Pollination and Fertilization in Plants Basic Science Primary 5 Second Term Lesson Notes Week 3

Detailed Lesson Plan on Reproduction in Plants (Pollination and Fertilization)

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Subject: Basic Science and Technology

Class: Basic 5 / Primary 5

Term: Second Term

Week: Week 3

Age: 9-11 years

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Topic: Reproduction in Plants (Pollination and Fertilization)

Sub-topic: Pollination and Fertilization Processes

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Duration: 40 Minutes

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Behavioural Objectives

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

1. Identify parts of the flower involved in pollination and fertilization.
2. Describe the stages of plant development from flower to fruit.
3. Distinguish between pollination and fertilization.
4. State examples of pollinators and their roles in pollination.

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Keywords

• Pollination
• Fertilization
• Stamen
• Pistil
• Pollinators

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Set Induction

The teacher will display a colorful diagram of a flower and ask students to identify its parts. The teacher will then ask questions such as:

• “What part of a flower do bees visit most often?”
• “Can flowers produce fruits without seeds?”

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Entry Behaviour

The pupils have prior knowledge of the parts of a plant and their functions from the previous lesson.

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Learning Resources and Materials

• Wall charts of flower diagrams
• Pictures and flashcards of pollinators (bees, butterflies, etc.)
• Diagrams showing the processes of pollination and fertilization
• A flower plant
• A short video on pollination

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Building Background/Connection to Prior Knowledge

The teacher will link the lesson to the previous topic on the structure and functions of plant parts, emphasizing the role of flowers in reproduction.

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Embedded Core Skills

• Critical Thinking
• Observation and Analysis
• Communication Skills

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Reference Materials

• Lagos State Scheme of Work
• 9-Year Basic Education Curriculum
• Textbooks on Basic Science and Technology
• Online educational resources

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Instructional Materials

1. Wall charts and diagrams
2. Flower specimens
3. Pictures and videos of pollination

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Content

Definition and Explanation

1. Pollination: The transfer of pollen grains from the male part of a flower (anther) to the female part (stigma). Pollination can occur through:
   • Wind
   • Water
   • Pollinators like bees and butterflies
2. Fertilization: The process where the pollen grain travels down the style to combine with the ovule in the ovary, forming seeds.

Parts Involved in Pollination and Fertilization

• Stamen: Male reproductive organ, including the filament and anther.
• Pistil: Female reproductive organ, comprising the stigma, style, and ovary.
• Petals: Attract pollinators.
• Sepals: Protect the developing flower.

Examples of Pollinators

• Bees
• Butterflies
• Bats
• Hummingbirds

Stages of Development from Flower to Fruit

1. Pollination: Pollen is transferred to the stigma.
2. Fertilization: Pollen meets ovule to form a seed.
3. Germination: Seed grows into a new plant.
4. Fruit Formation: Ovary develops into a fruit.
5. Seed Dispersal: Seeds are spread to new locations.

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Evaluation

Fill-in-the-Blank Questions

1. The male part of a flower is called the ________.
   a) Pistil
   b) Stamen
   c) Sepal
   d) Petal
2. Pollination is the transfer of pollen grains from the ________ to the ________.
   a) Ovary, anther
   b) Stigma, ovule
   c) Anther, stigma
   d) Petal, style
3. The process where pollen meets the ovule is called ________.
   a) Pollination
   b) Fertilization
   c) Germination
   d) Seed dispersal
4. The colorful part of a flower that attracts pollinators is called the ________.
   a) Petal
   b) Stamen
   c) Sepal
   d) Pistil
5. The ________ contains the seeds of the plant.
   a) Stamen
   b) Ovary
   c) Petal
   d) Sepal

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Class Activity Discussion

FAQs with Answers

1. What is pollination?
   Answer: The transfer of pollen from the anther to the stigma.
2. What are the two types of pollination?
   Answer: Self-pollination and cross-pollination.
3. Name one insect that helps in pollination.
   Answer: Bees.
4. What is fertilization?
   Answer: The union of pollen and ovule to form a seed.
5. Which part of the flower becomes the fruit?
   Answer: The ovary.
6. How does the stamen contribute to reproduction?
   Answer: It produces pollen needed for fertilization.
7. What is the role of petals?
   Answer: To attract pollinators.
8. Why are pollinators important?
   Answer: They help transfer pollen for fertilization.

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Presentation Steps

1. Introduction
   • Teacher revises the previous topic.
   • Asks pupils about the parts of a plant.
2. New Topic Introduction
   • Teacher explains pollination and fertilization with charts and a flower specimen.
3. Class Activity
   • Pupils observe a flower and identify its parts.
   • Discuss pollinators’ roles.
4. Teacher’s and Learners’ Activities
   • Teacher: Demonstrates pollination using a flower.
   • Learners: Identify parts and discuss their roles.
5. Assessment
   • Pupils answer short questions orally.

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Conclusion

The teacher summarizes the topic and marks pupils’ written exercises. Feedback is provided for improvement.

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