Class: Primary Three
Term: Second Term
subject: Basic Science and Technology
Curriculum Theme: Basic Technology
Previous Lesson: Definition of Chemical Energy
Topic: Energy
Content/Learning Area: Uses of Chemical Energy, Examples of chemical energy in action
Time Allocation: 40 minutes

Performance Objectives

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

Cognitive Domain:

– Identify and explain two uses of chemical energy.
– Explain what chemical energy is.- Describe how chemical energy is used to generate electricity.

Psychomotor Domain:

– Demonstrate the process of a simple chemical reaction.

Affective Domain:

– Develop an recognition for the role of chemical energy in daily life.

Social Domain:

– Collaborate in discussing and sharing ideas about chemical energy.

Reference Materials

9 – Years basic education Curriculum
Abuja Educational Resource Center Scheme of Work
NAPPS National Unified Scheme of Work
Online Data
Relevant Textbooks

Instructional Materials

To deliver this lesson, the teacher will use the following materials:

Whiteboard or chart paper
Markers or pens
Pictures or diagrams illustrating chemical energy
simple materials for a demonstration (e.g., baking soda and vinegar)

Rationale for the Lesson

Understanding chemical energy is crucial for pupils to grasp the basic principles of energy change and its role in everyday life.This knowledge forms a foundation for future science lessons and helps them appreciate the world around them.

Prerequisite/previous Knowledge

Pupils are familiar with the concept of energy and its basic forms.

Lesson Content

Uses Of Chemical Energy

Chemical energy is energy stored within the bonds of molecules. When these bonds break, energy is released. This released energy can be used to do work.

What is Chemical Energy?

Chemical energy is stored in the bonds of molecules. Breaking these bonds releases energy for work. Burning wood, for example, breaks chemical bonds, releasing heat and light.

Major Uses of Chemical Energy

Chemical energy is used in various ways to power our daily lives. The following are some major uses of chemical energy:

Heating homes (burning natural gas, propane, oil)
Cooking food (burning gas or electricity)
Running vehicles (burning gasoline or diesel)
Generating electricity (burning coal, natural gas, oil)
Producing light (burning kerosene or propane)
Powering generators (burning petrol or diesel)
Industrial processes (chemical reactions in manufacturing)

Examples of Chemical Energy in Action

Chemical energy is evident in many everyday applications. These include:

Batteries (store chemical energy, release electrical energy)
Food (contains chemical energy for our bodies)
Explosives (contain chemical energy released in rapid reactions)
Fuelwood (used for cooking and heating)
Biogas (produced from organic waste and used for cooking)
petroleum products (used in vehicles and generators)

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion, Demonstration, Question and answer

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 daily energy use and introduce the concept of chemical energy.
Pupils’ Activity: respond to questions and participate in the discussion.

Step 2: Explanation of Key Concepts

Time: 10 minutes
Teaching Skill: Explanation
Teacher’s Activity: explain what chemical energy is and give examples.
Pupils’ Activity: Listen attentively and ask clarifying questions.

Step 3: Demonstration/Guided Practice

Time: 10 minutes
Teaching Skill: Demonstration
Teacher’s Activity: Demonstrate a simple chemical reaction (e.g., baking soda and vinegar) to show the release of chemical energy.
Pupils’ Activity: Observe the demonstration and discuss their observations.

Step 4: Self-Reliant Practice

Time: 5 minutes
Teaching Skill: Guided Practice
Teacher’s activity: Ask pupils to identify examples of chemical energy in their surroundings.
Pupils’ Activity: Identify examples and share their findings.

Step 5: Note-Taking

Time: 5 minutes
Teaching Skill: Note-Taking
Teacher’s Activity: Guide pupils in taking notes on key concepts and examples.
Pupils’ Activity: Take notes on key concepts and examples.

Step 6: Evaluation/Review

Time: 5 minutes
Teaching Skill: Questioning
Teacher’s Activity: Ask review questions to assess understanding.
Pupils’ Activity: Answer review questions.

Step 7: Conclusion

Time: 2 minutes
Teaching Skill: Summarizing
Teacher’s Activity: Summarize the key points of the lesson.
Pupils’ Activity: Listen to the summary and ask any final questions.

Lesson Keywords

Chemical Energy – Energy stored in the bonds of molecules.
Reaction – A process involving the rearrangement of atoms and molecules.
Electricity – A form of energy resulting from the flow of electric charge.
Molecules – A group of atoms bonded together.
Bonds – The forces that hold atoms together in molecules.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

Name two uses of chemical energy.
Explain a simple chemical reaction.
Give examples of chemical energy in action.
How is chemical energy used to generate electricity?
Why is chemical energy crucial in our daily lives?

Assignment/Homework

List five examples of chemical energy used in your home.
Describe how a battery uses chemical energy to power a device.
Research and write a short paragraph on the importance of chemical energy in transportation.

Differentiation

For slower learners: Provide one-on-one assistance and use simpler examples.
For advanced learners: Encourage them to research additional examples of chemical energy and its uses.
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 relevant to the pupils’ habitat to enhance understanding. Encourage active participation and provide constructive feedback.