Class: Primary 6
Term: 3rd Term
Week: 10
Age: 12 years
Duration: 40 minutes
Subject: Basic Science & Technology
Curriculum Theme: Basic Science
Previous Lesson: Importance of Mineral Resources to Nigeria.
Topic: Over-exploitation of Mineral Resources and Conservation of Natural Resources
Subject Matter: Consequences of over-exploitation of mineral resources in Nigeria and conservation of natural resources and environmental quality

Specific Objectives

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

Cognitive Domain:

Define over-exploitation of mineral resources.
Mention five consequences of over-exploitation of mineral resources in Nigeria.
Explain the meaning of natural resources.
Explain how a quality environment can be achieved through conservation.

Affective Domain:

Show concern for environmental damage caused by overuse of resources.
Value the need to conserve natural and mineral resources.

Psychomotor Domain:

List conservation practices correctly in written form.
Sort picture examples into harmful practices and conservation practices.

Work cooperatively in groups to discuss conservation methods.
Participate in class discussion on protecting the environment.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum (Basic Science & Technology).
State Unified Scheme of Work (Primary 6, 3rd Term).
Basic Science & Technology for Primary Schools textbook, Units 8.3 and 8.4.
Links for Refrence materials: [links_not_provided]

Instructional Materials

The teacher will teach this lesson with the aid of:

Textbook pages showing consequences of over-exploitation and conservation practices.
Charts/pictures of erosion, oil spillage, pollution, and conservation activities.
Flashcards listing conservation methods.
Whiteboard/marker or chalkboard/chalk.

Rationale for the Lesson

This lesson helps pupils understand how excessive use of mineral resources can harm the environment and people’s livelihood. It also teaches practical ways to conserve resources for a safe and healthy environment.

Prerequisite/Previous Knowledge

Pupils are familiar with mineral and natural resources and their uses.

Lesson Content/Board Summary

Consequences of Over-exploitation and Conservation of Natural Resources

Meaning of Over-exploitation of Mineral Resources

Over-exploitation of mineral resources is the excessive or careless use of mineral resources beyond safe limits, leading to environmental and economic problems.

Consequences of Over-exploitation of Mineral Resources in Nigeria

The following are consequences of over-exploitation of mineral resources:

Mining activities can lead to soil erosion.
Environmental pollution such as oil spillage may destroy plants and animals and make water unsafe for drinking.
Increase in the risk of sabotage and vandalization of industries.
Irregularities in international market prices of mineral resources.
Loss of interest in agriculture as attention shifts mainly to mineral resources.

Meaning of Natural Resources and Conservation

Natural resources are materials provided by nature such as water, land, forests, and minerals. Conservation is the protection and careful use of these resources to prevent loss, damage, or exhaustion.

Conservation Practices for Environmental Quality

The following are ways conservation helps achieve a quality environment:

Water conservation: Avoid wasting water, repair leaking pipes, recycle used water, and prevent dumping waste in water bodies.
Forest conservation: Plant trees, avoid bush burning, stop uncontrolled tree felling, recycle paper, and establish forest reserves.
Soil conservation: Control erosion through terracing, windbreaks, vegetative cover, mulching, crop rotation, and tree planting.
Wildlife conservation: Avoid excessive hunting, reduce harmful chemicals, rear animals, and establish game reserves.
Mineral conservation: Reduce energy use from petroleum and coal, and prevent oil spillage.

Teaching Methods/Instructional Techniques

Discussion, Lecture, Demonstration, Question and Answer, Visual Aids

Instructional Procedures

Step 1: Introduction

Time: 4 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher asks pupils to recall how minerals are used and introduces the idea that misuse can cause harm. The lesson topic is stated.
Pupils’ Activity: Pupils respond and listen to the lesson focus.
Learning Point: Overuse of mineral resources can cause environmental problems.

Step 2: Meaning of Over-exploitation

Time: 5 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher explains over-exploitation and writes the definition on the board.
Pupils’ Activity: Pupils listen and copy the definition.
Learning Point: Over-exploitation is excessive use of mineral resources.

Step 3: Consequences of Over-exploitation

Time: 10 minutes
Teaching Skill: Discussion
Teacher’s Activity: The teacher presents the listed consequences using textbook examples and pictures.
Pupils’ Activity: Pupils identify and write the consequences.
Learning Point: Over-exploitation leads to erosion, pollution, vandalism risk, price instability, and neglect of agriculture.

Step 4: Meaning of Natural Resources and Conservation

Time: 5 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher explains natural resources and conservation using board notes.
Pupils’ Activity: Pupils listen and record the points.
Learning Point: Conservation protects natural resources.

Step 5: Conservation Practices

Time: 6 minutes
Teaching Skill: Demonstration
Teacher’s Activity: The teacher discusses water, forest, soil, wildlife, and mineral conservation practices using charts.
Pupils’ Activity: Pupils match conservation methods with resources.
Learning Point: Conservation practices help maintain environmental quality.

Step 6: Group Activity

Time: 4 minutes
Teaching Skill: Cooperative Learning
Teacher’s Activity: Groups list conservation practices and present briefly.
Pupils’ Activity: Pupils work together and present findings.
Learning Point: Conservation requires collective effort.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

Define over-exploitation of mineral resources.
Mention five consequences of over-exploitation of mineral resources in Nigeria.
Explain the meaning of natural resources.
State how conservation helps achieve a quality environment.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 1 minute
Teaching Skill: Summary
Teacher’s Activity: The teacher summarizes key points and assigns pupils to write five conservation practices.
Pupils’ Activity: Pupils listen and copy the assignment.
Learning Point: Conservation protects resources and improves environmental quality.

Home Task: Record two correct examples of Over-exploitation of Mineral Resources and Conservation of Natural Resources from the lesson or home environment and explain each in your own words.

Lesson Keywords

Over-exploitation – Excessive use of mineral resources.
Conservation – Protection and careful use of resources.
Pollution – Contamination of the environment.
Erosion – Wearing away of soil.
Environmental quality – Healthy condition of the environment.

Differentiation

Faster learners explain conservation examples in sentences, while learners needing support list key points with teacher guidance.

Note for teachers using this lesson plan

Use real-life examples of pollution and conservation from the community. Keep explanations short and focus on clear lists drawn from the textbook.