• Class: Primary 3
  • Term: 3rd Term
  • Week: 5
  • Age: 9 years
  • Duration: 40 minutes
  • Subject: Basic Science and Technology
  • Curriculum Theme: Basic Science
  • Previous Lesson: Dangers Of Taking Harmful Drugs
  • Topic: Contaminated Water

Performance Objectives:

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

  • Cognitive Domain: Define contaminated water and list five types.
  • Affective Domain: Express concern about the dangers of taking contaminated water.
  • Psychomotor Domain: Identify substances that contaminate water through visual aids.
  • Social Domain: Discuss ways to prevent water contamination in their community.

Reference Materials:

The following resources were used in planning this lesson:

  • 9 – Years Basic Education Curriculum
  • Abuja Educational Resource Centre Scheme of Work
  • NAPPS National Unified Scheme of Work
  • Online Information from NRDC
  • Relevant Textbooks

Instructional Materials:

The teacher will teach this lesson with the aid of:

  • Diagrams and pictures showing types of contaminated water
  • Samples of clean and contaminated water (simulated for safety)
  • Flashcards with key terms and definitions
  • A chart showing the dangers of contaminated water

Rationale for the Lesson:

Understanding the topic of contaminated water is crucial for maintaining good health. This knowledge helps pupils recognize the importance of clean water and how to avoid health hazards associated with contaminated water.

Prerequisite/Previous Knowledge:

Pupils are expected to have basic knowledge of water as a resource and its uses, including awareness of the need to avoid harmful substances.


Learning Area: Contaminated Water

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

Content DevelopmentTimeTeaching MethodTeaching StrategyTeachers ActivityPupils ActivityLearning Point
Step 1: Introduction 5 minutesDiscussionUse questioning to activate prior knowledgeAsk pupils what they know about clean and dirty water.Respond with examples of clean and dirty water.Activate prior knowledge about water quality.
Step 2: Definition5 minutesDirect InstructionUse flashcardsShow flashcards with the definition of contaminated water.Listen and take notes.Understand the definition of contaminated water.
Step 3: Types of Contaminated Water10 minutesDemonstrationUse diagrams and picturesShow different types of contaminated water using pictures.Observe and discuss what they see in the pictures.Identify types of contaminated water.
Step 4: Dangers of Contaminated Water7 minutesExplanationUse a chartExplain the health dangers using a chart.Listen and ask questions.Understand the health risks of consuming contaminated water.
Step 5: Substances that Contaminate Water7 minutesInteractive ActivityUse visual aids and real-life examplesShow examples of substances that contaminate water.Identify substances and discuss how they contaminate water.Recognize substances that can contaminate water.
Step 6: Note Taking3 minutesGuided Note TakingProvide a structured note for copyingGuide pupils to copy the notes from the board.Copy notes accurately.Reinforce key points through note-taking.
Step 7: Evaluation and Conclusion3 minutesQ&AReview key points and ask questionsAsk pupils questions to review what they learned.Answer questions and participate in discussion.Assess understanding and clarify any misconceptions.

Classroom Note:

Contaminated Water

Contaminated water is water that contains harmful substances such as chemicals, waste, and microorganisms which can cause health problems.


  1. Chemical Contaminated Water: Contains harmful chemicals like pesticides and industrial waste.
  2. Biological Contaminated Water: Contains harmful microorganisms such as bacteria and viruses.
  3. Physical Contaminated Water: Contains visible particles like soil or debris.
  4. Radiological Contaminated Water: Contains radioactive substances.
  5. Heavy Metal Contaminated Water: Contains metals like lead and mercury.

Dangers of Taking Contaminated Water:

  1. Causes diseases like cholera and typhoid.
  2. Can lead to poisoning from chemicals.
  3. Causes diarrhea and stomach problems.
  4. Affects growth and development in children.
  5. Weakens the immune system.

Substances that Contaminate Water:

  1. Industrial waste
  2. Agricultural runoff (pesticides)
  3. Household chemicals (detergents)
  4. Sewage and waste water
  5. Plastics and other debris

Lesson Evaluation:

To evaluate the learning, the teacher asks pupils to:

  1. Define contaminated water.
  2. List five types of contaminated water.
  3. Mention three dangers of taking contaminated water.
  4. Identify four substances that contaminate water.
  5. Discuss one way to prevent water contamination in their community.

Note for teachers using my lesson plan:

Hi there, remember that I didn’t make this lesson plan with any particular class or teacher in mind and I tried as much as possible with my experience and expertise to deliver this plan in a standard and effective style utilizing the best strategy and methods. Nevertheless, you are free to customize the lesson content, teaching methods, timing and pupil activities to suit your teaching style, pupils comprehension, curriculum, and resources available to you. Happy teaching!

Categorized in:

Lesson Notes,

Last Update: June 3, 2024