Class: Senior Secondary School 1 (SS1 / SSS 1)
Term: First Term
Week: 1
Age: 15 years
Duration: 45 minutes
Subject: Radio, Tv & Electronics
Curriculum Theme: Trade
Previous Lesson: .
Topic: SOURCES AND PREVENTION OF HAZARDS
Subject Matter: Concepts of safety, Sources of hazards, Electric shock, Damp or wet floor, Wrong handling of tools, Improper workshop dressing, Horse play in the workshop, Safety rules

Specific Objectives

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

Cognitive Domain:

Define safety.
Identify at least three sources of hazards in a workshop.
State at least five safety rules for the workshop.

Affective Domain:

Appreciate the importance of safety in the workshop.
Develop a cautious attitude towards workshop activities.

Psychomotor Domain:

Demonstrate safe handling of at least two workshop tools.
Practice proper workshop dressing.

Encourage peers to follow safety rules.
Work cooperatively to maintain a safe workshop environment.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Radio, TV & Electronics.
State Unified Scheme of Work for Senior Secondary Schools (SSS 1) in Radio, TV & Electronics.
Odunfa, S. A. (2018). Fundamentals of Radio, TV & Electronics for Senior Secondary Schools. Ibadan: Spectrum Books.

Instructional Materials

The teacher will teach this lesson with the aid of:

Safety gloves
Warning signs (e.g., “Wet Floor,” “Danger: High Voltage”)
Fire extinguisher
Insulated tools
Pictures or charts showing safe and unsafe workshop practices.

Rationale for the Lesson

This lesson helps pupils understand the dangers present in a workshop environment. It enables them to identify potential hazards and learn how to prevent accidents, which is important for their well-being and productivity in practical tasks.

Prerequisite/Previous Knowledge

Pupils may have a basic understanding of safety precautions from their homes or general school activities.

Lesson Content/Board Summary

SOURCES AND PREVENTION OF HAZARDS

Concept of Safety

Safety refers to the condition of being protected from danger, risk, or injury. It involves taking measures to prevent harm to oneself and others.

Sources of Hazards in the Workshop

A hazard is anything that has the potential to cause harm, injury, or damage. Common sources of hazards in a workshop include:

Electric shock: Caused by contact with live electrical wires, faulty equipment, or improper wiring.
Damp or wet floor: Can lead to slips, falls, and increase the risk of electric shock when combined with electrical equipment.
Wrong handling of tools: Improper use of hand or power tools can result in cuts, punctures, bruises, or other injuries.
Improper workshop dressing: Wearing loose clothing, open-toed shoes, or jewelry can lead to entanglement in machinery or other accidents.
Horseplay in the workshop: Engaging in rough play, running, or distracting others can cause serious accidents and injuries.

Safety Rules in the Workshop

To prevent accidents and ensure a safe working environment, the following safety rules should be observed:

Always wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and closed-toe shoes.
Keep the workshop clean and tidy; ensure floors are dry and free of obstacles.
Use tools correctly and only for their intended purpose.
Report any faulty equipment, damaged wires, or unsafe conditions to the teacher immediately.
Avoid horseplay, running, or shouting in the workshop.
Do not work alone in the workshop, especially with electrical equipment.
Ensure proper ventilation when working with chemicals or fumes.
Know the location of safety equipment such as fire extinguishers and first-aid kits.

Teaching Methods/Instructional Techniques

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

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction
Teacher’s Activity: The teacher greets the pupils, reminds them of the importance of safety in daily life, and introduces the topic by asking them to mention some dangers they might encounter in a workshop.
Pupils’ Activity: Pupils respond to the teacher’s questions and listen attentively.
Learning Point: Pupils are prepared for the lesson and understand its relevance.

Step 2: Explanation of Safety

Time: 7 minutes
Teaching Skill: Explanation/Definition
Teacher’s Activity: The teacher defines “safety” and explains why it is important in a workshop setting, emphasizing prevention of harm.
Pupils’ Activity: Pupils listen, take notes, and ask questions for clarification.
Learning Point: Pupils understand the concept of safety.

Step 3: Discussion of Sources of Hazards

Time: 10 minutes
Teaching Skill: Elucidation/Listing
Teacher’s Activity: The teacher explains various sources of hazards in a workshop, such as electric shock, wet floors, improper tool handling, and horseplay, using examples and the instructional materials (pictures, warning signs).
Pupils’ Activity: Pupils identify and discuss different hazards, relating them to their own experiences or observations.
Learning Point: Pupils can identify potential dangers in a workshop.

Step 4: Demonstration of Safe Practices

Time: 8 minutes
Teaching Skill: Demonstration/Modeling
Teacher’s Activity: The teacher demonstrates the correct handling of some tools, proper use of safety gloves, and emphasizes appropriate workshop dressing. The teacher also shows the fire extinguisher and explains its basic use.
Pupils’ Activity: Pupils observe the demonstrations and ask questions about safe practices.
Learning Point: Pupils observe and learn safe work habits.

Step 5: Elaboration on Safety Rules

Time: 5 minutes
Teaching Skill: Explanation/Enumeration
Teacher’s Activity: The teacher discusses the various safety rules that must be followed in the workshop, explaining the reason behind each rule.
Pupils’ Activity: Pupils listen and contribute to the discussion by suggesting additional safety rules.
Learning Point: Pupils understand the rules for maintaining a safe workshop environment.

Step 6: Pupils’ Practical Application

Time: 5 minutes
Teaching Skill: Practical Application
Teacher’s Activity: The teacher asks pupils to demonstrate proper workshop dressing and handling of a non-powered tool, or to identify safety signs.
Pupils’ Activity: Pupils actively participate by demonstrating safe practices.
Learning Point: Pupils apply learned safety concepts practically.

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

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

What is safety?
Mention three sources of hazards in a workshop.
State five safety rules you must observe in the workshop.
Why is it important to wear appropriate clothing in a workshop?

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 0 minutes
Teacher’s Activity: The teacher summarizes the key points of the lesson, reiterating the importance of safety. The teacher then assigns homework: “List five safety devices found in a typical electronics workshop and state their uses.”
Pupils’ Activity: Pupils listen to the summary and copy down the homework.
Learning Point: The lesson is reinforced, and pupils are given an opportunity for further practice.

Lesson Keywords

Safety – The condition of being protected from danger, risk, or injury.
Hazard – Anything that has the potential to cause harm, injury, or damage.
Electric shock – An injury caused by contact with an electric current.
Workshop – A room or building where goods are manufactured or repaired, or where manual work is done.
Prevention – The action of stopping something from happening or arising.

Differentiation

The teacher will provide additional support to pupils who require it through simplified explanations and one-on-one guidance. Advanced pupils will be encouraged to research and present on specific types of workshop accidents and their prevention.

Note for teachers using this lesson plan

Teachers should ensure that all instructional materials, especially safety devices, are readily available and in good working condition before the lesson. Emphasize practical demonstrations and involve pupils actively to reinforce learning. Encourage a culture of safety awareness in the workshop at all times.