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:
- Define tubers and grains.
- Identify examples of tubers and grains.
- 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
- Definition of Tubers
- Tubers are underground plant stems that store nutrients.
- Examples of Tubers
- Yam
- Potato
- Cassava
- Sweet potato
- Definition of Grains
- Grains are small, hard seeds harvested from cereal crops.
- Examples of Grains
- Rice
- Maize (corn)
- Wheat
- Millet
- 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
- Tubers are ______ plant stems.
a) underground
b) aboveground
c) small
d) large - An example of a tuber is ______.
a) rice
b) yam
c) wheat
d) maize - Grains are harvested from ______.
a) trees
b) cereals
c) flowers
d) vegetables - ______ is an example of a grain.
a) Potato
b) Cassava
c) Rice
d) Sweet potato - Tubers store ______.
a) water
b) energy
c) air
d) seeds - ______ grow underground.
a) Grains
b) Tubers
c) Leaves
d) Fruits - Maize is also known as ______.
a) wheat
b) rice
c) corn
d) millet - ______ is a tuber.
a) Wheat
b) Yam
c) Millet
d) Rice - Grains are usually ______ than tubers.
a) larger
b) smaller
c) longer
d) heavier - ______ is an example of a grain.
a) Potato
b) Cassava
c) Wheat
d) Sweet potato - Tubers are ______ than grains.
a) smaller
b) larger
c) lighter
d) thinner - Grains are harvested from ______ crops.
a) root
b) fruit
c) cereal
d) flower - Tubers are harvested from ______ crops.
a) root
b) fruit
c) cereal
d) flower - Rice is an example of a ______.
a) tuber
b) grain
c) fruit
d) vegetable - Sweet potatoes are rich in ______.
a) protein
b) carbohydrates
c) fat
d) water
Class Activity Discussion
- What are tubers? Tubers are underground plant stems that store nutrients.
- Can you give examples of tubers? Examples include yam, potato, cassava, and sweet potato.
- What are grains? Grains are small, hard seeds harvested from cereal crops.
- Can you give examples of grains? Examples include rice, maize, wheat, and millet.
- How do tubers grow? Tubers grow underground.
- How do grains grow? Grains grow above the ground.
- Why are tubers important? Tubers store nutrients and provide energy.
- Why are grains important? Grains are a major source of food and provide energy.
- Are yams tubers? Yes, yams are tubers.
- Is rice a grain? Yes, rice is a grain.
- What is maize also known as? Maize is also known as corn.
- What do tubers store? Tubers store nutrients.
- Are potatoes tubers? Yes, potatoes are tubers.
- Is wheat a grain? Yes, wheat is a grain.
- 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
- What are tubers?
- Give two examples of tubers.
- What are grains?
- Give two examples of grains.
- How do tubers grow?
- How do grains grow?
- Name a tuber and its benefit.
- Name a grain and its benefit.
- What is maize also known as?
- Why are tubers and grains important?
Conclusion
The teacher goes around to mark and does the necessary corrections on the topic above.