Class: Primary 4

Term: 1st Term

Week: 3

Age: 9 years

Duration: 40 minutes



Subject: Basic Science And Technology

Curriculum Theme: Basic Science

Topic: Changes in animals

Content: Life cycle of insects e.g. cockroach, butterfly. Growth in animals i.e. changes from young ones to adults.

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

  • Explain the growth in animals.
  • Explain the changes in insects.

Reference Materials:

  • 9 – Years Basic Education Curriculum
  • Abuja Educational Resource Centre Scheme of work
  • NAPPS National Unified Scheme of Work
  • Course Book
  • Online Information
  • Textbooks (List your relevant textbook here)

Instructional Materials:

  • Pictures or diagrams of the life cycle of a butterfly
  • Pictures of young and adult animals
  • Chart or poster with stages of animal growth
  • Whiteboard and markers

Rationale for the Lesson:

Understanding the changes in animals is crucial for appreciating the natural world and understanding the life cycles of different species.

Prerequisite/Previous Knowledge:

Students should have basic knowledge of animals and their characteristics.



ContentTimeTeaching MethodTeacher’s Point/ActivitiesPupils’ Activities
Introduction 10 minsIntroduce the topic Explain the topic and its importance. Ask questions to assess prior knowledge.Respond to questions and listen attentively.
Life Cycle of Insects 10 minsDiscussionShow pictures of the life cycle of a butterfly. Explain each stage (egg, larva, pupa, adult).Observe and discuss the pictures.
Growth in Animals 10 minsDiscussionShow pictures of young and adult animals. Explain the concept of growth in animals.Identify and discuss differences in young and adult animals.
Evaluation 5 minsQuestion and AnswerAsk questions about the life cycle of a butterfly and animal growth.Answer questions individually.
Conclusion 5 minsRecap and DiscussionSummarize the lesson and emphasize the importance of understanding changes in animals.Share what they’ve learned.

Note to Pupils:

Changes in Animals:

Animals go through various changes as they grow and develop. These changes are part of their life cycle. Let’s look at two important aspects of changes in animals:

  1. Life Cycle of Insects:
  • Insects like butterflies undergo a fascinating transformation known as metamorphosis.
  • The life cycle of a butterfly consists of four stages: egg, larva (caterpillar), pupa (chrysalis), and adult.
  • Eggs are laid by adult butterflies on plants. From these eggs, tiny caterpillars hatch.
  • Caterpillars eat and grow rapidly during the larval stage.
  • When they are fully grown, caterpillars form a chrysalis (pupa), where they undergo a remarkable change.
  • Inside the chrysalis, the caterpillar transforms into an adult butterfly.
  • The adult butterfly emerges from the chrysalis and can fly, lay eggs, and start the cycle again.

2. Growth in Animals:

  • All animals start their lives as young ones and gradually grow into adults.
  • Young animals may look different from the adults and have specific needs.
  • They grow by eating and getting nutrients from food.
  • As they grow, they go through various stages of development.
  • Over time, they change in size, shape, and behavior.
  • Eventually, they become mature adults capable of reproducing and taking care of themselves.


  1. Can you name the stages in the life cycle of a butterfly?
  2. What does “growth in animals” mean?
  3. Why is it important to understand how animals change?

Note to Teachers:

Customize the lesson content, teaching methods, and pupil activities to suit your teaching style, curriculum, and available resources.

Categorized in:

Lesson Notes,

Last Update: October 4, 2023