Growth and developmental changes in animals for Primary 4

Class: Primary Four
Term: First Term
Week: 6
Age: 9 years
Duration: 45 minutes
Subject: Basic Science and Technology
Curriculum Theme: Our Environment
Focal competence: Interpreting animal development using diagrams/models for effective communication
Key competencies/values: Communication; Creativity and Innovation
Skills:

• Recording changes in animals
• Analysing and interpreting observations
• Drawing and labelling life cycles of common animals

Previous Lesson: Causes of developmental changes in plants
Topic: Growth And Developmental Changes In Animals
Subject Matter: Meaning of growth and developmental changes in animals

Specific Objectives

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

Cognitive Domain

• explain the meaning of growth and developmental changes in animals;
• identify growth and developmental changes in animals;
• mention the names of the young ones of different animals.

Affective Domain

• appreciate the different stages of growth and development in animals;
• show curiosity about how different animals grow.

Psychomotor Domain

• match adult animals with their young ones;
• draw simple diagrams showing animal growth.

Reference Materials

The following resources were used in planning this lesson:

• 2025 Revised 9 Years Basic Education Curriculum
• Relevant State Unified Scheme of Work
• Basic Science and Technology for Primary 4
• The HeadTeacher Scheme of work

Instructional Materials

The teacher will teach this lesson with the aid of:

• Pictures of various adult animals and their young ones (e.g., hen and chick, goat and kid, dog and puppy, human and baby)
• Models of animals at different growth stages
• Recording book
• School surroundings (for observation)
• Digital display (if available)

Rationale for the Lesson

This lesson helps pupils understand the natural processes of growth and development that occur in all living things, especially animals. It builds foundational knowledge about life cycles and helps pupils appreciate the diversity of animal life around them. Understanding these changes also encourages observation skills and scientific inquiry.

Prerequisite/Previous Knowledge

Pupils should have basic knowledge of different types of animals and their characteristics. They should also be familiar with the concept that living things grow.

Lesson Content/Board Summary

Growth And Developmental Changes In Animals

Meaning of Growth in Animals

Growth in animals means an increase in size and weight. It is when an animal gets bigger over time. For example, a chick grows into a hen, and a puppy grows into a dog.

Meaning of Developmental Changes in Animals

Developmental changes in animals refer to the changes in form, structure, and ability that an animal undergoes as it matures. It is not just about getting bigger, but also changing in appearance and becoming more complex. For example, a caterpillar changes into a butterfly, and a tadpole changes into a frog.

Examples of Growth and Developmental Changes in Animals

1. A human baby grows into a child, then an adolescent, and finally an adult.
2. A chick hatches from an egg and grows into a full-grown chicken (hen or rooster).
3. A puppy is born small and grows into a large dog.
4. A kitten is born small and grows into a cat.
5. A calf is born and grows into a cow or bull.
6. A tadpole (young frog) lives in water and breathes with gills, then develops legs and lungs to become an adult frog that lives on land.
7. A caterpillar (larva of a butterfly) eats leaves, forms a cocoon (pupa), and then emerges as a beautiful butterfly.

Names of Young Ones of Different Animals

1. Dog – Puppy
2. Cat – Kitten
3. Cow – Calf
4. Goat – Kid
5. Sheep – Lamb
6. Chicken – Chick
7. Pig – Piglet
8. Duck – Duckling
9. Lion – Cub
10. Tiger – Cub
11. Bear – Cub
12. Kangaroo – Joey
13. Horse – Foal
14. Fish – Fry
15. Frog – Tadpole (young stage)
16. Butterfly – Caterpillar (larva stage)

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Question and Answer, Explanation, Observation, Matching Activity, Visual Aids.

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Questioning/Activating prior knowledge

Teacher’s Activity: The teacher asks pupils if they have noticed how they themselves have changed since they were babies. The teacher also asks about changes observed in pets or farm animals.

Pupils’ Activity: Pupils share their observations about personal growth and changes in animals they know.

Learning Point: Introduction to changes

Step 2: Explanation of Growth

Time: 7 minutes

Teaching Skill: Explanation/Demonstration

Teacher’s Activity: The teacher explains the meaning of growth as an increase in size and weight, using pictures of a baby and an adult human, or a puppy and a dog. The teacher gives simple examples.

Pupils’ Activity: Pupils listen, observe the pictures, and contribute examples of growth.

Learning Point: Meaning of growth

Step 3: Explanation of Developmental Changes

Time: 7 minutes

Teaching Skill: Explanation/Visualisation

Teacher’s Activity: The teacher explains developmental changes as changes in form, structure, or ability, using diagrams of a tadpole changing into a frog or a caterpillar into a butterfly. The teacher highlights that it’s more than just getting bigger.

Pupils’ Activity: Pupils listen, observe the diagrams, and ask questions for clarification.

Learning Point: Meaning of development

Step 4: Identification of Growth and Developmental Changes

Time: 8 minutes

Teaching Skill: Observation/Discussion

Teacher’s Activity: The teacher displays various pictures/models of animals at different life stages (e.g., chick to hen, calf to cow). The teacher guides pupils to identify and describe the growth and developmental changes observed in each example.

Pupils’ Activity: Pupils observe the pictures/models and describe the changes they see in the animals.

Learning Point: Animal change identification

Step 5: Naming Young Ones of Animals

Time: 6 minutes

Teaching Skill: Naming/Association

Teacher’s Activity: The teacher shows pictures of adult animals and their young ones. The teacher asks pupils to name the young ones of common animals like dogs, cats, cows, and chickens, providing the correct names where needed.

Pupils’ Activity: Pupils name the young ones of animals and learn new names.

Learning Point: Names of young animals

Step 6: Matching Activity

Time: 4 minutes

Teaching Skill: Guided practice/Matching

Teacher’s Activity: The teacher distributes flashcards with pictures of adult animals and their young ones. Pupils are instructed to match each adult animal with its correct young one.

Pupils’ Activity: Pupils actively participate in the matching activity, pairing adult animals with their young.

Learning Point: Adult-young animal matching

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. What is growth in animals?
2. What are developmental changes in animals?
3. Mention two animals that show clear developmental changes.
4. Name the young one of a dog and a cow.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Understanding animal changes

Step 8: Note-Taking

Time: 4 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils to copy the essential Board Summary notes on the meaning of growth, developmental changes, and names of young ones into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Recording lesson summary

Step 9: Conclusion

Time: 2 minutes

Teaching Skill: Reinforcement

Teacher’s Activity: The teacher briefly reminds pupils that all living things, including animals, grow and undergo various changes as they get older, which is a natural part of life. The teacher praises pupils for their participation.

Pupils’ Activity: Pupils listen and acknowledge the conclusion.

Learning Point: Consolidation of concepts

Continuous Assessment/Further Study

Type: Homework

Instruction: Answer the following questions in your notebook.

1. Draw a picture of an adult chicken and its young one, a chick.
2. List three animals and the names of their young ones that were not mentioned in class.
3. Explain in your own words the difference between growth and developmental change, giving one example for each.

Lesson Keywords

• Growth – Increase in size and weight of an animal.
• Developmental changes – Changes in form, structure, or ability of an animal as it matures.
• Young ones – Babies or offspring of animals.
• Tadpole – The young, aquatic form of a frog.
• Caterpillar – The larval stage of a butterfly or moth.

Differentiation

For weaker learners, provide pre-labelled pictures of animals and their young ones for matching, and focus on identifying only 3-4 common animal young ones. For faster learners, encourage them to research and draw the complete life cycle of an animal like a frog or a butterfly, labelling each stage.

Suggested Lesson Videos

Search on YouTube for: “Animal growth and development for kids Primary 4”

Teacher Guide for Using This Lesson Plan

Before the lesson, ensure you have a variety of clear pictures or models showing both growth (e.g., puppy to dog) and developmental changes (e.g., tadpole to frog, caterpillar to butterfly). Arrange these visuals to be easily displayed and referred to during explanations. Follow the teaching sequence, allowing sufficient time for pupil observation and discussion. Pay close attention to pupils’ understanding of the difference between simple growth and more complex developmental changes. During Step 8, guide pupils to copy the Board Summary notes neatly. Encourage pupils to ask questions and provide clear, simple answers. For pupils who struggle, use more hands-on examples and repetition. For those who grasp concepts quickly, challenge them with additional examples or simple research tasks. Always maintain a positive and engaging classroom environment.