PRIMARY 5: BASIC SCIENCE – SECOND TERM | WEEK 5

TOPIC: REPRODUCTION IN PLANTS I – FLOWERS AND POLLINATION

A: TEACHING AND LEARNING MATERIALS

1. Fresh flowers.
2. Diagram of a flower.
3. Hand lens.
4. Flower-part flashcards.
5. Pictures showing pollination.
6. Pupils’ notebooks and pencils.

B: REFERENCE MATERIALS

1. Scheme of work.
2. Recommended Basic Science textbook for Primary 5.
3. Online educational resources.

C: PREVIOUS KNOWLEDGE

The pupils know that plants are living things and that many plants produce flowers, fruits and seeds.

D: PERFORMANCE OBJECTIVES

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

1. Explain reproduction in plants.
2. Identify the main parts of a flower.
3. State the functions of the main flower parts.
4. Define pollination.
5. Differentiate between self-pollination and cross-pollination.
6. Mention agents of pollination.

E: CONTENT

Meaning of Reproduction in Plants

Reproduction in plants is the process by which plants produce new plants of their own kind. In flowering plants, flowers are important for reproduction.

Main Parts of a Flower

The major parts include: 🌸 Sepals – protect the flower when it is still a bud. 🌸 Petals – often attract insects because of their colour and smell. 🌸 Stamen – the male reproductive part. 🌸 Pistil or carpel – the female reproductive part.

Meaning of Pollination

Pollination is the transfer of pollen grains from the anther to the stigma of a flower.

Types of Pollination

Self-Pollination

This occurs when pollen is transferred to the stigma of the same flower or another flower on the same plant.

Cross-Pollination

This occurs when pollen is transferred from a flower on one plant to a flower on another plant of the same kind.

Agents of Pollination

Pollination may be carried out by:

• Wind.
• Insects.
• Birds.
• Other animals.

🐝 Bees are common agents of pollination.

F: LESSON PRESENTATION

F1: Teachers’ Activities

1. Displays a fresh flower.
2. Identifies the major flower parts.
3. Explains the functions of the flower parts.
4. Defines pollination.
5. Explains self-pollination and cross-pollination.
6. Shows pictures of agents of pollination.

F2: Pupils’ Activities

1. Observe flowers.
2. Identify flower parts.
3. State functions of the flower parts.
4. Explain pollination.
5. Differentiate between self- and cross-pollination.
6. Mention agents of pollination.

G: CONCLUSION

The teacher revises the parts of a flower and the meaning and types of pollination. Pupils are encouraged to observe flowers and insects around plants in their environment.

H: EVALUATION GUIDE

Pupils should be able to answer the following questions:

1. What is reproduction in plants?
2. Mention four main parts of a flower.
3. What is the function of petals?
4. What is pollination?
5. What is self-pollination?
6. What is cross-pollination?
7. Mention three agents of pollination.