learners’ participation in role-play and group discussions to ensure understanding.

Notes (Expanded & Detailed):

  • Malaria: A disease caused by Plasmodium parasites, transmitted through bites of infected female Anopheles mosquitoes.
  • Transmission: When the mosquito bites a human, the parasite enters the bloodstream and multiplies, causing illness.
  • Symptoms: Fever, chills, headache, fatigue, muscle aches, nausea, and sometimes vomiting.
  • Key points for learners:
    • Only female Anopheles mosquitoes transmit malaria.
    • Malaria can be severe if not treated promptly.
    • Early recognition of symptoms helps prevent complications.
  • Practical link: Understanding transmission encourages learners to take personal and community preventive measures.

Assignment/Homework:

  1. Draw the life cycle of malaria transmission using a simple diagram showing mosquito and human stages.
  2. List five ways malaria can spread in the environment.
  3. Discuss with family members or neighbors how they prevent mosquito bites and record three preventive actions.

C – Consolidation (Conclusion & Assessment)
Time: 5–10 minutes
Summary: Teacher reviews malaria transmission and key symptoms.

Evaluation Method (Expanded):
Exit slip/quiz: Learners state one way malaria is transmitted.

Assignment (Expanded):
Draw and label malaria transmission cycle.

Follow-up Activity:
Observe the environment and identify potential mosquito breeding sites.

Differentiation / Inclusive Strategies
Charts and videos for visual learners, group discussion, challenge learners to explain transmission in their own words.

Teacher’s Reflection (After Class)
What worked well? ___________________________________________
What needs improvement? ____________________________________
Students’ engagement level: ☑ High ☑ Medium ☑ Low