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Subject: Biology
Semester: 1
Period: 2
Week: 8
School Name:
Teacher’s Name:
Subject: Biology
Grade Level: Grade 11
Date: Week 8
Lesson Duration: 45 minutes
Week & Term: Week 8, Period II
Topic: Nutrition and Food Preservation
Sub-topic: Food and Nutrients – Carbohydrates, Proteins, Lipids, Vitamins, Mineral Salts, and Water
Learning Objectives
By the end of the lesson, students should be able to:
- List the six main classes of nutrients in food.
- Describe the function of each nutrient in the body.
- Identify food sources for each class of nutrient.
- Explain the health implications of nutrient deficiency or excess.
Previous Knowledge
Students already know:
• Food is required for energy and growth
• There are different kinds of foods available in their environment
Instructional Materials
- Food samples or pictures (beans, rice, palm oil, fish, vegetables, fruits, salt, water)
• Chart showing nutrient groups and examples
• Nutrient flashcards
• Real-life food packages with nutrition labels
Lesson Development – ABC Model
A – Anticipation (Warm-up / Starter)
Time: 5–10 mins
Ask students:
– “What did you eat today?”
– “Which food gives you energy?”
– “Which helps your body grow?”
Use this to lead into the lesson on food nutrients.
Teacher’s Role: Prompt students to connect food with body function
Learner’s Role: Share their meals and guesses on what nutrients they contain
B – Building Knowledge (Main Lesson Body)
Time: 25–30 mins
Teacher explains:
• Carbohydrates – Energy-giving foods. Examples: rice, cassava, bread
• Proteins – Help with growth and tissue repair. Examples: beans, meat, eggs
• Fats & Oils – Provide energy and help in absorbing vitamins. Examples: palm oil, butter
• Vitamins – Needed in small amounts to keep the body functioning well. Found in fruits and vegetables
• Mineral Salts – Build strong bones and regulate body processes. Examples: calcium (milk), iron (meat)
• Water – Essential for all life processes. Maintains temperature, transports substances
Learners’ Activities (Expanded):
• Sort sample food cards under the correct nutrient group
• Create a table matching nutrients, their functions, and food sources
• Group work: each group presents on one nutrient – its sources, importance, and deficiency signs
• Label nutrition facts on actual food labels (salt, margarine, cereal boxes)
Assessment Checks:
✓ Nutrient group matching exercise
✓ Labeling a blank food pyramid
✓ Ask: “Which nutrient is missing if someone has weak bones?”
Notes (Expanded & Detailed):
Food provides six essential nutrients: carbohydrates, proteins, fats, vitamins, minerals, and water.
• Each nutrient performs unique roles: carbohydrates supply energy; proteins build and repair tissues; fats provide stored energy and help with vitamin absorption; vitamins and minerals regulate body functions and prevent diseases; water supports digestion, excretion, and temperature control.
• Deficiency in any nutrient leads to diseases – e.g., lack of protein causes kwashiorkor; vitamin C deficiency causes scurvy.
Understanding nutrients helps us make better food choices for our health and growth.
C – Consolidation (Conclusion & Assessment)
Time: 5–10 mins
Summarize nutrient types, food examples, and functions.
Evaluation Method (Expanded):
• Nutrient identification quiz using flashcards
• Oral review where students call out nutrient functions
• Short writing task: “Why do we need proteins?”
Assignment (Expanded):
- Keep a food diary for one day and list what you ate. Classify each item under its nutrient group.
- Research and write short notes on a deficiency disease (e.g., scurvy or rickets).
- Interview a parent or local health worker about common malnutrition cases in your community.
Differentiation / Inclusive Strategies
- Struggling Learners: Use pictures and oral repetition of key facts
• Advanced Learners: Explore nutrient-rich diets for athletes or pregnant women
• Students with Disabilities: Large print handouts and pair support in sorting exercises
Teacher’s Reflection (After Class)
• What worked well?
• What needs improvement?
• Students’ engagement level: □ High □ Medium □ Low
• Next steps: Introduce balanced diet and malnutrition next week