
Week One
Subject: Agricultural Science
Class: Primary Three
Week of the Third Term: 1st Week
Topic: Balance Diet
Subtopic: Meaning of Balance Diet and its Importance for Health
Instructional Objectives
At the end of the lesson, pupils should be able to:
- Define what a balanced diet is and identify its key components.
- Explain the importance of a balanced diet for growth, energy, and health.
- Illustrate examples of foods that make up a balanced diet using charts or drawings.
Entry Behaviour
Before starting this lesson, pupils should already know:
- The different food groups (e.g., carbohydrates, proteins, vitamins).
- The role of food in maintaining health.
Instructional Materials
- Textbook: Agriculture For Primary School Book 3 by Dairo S.D, Akande A.S, Akindele F.Y, Muazu I, Uzowanne C.
- Charts/Visual Aids: Diagrams of a balanced plate of food showing the different food groups.
- Flashcards: Flashcards with pictures of different foods for identification.
Reference Materials
- Dairo S.D, Akande A.S, Akindele F.Y, Muazu I, Uzowanne C. (2023). Agriculture For Primary School Book 3. Spectrum Book Ltd., Lagos.
- Youdeowei, A., Ogbazi, J.N., Adesiyan, S.O., & Olowu, T. (2018). WABP Primary School Agriculture Book 3. West African Book Publishers Ltd., Lagos.
Content
Balance Diet:
A balanced diet is a meal that contains all the necessary food groups in the right proportions to maintain good health. The food groups are:
- Carbohydrates (energy-giving foods) – Examples: rice, yam, bread.
- Proteins (body-building foods) – Examples: beans, eggs, fish.
- Fats and Oils – Examples: palm oil, butter, avocado.
- Vitamins and Minerals – Examples: fruits, vegetables, milk.
- Water – Essential for hydration and digestion.
Importance of a Balanced Diet:
- Growth: Provides nutrients needed for body growth and development.
- Energy: Gives the body energy to work and play.
- Prevention of Illness: Helps prevent diseases by keeping the body healthy and strong.
Lesson Presentation (Step-by-Step Procedure)
Step 1: Introduction
Begin with a question: “What do you eat every day to stay healthy?” Show a picture of a person looking weak and tired and ask, “Why do you think this person looks weak?” Engage pupils in a discussion on how food affects health.
Step 2: Explanation
Define a balanced diet and explain that it is a diet that contains the right amounts of different food groups. Show a chart with pictures of various foods, categorizing them into the five main food groups.
Step 3: Demonstration
Using flashcards, show different food items and ask the pupils to identify which food group each belongs to. Use a plate model to demonstrate how to arrange food in a balanced way, showing the proportions of each food group.
Step 4: Guided Practice
Provide pupils with a set of food flashcards and ask them to categorize each food item into its correct group. Walk around to assist and correct any mistakes.
Step 5: Independent Practice
Give each pupil a blank plate and ask them to draw a balanced meal. They should include examples of food from each of the five food groups.
Step 6: Feedback
Review each pupil’s drawing and offer feedback. Ask some pupils to explain why they chose certain foods for their meal. Correct any misconceptions and encourage peer-to-peer learning.
Evaluation
Formative Assessment:
- Observe pupils during guided and independent practice, providing immediate feedback as needed.
- Ask questions like, “Can you name a food that helps us grow?” or “What is the main job of carbohydrates?” to assess understanding during the lesson.
Summative Assessment:
At the end of the lesson, ask pupils to complete a worksheet where they match foods to the correct food group and explain the importance of a balanced diet.
Summary/Conclusion
Summarize the key points:
- A balanced diet is essential for health and includes all five food groups in the right amounts.
- It provides energy, promotes growth, and helps prevent illness.
Encourage pupils to eat a balanced diet daily for good health.
Assignment
For homework, ask pupils to write a short paragraph on why it is important to eat a balanced diet, using examples of foods from each group.

