Detailed Lesson Note
Subject: Basic Science
Class: JSS1 (Grade 7)
Duration: 40 minutes
Week: Ten
Topic: Environmental Conservation and Safety
Sub-topic: Meaning of Environmental Conservation and Balance; Sun as the
Primary Source of Energy to the Earth
Date: To be inserted by teacher
Period:
Instructional
Objectives
By the end of the lesson, students
should be able to:
- Define environmental conservation and state one reason
why it is important. (Lower cognitive domain – Knowledge)
- Explain how the sun serves as the primary source of
energy to the earth, giving at least two examples. (Middle cognitive
domain – Comprehension/Application)
Instructional
Materials
- Chart of the environment (trees, rivers, animals,
houses, etc.)
- Diagram of the solar system with the sun at the center
- Flashcards with keywords (Conservation, Balance,
Energy, Sun)
- Chalkboard/marker
Reference
Materials
- JSS1 Basic Science Textbook
- Teacher’s Lesson Notes
Lesson
Development
Step
1: Introduction (5 minutes)
Teacher’s Activities
- Greets students and ensures the class is settled.
- Asks a lead-in question: “What do you think will
happen if we cut down all the trees in our environment?”
- Records students’ answers on the board (e.g., no shade,
erosion, animals lose homes).
- Introduces the topic: Environmental Conservation and
Safety.
Students’ Activities
- Respond to the teacher’s question.
- Listen attentively to the introduction.
Step
2: Presentation (25 minutes)
Part
A: Meaning of Environmental Conservation and Balance (10 minutes)
Teacher’s Activities
- Defines environment as everything around us – air,
water, soil, plants, animals, and people.
- Explains conservation as protecting and wisely
using natural resources so that they do not finish or get damaged.
- Defines environmental balance as keeping the
natural environment in a way that allows all living and non-living things
to exist peacefully.
- Gives examples: planting trees after cutting them down,
avoiding bush burning, reducing waste, and protecting wild animals.
Students’ Activities
- Listen to teacher’s explanations.
- Mention ways they protect the environment (e.g.,
sweeping compound, planting flowers, not littering).
Part
B: Sun as the Primary Source of Energy (15 minutes)
Teacher’s Activities
- Explains that the sun is the main source of energy
on earth because it provides light and heat.
- States examples:
- Plants use sunlight to make food (photosynthesis).
- Sunlight dries clothes and farm produce.
- The sun warms the earth and gives heat to humans and
animals.
- Solar panels change sunlight into electricity.
- Shows a diagram of the sun in the solar system.
- Asks students: “What are some things you use
sunlight for at home?”
Students’ Activities
- Listen carefully to the teacher.
- Observe the diagram of the sun.
- Mention uses of sunlight in their homes (drying
clothes, warming the body, drying crops like cassava or pepper).
Step
3: Evaluation (7 minutes)
Teacher’s Questions
- What is environmental conservation?
- State one importance of environmental conservation.
- What is environmental balance?
- Why is the sun called the primary source of energy to
the earth?
- Mention two examples of how the sun provides energy to
living things.
Students’ Activities
- Answer the questions orally in class.
Step
4: Conclusion (3 minutes)
Teacher’s Activities
- Summarizes the lesson:
- Environmental conservation means protecting natural
resources.
- Environmental balance keeps nature in order for all
living and non-living things.
- The sun is the main source of energy to the earth.
- Encourages students to always protect their
environment.
Students’ Activities
- Listen attentively to the summary.
- Take down short notes in their exercise books.
Assignment
List five ways you and your
family can conserve the environment at home.
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