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Subject: Biology
Semester: 1
Period: 2
Week: 11
School Name:
Subject: Biology
Grade Level: Grade 10
Date: Week 11
Lesson Duration: 45 minutes
Week & Term: Week 11, Period 2
Topic: Unicellular Organisms
Sub-topic: Parasitic Protozoa – Entamoeba histolytica, Giardia lamblia, Plasmodium falciparum
Learning Objectives
By the end of the lesson, students should be able to:
- Name parasitic protozoa and the diseases they cause
- Describe symptoms and transmission of each disease
- Suggest treatment and prevention methods
Previous Knowledge
• Familiarity with malaria and basic protozoa
• Awareness of disease symptoms from prior lessons
Instructional Materials
• Charts showing affected body systems
• Images of protozoa under microscope (printed or projected)
• Disease comparison chart
• Student notebooks
Lesson Development – ABC Model
A – Anticipation (Warm-up / Starter)
Time: 5–10 mins
Ask: “What do all these diseases have in common: malaria, dysentery, and giardiasis?”
Let students guess the link—protozoa.
B – Building Knowledge (Main Lesson Body)
Time: 25–30 mins
Teacher explains:
- Entamoeba histolytica → Amebic dysentery (contaminated food/water)
- Giardia lamblia → Giardiasis (intestinal infection, often from dirty water)
- Plasmodium falciparum → Malaria (recap)
Symptoms: Diarrhea, stomach cramps, vomiting, dehydration, fever
Prevention: Good hygiene, clean water, food safety, mosquito control
Learners’ Activities (Expanded):
- Fill in a disease-organism-symptom chart
- Create posters promoting clean water practices
- Act out scenarios of unsafe vs. safe water use
- Discuss: “Why do these diseases spread faster in poor sanitation areas?”
Assessment Checks:
- Peer quiz on disease names and symptoms
- Group competition: match disease to organism fastest
- Teacher reviews notebooks
Notes (Expanded & Detailed):
- Parasitic protozoa are single-celled organisms that live in the human body, often in the intestines or blood.
- Transmission is often fecal-oral (via contaminated food/water).
- These diseases can spread rapidly where hygiene is poor.
- Most can be treated with drugs if diagnosed early.
C – Consolidation (Conclusion & Assessment)
Time: 5–10 mins
Teacher reviews each protozoan and its effect
Students are asked to summarize key points from the lesson
Evaluation Method (Expanded):
- Write short answers:
- Name 2 parasitic protozoa and the diseases they cause
- State 2 prevention tips for each
- List one symptom of giardiasis and dysentery
Assignment (Expanded):
- Prepare a table listing:
- Name of protozoan
- Disease caused
- Symptoms
- Prevention
- Then write 5 personal hygiene habits that can prevent such infections
Follow-up Activity:
- Students prepare for a sanitation awareness campaign next week
Differentiation / Inclusive Strategies
• Struggling Learners: Simplified charts with visuals
• Advanced Learners: Create parasite life cycles
• Students with Disabilities: Visual aids and verbal coaching
Teacher’s Reflection (After Class)
• What worked well?
• What needs improvement?
• Students’ engagement level: □ High □ Medium □ Low
• Next steps: Begin review and integration of Period 2 topics