Class: Primary 4
Term: 3rd Term
Week: 5
Age: 9 years
Duration: 40 minutes
Subject: Basic Science & Technology
Curriculum Theme: Basic Science
Previous Lesson: Water Cycle – Dew
Topic: Water – Chemical Composition
Content/Learning Area
- Chemical composition of water
- Chemical formula of water: H2O
- Hydrogen and Oxygen
Performance Objectives
By the end of the lesson, pupils should be able to:
- Cognitive Domain: Understand the chemical composition and formula of water.
- Affective Domain: Appreciate the importance of water in daily life and its unique composition.
- Psychomotor Domain: Identify and write the chemical formula of water.
- Social Domain: Discuss the significance of water’s composition with peers.
Reference Materials
The following resources were used in planning this lesson:
- 9 – Years Basic Education Curriculum
- Abuja Educational Resource Centre Scheme of work
- NAPPS National Unified Scheme of Work
- Online Information from Water’s Compositions | Idaho Falls, ID
- Relevant Textbooks
Instructional Materials
The teacher will teach this lesson with the aid of:
- Whiteboard and markers
- Models of water molecules
- Interactive slides on the chemical composition of water
Rationale for the Lesson
Understanding the chemical composition of water is crucial for grasping fundamental scientific concepts and appreciating water’s role in our lives and the environment.
Prerequisite/Previous Knowledge
Pupils are expected to have a basic understanding of water and its forms from the previous lesson on the water cycle.
INSTRUCTIONAL PROCEDURES
Learning Area: Water – Chemical Composition
To deliver this lesson, the teacher will adopt the following steps:
| Content Development | Time | Teaching Method | Teaching Strategy | Teacher’s Activity | Pupil’s Activity | Learning Point |
|---|---|---|---|---|---|---|
| Step 1: Introduction | 5 min | Direct Teaching | Question and Answer | Introduce the topic, ask what pupils know about water | Respond to questions, engage in discussion | Setting the stage for new information |
| Step 2: Explaining Chemical Composition | 10 min | Lecture | Visuals and Explanation | Explain H2O, hydrogen, and oxygen, use visual aids | Listen and observe | Understanding water’s chemical makeup |
| Step 3: Writing the Chemical Formula | 10 min | Demonstration | Guided Practice | Write H2O on the board, explain the ratio 2:1 | Write down notes, copy the formula | Learning to express water chemically |
| Step 4: Group Discussion | 5 min | Group Work | Collaborative Learning | Facilitate a discussion on why water is important | Discuss in groups, share thoughts | Social interaction on the topic |
| Step 5: Note Taking | 5 min | Writing | Individual Activity | Instruct pupils to summarize their learning in notes | Write individual summaries | Consolidating knowledge |
| Step 6: Evaluation | 5 min | Questioning | Review | Ask questions about the day’s lesson | Answer questions, demonstrate understanding | Assessing understanding |
| Conclusion | 5 min | Summary | Recap | Summarize key points, preview the next lesson | Listen and ask final questions | Closure and recap of the lesson |
Classroom Note
Chemical Composition of Water
Water is a compound consisting of hydrogen and oxygen chemically bonded together. Like other compounds, the smallest particles of water are called molecules. Each molecule of water contains two atoms of hydrogen and one atom of oxygen.[1]
Chemical Formula of Water
The chemical formula of water is H2O. The “H” stands for hydrogen and “O” for oxygen. The ratio of hydrogen to oxygen in water is 2:1, It shows us that each molecule of water consists of two hydrogen atoms bonded to one oxygen atom. The number ‘2’ next to hydrogen in H2O tells us there are two hydrogen atoms for every one oxygen atom.
Lesson Evaluation
To evaluate the learning, the teacher asks pupils to:
- What is the chemical formula of water?
- Name the two elements that make up water.
- Explain why the chemical formula of water is H2O.
- How many hydrogen atoms are there in one molecule of water?
Note for teachers using my lesson plan:
Hi there, remember that I didn’t make this lesson plan with any particular class or teacher in mind and I tried as much as possible with my experience and expertise to deliver this plan in a standard and effective style utilizing the best strategy and methods. Nevertheless, you are free to customize the lesson content, teaching methods, timing, and pupil activities to suit your teaching style, pupils’ comprehension, curriculum, and resources available to you. Happy teaching!
