Performance Objectives

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

  • Cognitive Domain: Identify six effects of taking harmful substances into the body.
  • Affective Domain: Demonstrate awareness of the need to avoid harmful substances.
  • Psychomotor Domain: Illustrate an example of a harmful substance and its effect using role-play or drawings.
  • Social Domain: Discuss with peers why it is essential to say “no” to harmful substances.

Reference Materials

The following resources were used in planning this lesson:


Instructional Materials

The teacher will teach this lesson with the aid of:

  • Flashcards showing effects like stomach pain and vomiting.
  • Pictures of harmful substances (medicine bottles, cleaning agents, etc.).
  • A chart summarizing the effects of harmful substances.
  • A whiteboard and markers for illustrations.

Rationale for the Lesson

This lesson helps pupils understand the dangers of taking harmful substances. It equips them with knowledge to protect their health and make safe choices.


Prerequisite/Previous Knowledge

Pupils know that people use substances like medicine and water to feel better or quench thirst.


Instructional Procedures

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

Content DevelopmentTimeTeaching MethodTeaching StrategyTeacher’s ActivityPupils’ ActivityLearning Point
Step 1: Introduction 5 minsSet inductionStorytellingNarrates a story about a child who felt sick after drinking an unknown liquid.Listen attentively and respond to questions.Pupils understand that some substances can harm their bodies.
Step 2: Explaining Effects10 minsExpositoryVisual aidsExplains six effects of harmful substances with flashcards.Observe the flashcards and ask questions.Pupils recognize the effects of harmful substances.
Step 3: Class Discussion7 minsInteractiveGuided conversationLeads a discussion on how to avoid harmful substances.Contribute ideas and share experiences.Pupils learn ways to prevent harm.
Step 4: Role-play Activity7 minsExperientialRole-playingGuides pupils in acting out scenarios involving harmful substances and their effects.Participate in role-play activity.Pupils demonstrate understanding through acting.
Step 5: Note-taking5 minsNote-takingStructured writingWrites key points on the board and asks pupils to copy.Copy notes into their books.Pupils retain key information.
Step 6: Evaluation5 minsQuestioningOral assessmentAsks evaluative questions based on the topic.Answer questions orally.Pupils’ comprehension is tested.
Step 7: Conclusion1 minSummarizationRecapSummarizes the lesson and gives a take-home message.Listen and reflect on the summary.Pupils recall essential points from the lesson.

Lesson Content

Effects Of Taking Substances Into The Body

Taking harmful substances into the body can cause the following:

  1. Stomach Pain: Your tummy might hurt a lot.
  2. Vomiting: You might feel sick and throw up.
  3. Dizziness: Your head might feel like it’s spinning.
  4. Tiredness: You could feel very sleepy or weak.
  5. Rashes: Your skin might get red and itchy.
  6. Headaches: Your head might hurt and feel heavy.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

  1. Name three effects of taking harmful substances.
  2. Share one way to avoid taking harmful substances.
  3. Role-play a situation where someone says “no” to harmful substances.

Note for Teachers Using This Lesson Plan

Encourage pupils to share stories or examples they know about harmful substances, as this builds a stronger connection to the topic. Keep the lesson interactive to maintain engagement. Happy teaching!

Last Update: November 24, 2024