Water Cycle, Dew for Primary 4

Class: Primary Four
Term: Third Term
Subject: Basic Science and technology
Curriculum Theme: Basic Science
Previous Lesson:
Topic: Water Cycle – Dew
Content/Learning Area: Define dew and explain how dew is formed, Show recognition for the role of dew in the natural surroundings, Illustrate the process of dew formation on a diagram, Collaborate in groups too discuss the importance of dew in ecosystems
Time Allocation: 40 minutes

Performance Objectives

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

• Cognitive Domain:

1. Define dew and explain how it is indeed formed.
2. Illustrate the process of dew formation using a diagram.
3. Explain the importance of dew in ecosystems.
4. Psychomotor Domain:
5. Draw a diagram showing the process of dew formation.
6. Affective Domain:
7. Show appreciation for the role of dew in the natural environment.
8. Social Domain:
9. Collaborate in groups to discuss the importance of dew in ecosystems.

Reference Materials

• 9 – Years Basic Education Curriculum
• Abuja Educational Resource Center Scheme of Work
• NAPPS National Unified Scheme of Work
• online Details
• Relevant textbooks

Instructional Materials

To deliver this lesson, the teacher will use the following materials: Whiteboard or chart paper, Markers or crayons, Pictures or illustrations of dew formation, Worksheet with evaluation questions.

Rationale for the Lesson

Understanding the water cycle is crucial for environmental awareness.This lesson on dew helps pupils grasp a key part of the water cycle and appreciate the natural processes around them. This knowledge will be built upon in future science lessons.

Prerequisite/Previous Knowledge

The teacher will start by asking pupils what they notice on the grass or leaves early in the morning. This will lead into a discussion about dew and its formation,sparking curiosity and setting the stage for the lesson.

Lesson Content

Water Cycle – Dew

Dew is a common sight in the early morning or evening. It’s the tiny water droplets we see on surfaces like grass and leaves.

What is Dew?

Dew is water that has condensed from the air onto a surface. Condensation is when water vapor in the air changes into liquid water.

Formation of Dew

Dew forms through a process involving air moisture and temperature changes. The following are the steps in the formation of dew:

1. Warm air holds moisture: During the day,the sun warms the air,allowing it to hold lots of water vapor.
2. Cooling at night: As the sun sets, the air cools down.
3. Condensation: When the air cools enough, it can’t hold all the water vapor. The extra water vapor becomes liquid water droplets.
4. Dew formation: These droplets form on cooler surfaces, like grass and leaves.

It’s like when a cold drink gets water droplets on the outside; the cold glass cools the air, causing condensation.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Explanation, Discussion, Presentation, Group work.

Instructional Procedures

To deliver this lesson, the teacher will adopt the following steps:

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: Ask pupils about their observations of dew in the morning. Introduce the topic: Water Cycle – Dew.
Pupils’ Activity: Share their observations and listen to the introduction.

Step 2: Explanation of Key Concepts

Time: 10 minutes
Teaching Skill: Explanation, Definition
Teacher’s Activity: explain what dew is and how it forms using simple language and examples.
Pupils’ Activity: Listen attentively and ask clarifying questions.

Step 3: Presentation/Guided Practice

Time: 10 minutes
Teaching Skill: Demonstration, Guided Practice
Teacher’s Activity: Demonstrate the process of dew formation using a diagram or illustration.Guide pupils in drawing their own diagrams.
Pupils’ Activity: Observe the demonstration and draw their own diagrams.

Step 4: Independent Practice

time: 5 minutes
Teaching Skill: Independent practice
Teacher’s Activity: Provide pupils with a worksheet containing evaluation questions.
Pupils’ Activity: Answer the questions independently.

Step 5: Note-Taking

Time: 5 minutes
Teaching Skill: Note-Taking
Teacher’s Activity: Guide pupils in summarizing key points of the lesson.
Pupils’ Activity: Take notes on key concepts and definitions.

Step 6: Evaluation/Review

Time: 5 minutes
Teaching Skill: Questioning,Review
Teacher’s Activity: Review the answers to the evaluation questions and clarify any misconceptions.
Pupils’ Activity: Participate in the review and ask questions.

Objective-aligned checks:

1. Define dew and explain how it is indeed formed.
2. Explain the importance of dew in ecosystems.
3. Draw a diagram showing the process of dew formation.

Step 7: Conclusion

Time: 5 minutes
Teaching Skill: summarization
Teacher’s activity: Summarize the key concepts of dew formation and its importance, emphasizing the connection to the broader water cycle. Encourage pupils to continue observing dew in their surroundings.
Pupils’ Activity: Listen to the summary and ask any remaining questions.

Lesson Keywords

• Dew – Water droplets formed by condensation on surfaces.
• Condensation – The process of water vapor turning into liquid.
• Water Vapor – Water in its gaseous form.
• Water Cycle – The continuous movement of water on, above, and below the surface of the Earth.
• Evaporation – The process of a liquid turning into a gas.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

1. What is dew?
2. How is dew formed?
3. Why is dew critically crucial for plants?
4. Can you give other examples of condensation?
5. how does dew help the water cycle?

Assignment/homework

1. Draw a detailed diagram illustrating the formation of dew.
2. Write a short paragraph explaining the importance of dew in the environment.
3. Observe and record the presence of dew in your surroundings for a week, noting the weather conditions each day.

Differentiation

• For slower learners: Provide one-on-one assistance and simplified explanations.
• For advanced learners: Encourage them to research further into the water cycle and present their findings to the class.
• For visual/auditory/kinesthetic learners: Use visual aids, verbal explanations, and hands-on activities to cater to different learning styles.

Note for Teachers

Ensure to use real-life examples and visual aids to enhance pupils’ understanding of dew formation. encourage active participation and questioning throughout the lesson.