Class: Junior Secondary School 2 (JSS2, JSS 2)
Term: 2nd Term
Week: 8
Age: 13 years
Duration: 45 minutes
Subject: Pre-Vocational Studies
Curriculum Theme: Home Economics
Previous Lesson: Meaning of Food, Nutrient, Nutrition and Sources of Food Nutrients
Topic: Food Nutrients (part 2)
Subject Matter: Classification of food nutrients, Functions of each nutrient, Sources and importance of each nutrient

Specific Objectives

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

Cognitive Domain:
(a) Identify and classify the different types of food nutrients.
(b) Explain the functions of each food nutrient in the body.
Affective Domain:
(a) Appreciate the importance of consuming balanced meals containing all essential nutrients.
(b) Show interest in making healthy food choices at home and school.
Psychomotor Domain:
(a) Demonstrate the ability to categorize local foods into their respective nutrient groups.
(b) Prepare a simple chart showing examples of food nutrients.
Social Domain:
(a) Work collaboratively in groups to discuss the importance of various nutrients.
(b) Share knowledge about nutrient-rich foods with family and peers.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum
Lagos State Unified Scheme of Work for Junior Secondary Schools
Centre for Health Protection – Nutrient Classifications
Relevant Textbooks

Instructional Materials

The teacher will teach this lesson with the aid of:

Flashcards of nutrient types
Charts showing food groups and their nutrients
Samples of common foods (fruits, vegetables, proteins)
Whiteboard and markers
Handouts with tables for classification

Rationale for the Lesson

This lesson equips pupils with essential knowledge about nutrients, enabling healthy eating habits and better physical growth.

Prerequisite/Previous Knowledge

Pupils should have basic awareness of common foods and the concept of a balanced diet from previous lessons and daily experiences.

Lesson Content/Board Summary

Food Nutrients – Classification, Functions, Sources, and Importance

Classification of Food Nutrients

Food nutrients are substances in foods that provide energy, promote growth, and maintain body functions. They are essential for health and wellbeing.

The following are the main classifications of food nutrients:

Carbohydrates
Proteins
Fats (Lipids)
Vitamins
Minerals
Water
Fibre

Functions of Food Nutrients

Each nutrient has specific roles in the body to ensure proper growth and health.

The following are the functions of each nutrient:

Carbohydrates: Provide energy for daily activities and body functions.
Proteins: Help in growth, repair of body tissues, and production of enzymes and hormones.
Fats: Provide concentrated energy, protect organs, and help in the absorption of fat-soluble vitamins.
Vitamins: Regulate body processes and prevent deficiency diseases.
Minerals: Build strong bones and teeth, regulate fluids, and support nerve and muscle function.
Water: Maintains body temperature, transports nutrients, and removes waste.
Fibre: Aids digestion and prevents constipation.

Sources of Food Nutrients

Foods contain different nutrients necessary for a healthy body.

These include:

Carbohydrates: Rice, yam, maize, bread
Proteins: Fish, meat, eggs, beans, nuts
Fats: Vegetable oils, butter, avocado, nuts
Vitamins: Fruits (oranges, mangoes), vegetables (carrots, spinach)
Minerals: Milk, fish, leafy vegetables, nuts
Water: Drinking water, fruits, soups
Fibre: Vegetables, fruits, whole grains

Importance of Food Nutrients

Consuming all nutrients in the right proportions promotes overall health and prevents diseases.

The following are the key benefits:

Enhances physical growth and development
Boosts immunity and disease resistance
Provides energy for daily activities
Supports proper functioning of organs
Improves mental alertness and learning capacity

Teaching Methods/Instructional Techniques

Discussion, Lecture, Explanation, Storytelling, Visual Aids, Demonstration, Group Work

Instructional Procedures

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

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: Review previous lesson on food nutrients, ask pupils questions about foods they ate recently and which nutrients they think they contain.
Pupils’ Activity: Respond to questions and recall previous knowledge.
Learning Point: Activates prior knowledge and engages pupils.

Step 2: Classification of Food Nutrients

Time: 8 minutes
Teaching Skill: Explanation
Teacher’s Activity: Define food nutrients and explain the classification using charts and flashcards.
Pupils’ Activity: Copy the classification of nutrients into their notebooks.
Learning Point: Pupils understand types of food nutrients.

Step 3: Functions of Food Nutrients

Time: 10 minutes
Teaching Skill: Discussion
Teacher’s Activity: Explain the functions of each nutrient using real-life examples and illustrations.
Pupils’ Activity: Take notes and give examples of foods that provide each nutrient.
Learning Point: Pupils can relate nutrients to their bodily functions.

Step 4: Sources of Food Nutrients

Time: 8 minutes
Teaching Skill: Demonstration
Teacher’s Activity: Show real food samples or pictures and categorize them into nutrient groups.
Pupils’ Activity: Participate in grouping foods correctly and discuss sources.
Learning Point: Pupils identify foods rich in specific nutrients.

Step 5: Importance of Food Nutrients

Time: 5 minutes
Teaching Skill: Explanation
Teacher’s Activity: Discuss the benefits of consuming nutrients for growth, health, and energy.
Pupils’ Activity: Listen and summarize the importance of nutrients.
Learning Point: Pupils appreciate the relevance of nutrients in daily life.

Step 6: Note-Taking

Time: 5 minutes
Teaching Skill: Guided Practice
Teacher’s Activity: Guide pupils to copy the board summary neatly into their notebooks.
Pupils’ Activity: Copy notes accurately.
Learning Point: Reinforces learning and provides personal reference.

Step 7: Evaluation/Review

Time: 4 minutes
Teaching Skill: Questioning/Assessment
Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

List the types of food nutrients.
State the function of proteins and carbohydrates.
Give two sources of vitamins and minerals.
Explain why water and fibre are important in the diet.
Pupils’ Activity: Answer questions orally or in writing.
Learning Point: Assesses comprehension and retention of the lesson.

Step 8: Conclusion

Time: 2 minutes
Teaching Skill: Summary
Teacher’s Activity: Recap the lesson emphasizing classification, functions, sources, and importance of nutrients.
Pupils’ Activity: Listen attentively and ask clarifying questions if necessary.
Learning Point: Consolidates learning and prepares pupils for next lesson.

Lesson Keywords

Nutrients – substances in food that the body needs
Carbohydrates – energy-giving foods
Proteins – body-building foods
Vitamins – compounds that regulate body processes
Minerals – elements that support body function
Fibre – indigestible parts of plant foods
Fats – energy-rich nutrient

Differentiation

Use visual aids and food samples for learners with low literacy; group discussions for collaborative learning; oral questioning for fast learners.

Note for teachers using this lesson plan

Ensure real food samples are safe for handling. Encourage pupils to share personal experiences with nutrient-rich meals. Reinforce lesson with home-based practical examples.