Freezing of Water for Primary 4

Class: Primary Four
Term: Third Term
Subject: Basic Science and Technology
Curriculum Theme: Basic Science
Previous Lesson:
Topic: Water (Ice)
Content/Learning Area: What is Freezing?, Water as Ice
Time Allocation: 40 minutes

Performance Objectives

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

• Cognitive Domain:

1. Define freezing and explain the process of freezing water into ice.
2. Affective Domain:
3. Appreciate the importance of ice in daily life and develop curiosity about physical changes.
4. Social Domain:
5. Collaborate with peers to discuss the uses of ice in various cultural and environmental contexts.

Reference Materials

• 9 – Years Basic Education Curriculum
• abuja Educational Resource Center Scheme of Work
• NAPPS National unified Scheme of Work
• Online Facts
• Relevant Textbooks

Instructional Materials

To deliver this lesson, the teacher will employ the help of the following materials:

• Whiteboard or chart
• Markers or chalk
• Pictures of ice in different contexts
• Ice cubes (optional)

Rationale for the Lesson

Understanding freezing and ice properties is crucial for grasping basic scientific principles and lays the groundwork for learning about states of matter and the water cycle.

Prerequisite/Previous Knowledge

Pupils have prior knowledge of water and its liquid state.

Lesson Content

Water (Ice)

Water (Ice) is a engaging topic that explores the conversion of water from a liquid to a solid state.

What is Freezing?

Freezing is the process where a liquid changes into a solid when its temperature drops below its freezing point.

The following are key aspects of freezing:

1. For water, this means turning into ice at 0 degrees Celsius.
2. During freezing, water molecules slow down.
3. Molecules arrange themselves into fixed positions, forming a solid structure.
4. The process is reversible; ice can melt back into water with the addition of heat.

Water as Ice

When water freezes,it expands and becomes ice. This ice is simply water in its solid state.

Examples of the uses for ice include:

1. Cooling drinks: Ice is commonly used to cool beverages, making them more refreshing to drink.
2. Preserving food: Ice helps to preserve food by slowing down the growth of bacteria and preventing spoilage.
3. Ice skating: Ice is essential for ice skating, providing a smooth and slippery surface for gliding.
4. Medical purposes: Ice is used in medical settings to reduce swelling and pain.
5. Creating sculptures: Ice can be carved into intricate sculptures for artistic displays.
6. Fishing: Ice is used to keep the catch fresh.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion, Question and Answer, Presentation (optional).

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: Asks pupils what they no about ice and shows pictures of ice in different forms.
Pupils’ Activity: Respond to the teacher’s questions and observe the pictures.

Step 2: Description of Key Concepts

Time: 10 minutes
Teaching Skill: Explaining
Teacher’s Activity: Explains the process of freezing and how water turns into ice.
Pupils’ Activity: Listen attentively and ask clarifying questions.

Step 3: Demonstration/Guided Practice

Time: 10 minutes
Teaching Skill: Demonstrating
Teacher’s Activity: (Optional) Shows an ice cube and discusses its properties. Asks pupils to describe how ice feels and looks.
Pupils’ Activity: Observe the ice cube (if available) and describe its properties.

Step 4: Self-Reliant Practice

Time: 5 minutes
Teaching Skill: Monitoring
Teacher’s Activity: Guides pupils in answering the evaluation questions.
Pupils’ Activity: Answer the evaluation questions individually.

Step 5: Note-Taking

Time: 5 minutes
Teaching Skill: Note-taking
Teacher’s Activity: Summarizes key points on the board.
Pupils’ Activity: Take notes on key points.

Step 6: Evaluation/Review

Time: 5 minutes
Teaching Skill: Questioning
Teacher’s Activity: Reviews the lesson and answers any remaining questions.
Pupils’ Activity: Participate in the review and ask questions.

Step 7: Conclusion

Time: 5 minutes
Teaching Skill: Summarizing
Teacher’s Activity: Summarizes the key concepts learned and encourages further exploration.
Pupils’ Activity: Listen to the summary and ask any remaining questions.

Lesson Keywords

• Freezing – The process of a liquid turning into a solid.
• Ice – water in its solid state.
• Temperature – A measure of how hot or cold something is.
• Solid – A state of matter with a fixed shape and volume.
• Molecules – The smallest particles of a substance that retain its properties.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

1. What is freezing?
2. Describe how ice feels and looks.
3. List two uses of ice that you discussed today.
4. Explain why ice is critically important in daily life.

Assignment/Homework

1. Research and list three additional uses of ice not discussed in class.
2. Explain what happens to water molecules during the freezing process.
3. Describe an experiment to demonstrate the freezing of water.

Differentiation

• For slower learners: Provide one-on-one assistance and use simpler language.
• For advanced learners: Encourage them to research additional uses of ice 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 demonstrations to make the lesson engaging and understandable for pupils. Encourage active participation and questioning throughout the lesson.