Classification of Energy-Giving Food Tubers and Grains Agricultural Science Primary 3 First Term Lesson Notes Week 4

Agricultural Science Primary 3 First Term Lesson Notes Week 4

Subject: Agricultural Science
Class: Primary 3
Term: First Term
Week: 4
Age: 8 years
Topic: Classification of Energy-Giving Food
Sub-topic: Tubers and Grains
Duration: 40 minutes

Behavioural Objectives

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

1. Define tubers and grains.
2. Identify examples of tubers and grains.
3. Explain the differences between tubers and grains.

Keywords

• Tubers
• Grains
• Energy
• Food
• Nutrients

Set Induction

Begin the lesson by showing pictures of different tubers and grains and asking pupils to name them.

Entry Behaviour

Pupils have a basic understanding of carbohydrate-rich foods from previous lessons.

Learning Resources and Materials

• Pictures of tubers and grains
• Samples of tubers (e.g., yam, potato)
• Samples of grains (e.g., rice, maize)

Building Background/Connection to Prior Knowledge

Discuss briefly what the pupils already know about energy-giving foods and carbohydrates.

Embedded Core Skills

• Critical thinking
• Communication
• Observation

Learning Materials

• Lagos State Scheme of Work for Primary 3
• Textbooks
• Food pyramid chart

Instructional Materials

• Pictures of tubers and grains
• Real or model samples of tubers and grains

Content

1. Definition of Tubers
   • Tubers are underground plant stems that store nutrients.
2. Examples of Tubers
   • Yam
   • Potato
   • Cassava
   • Sweet potato
3. Definition of Grains
   • Grains are small, hard seeds harvested from cereal crops.
4. Examples of Grains
   • Rice
   • Maize (corn)
   • Wheat
   • Millet
5. Differences between Tubers and Grains
   • Tubers grow underground, while grains grow above the ground.
   • Tubers are usually larger than grains.
   • Grains are harvested from cereal crops, while tubers are harvested from root crops.

Evaluation

1. Tubers are ______ plant stems.
   a) underground
   b) aboveground
   c) small
   d) large
2. An example of a tuber is ______.
   a) rice
   b) yam
   c) wheat
   d) maize
3. Grains are harvested from ______.
   a) trees
   b) cereals
   c) flowers
   d) vegetables
4. ______ is an example of a grain.
   a) Potato
   b) Cassava
   c) Rice
   d) Sweet potato
5. Tubers store ______.
   a) water
   b) energy
   c) air
   d) seeds
6. ______ grow underground.
   a) Grains
   b) Tubers
   c) Leaves
   d) Fruits
7. Maize is also known as ______.
   a) wheat
   b) rice
   c) corn
   d) millet
8. ______ is a tuber.
   a) Wheat
   b) Yam
   c) Millet
   d) Rice
9. Grains are usually ______ than tubers.
   a) larger
   b) smaller
   c) longer
   d) heavier
10. ______ is an example of a grain.
    a) Potato
    b) Cassava
    c) Wheat
    d) Sweet potato
11. Tubers are ______ than grains.
    a) smaller
    b) larger
    c) lighter
    d) thinner
12. Grains are harvested from ______ crops.
    a) root
    b) fruit
    c) cereal
    d) flower
13. Tubers are harvested from ______ crops.
    a) root
    b) fruit
    c) cereal
    d) flower
14. Rice is an example of a ______.
    a) tuber
    b) grain
    c) fruit
    d) vegetable
15. Sweet potatoes are rich in ______.
    a) protein
    b) carbohydrates
    c) fat
    d) water

Class Activity Discussion

1. What are tubers? Tubers are underground plant stems that store nutrients.
2. Can you give examples of tubers? Examples include yam, potato, cassava, and sweet potato.
3. What are grains? Grains are small, hard seeds harvested from cereal crops.
4. Can you give examples of grains? Examples include rice, maize, wheat, and millet.
5. How do tubers grow? Tubers grow underground.
6. How do grains grow? Grains grow above the ground.
7. Why are tubers important? Tubers store nutrients and provide energy.
8. Why are grains important? Grains are a major source of food and provide energy.
9. Are yams tubers? Yes, yams are tubers.
10. Is rice a grain? Yes, rice is a grain.
11. What is maize also known as? Maize is also known as corn.
12. What do tubers store? Tubers store nutrients.
13. Are potatoes tubers? Yes, potatoes are tubers.
14. Is wheat a grain? Yes, wheat is a grain.
15. What are the differences between tubers and grains? Tubers grow underground and are usually larger, while grains grow above ground and are smaller.

Presentation

Step 1: The teacher revises the previous topic, which was “Energy-Giving Food – Meaning and Examples of Carbohydrates.”

Step 2: The teacher introduces the new topic: “Classification of Energy-Giving Food – Tubers or Grains.”

Step 3: The teacher allows the pupils to give their own contributions and corrects them when and where necessary.

Teacher’s Activities

• Show pictures of tubers and grains.
• Explain the definitions and examples of tubers and grains.
• Discuss the differences between tubers and grains.
• Ask questions to check understanding.
• Correct pupils’ responses and provide additional explanations.

Learners’ Activities

• Answer questions about tubers and grains.
• Observe pictures and samples.
• Participate in discussions.

Assessment

1. What are tubers?
2. Give two examples of tubers.
3. What are grains?
4. Give two examples of grains.
5. How do tubers grow?
6. How do grains grow?
7. Name a tuber and its benefit.
8. Name a grain and its benefit.
9. What is maize also known as?
10. Why are tubers and grains important?

Conclusion

The teacher goes around to mark and does the necessary corrections on the topic above.