Exploring the Parts of a Plant: Roots, Stems, Leaves, and Flowers Agricultural Science JSS 1 First Term Lesson Notes Week 7

Lesson Plan Presentation

Subject: Agricultural Science

Class: JSS 1

Term: First Term

Week: 7

Age: 11-12 years

Topic: Crop Plant Forms

Sub-topic: Parts of Plants and their Functions

Duration: 40 minutes

Behavioral Objectives

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

1. Identify the different parts of a plant.
2. Draw a diagram of a typical plant showing its parts.
3. Explain the functions of the shoot, leaves, roots, and flowers.

Keywords: Plant, Shoot, Leaves, Roots, Flowers

Set Induction

The teacher brings a potted plant to class and asks, “Can you name the parts of this plant?”

Entry Behavior
Students are familiar with plants from their environment and have basic knowledge of plant parts.

Learning Resources and Materials

1. Live plants or pictures of plants
2. Diagram of a plant showing parts
3. Drawing materials (pencils, paper)

Building Background/Connection to Prior Knowledge
Students know plants from their daily surroundings and have observed the various parts, such as leaves and stems. This lesson will deepen their understanding by exploring the roles of each part.

Embedded Core Skills

1. Observation
2. Critical thinking
3. Drawing

Reference Books
Lagos State Scheme of Work for JSS 1 Agricultural Science

Instructional Materials

1. Live plants or plant diagrams
2. Drawing tools for plant illustration

Content

Parts of a Plant

Plants have various parts, each serving an important function. The major parts are:

1. Roots: Located underground, they anchor the plant and absorb water and nutrients from the soil.
2. Shoot/Stem: This is the part that grows above the ground, supporting the plant and transporting nutrients and water between roots and leaves.
3. Leaves: These are flat, green structures where photosynthesis occurs, enabling the plant to produce food.
4. Flowers: These are the reproductive parts of the plant responsible for producing seeds and fruit.

Functions of Plant Parts

• Roots:
  • Anchor the plant in the soil.
  • Absorb water and minerals from the soil.
  • Store food for the plant.
• Shoot/Stem:
  • Supports the plant and holds it upright.
  • Transports water and nutrients between the roots and leaves.
  • Sometimes stores food and water.
• Leaves:
  • Produce food for the plant through photosynthesis.
  • Exchange gases (oxygen and carbon dioxide) with the environment.
  • Regulate water loss through tiny openings called stomata.
• Flowers:
  • Enable reproduction by producing seeds.
  • Attract pollinators like bees through their color and scent.

Diagram of a Plant

Students will draw a simple diagram of a plant, labeling the parts: roots, stem, leaves, and flower.

Evaluation (Fill-in-the-blank Questions with Options)

1. The part of the plant responsible for absorbing water is the _____.
   a) shoot
   b) roots
   c) leaves
   d) flowers
2. The process of food production in plants is called _____.
   a) pollination
   b) reproduction
   c) photosynthesis
   d) germination
3. The leaves produce food for the plant through _____.
   a) breathing
   b) photosynthesis
   c) absorption
   d) respiration
4. The part of the plant that supports it and transports nutrients is the _____.
   a) flower
   b) root
   c) leaf
   d) stem
5. Flowers help in plant _____.
   a) transportation
   b) reproduction
   c) water storage
   d) anchoring
6. The green structures in plants where food is made are called _____.
   a) stems
   b) flowers
   c) leaves
   d) roots
7. Roots absorb water and nutrients from the _____.
   a) air
   b) soil
   c) sun
   d) leaves
8. The part of the plant responsible for reproduction is the _____.
   a) roots
   b) leaves
   c) flowers
   d) stem
9. The tiny openings on leaves that regulate water loss are called _____.
   a) stomata
   b) flowers
   c) stems
   d) roots
10. The roots help to ____ the plant in the soil.
    a) support
    b) anchor
    c) store
    d) transport

Class Activity Discussion (FAQs)

1. What are the main parts of a plant?
   The main parts are roots, stem, leaves, and flowers.
2. What is the function of the roots?
   Roots anchor the plant and absorb water and nutrients from the soil.
3. What do leaves do?
   Leaves produce food for the plant through photosynthesis.
4. What role do flowers play in plants?
   Flowers enable reproduction by producing seeds.
5. What is photosynthesis?
   Photosynthesis is the process by which plants make food using sunlight, water, and carbon dioxide.
6. How do stems help plants?
   Stems support the plant and transport water and nutrients between the roots and leaves.
7. Why are flowers important in plants?
   Flowers are important for the reproduction of plants.
8. What is the role of roots besides absorbing water?
   Roots also store food for the plant.
9. What is the function of stomata on leaves?
   Stomata control the movement of gases and water vapor in and out of the plant.
10. Can stems store food for the plant?
    Yes, in some plants, stems store food and water.

Presentation

• Step 1: The teacher revises the previous lesson on “Forms of Agriculture.”
• Step 2: The teacher introduces the new topic: “Today, we will learn about the parts of a plant and their functions.”
• Step 3: The teacher explains each part of the plant using live plants or diagrams and demonstrates drawing a plant with labels.

Teacher’s Activities

• Show live plants or diagrams.
• Guide students in drawing a plant and labeling its parts.
• Explain the functions of roots, shoot/stem, leaves, and flowers.

Learners’ Activities

• Identify the parts of a plant.
• Draw and label the diagram of a plant.
• Discuss the functions of plant parts in groups.

Assessment

1. Identify three parts of a plant.
2. What is the function of the roots?
3. How do leaves help plants?
4. What is the role of the flowers?
5. Draw and label a diagram of a plant.

Evaluation Questions

1. Name the parts of a plant.
2. What is the function of the stem?
3. Describe the role of roots in a plant.
4. What is the purpose of flowers in plant reproduction?
5. How do leaves produce food for the plant?
6. Draw and label the parts of a plant.
7. Explain the process of photosynthesis.
8. What are stomata, and what is their function?
9. Why are stems important in the transportation of nutrients?
10. List two functions of the roots.

Conclusion

The teacher summarizes the lesson by reviewing the functions of the different parts of a plant. Students are assigned to draw and label a plant diagram at home, and the class activity is graded. Necessary corrections are made.

More Useful Links

• Types of Aquatic and Terrestrial Plants Agricultural Science JSS 1 First Term Lesson Notes Week 8
• Classification of Crops by Life Span and Uses Agricultural Science JSS 1 First Term Lesson Notes Week 9
• Soil Types and Their Characteristics Agricultural Science JSS 1 First Term Lesson Notes Week 10