Class: Senior Secondary School 1 (SS1 / SSS 1)
Term: 1st Term
Week: 3
Age: 15 years
Duration: 45 minutes
Subject: Refrigeration And Air Conditioning
Curriculum Theme: Trade
Previous Lesson: Safety In The Workshop: Safety Devices and Equipment.
Topic: Safety in the workshop: Dressing code in the workshop
Subject Matter: Dressing code, personal protective equipment, hygiene, safe conduct

Specific Objectives

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

Cognitive Domain:

Define workshop dressing code.
List at least four types of Personal Protective Equipment (PPE).
State the importance of good hygiene in the workshop.
Explain at least two rules for safe conduct in the workshop.

Affective Domain:

Appreciate the importance of safety measures in the workshop.
Value the use of appropriate dressing and protective gear.
Develop a positive attitude towards maintaining a safe working environment.

Psychomotor Domain:

Demonstrate proper workshop dressing.
Identify various Personal Protective Equipment (PPE) items.

Encourage peers to adhere to workshop safety rules and dressing codes.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Basic Technology (Senior Secondary Education)
State Unified Scheme of Work for Refrigeration and Air Conditioning (SS1)
Refrigeration and Air Conditioning for Senior Secondary Schools, Book 1
https://www.oshainfo.com/workshop-safety
https://www.safetymanual.com/ppe-guidelines

Instructional Materials

The teacher will teach this lesson with the aid of:

Overalls
Safety gloves
Safety boots
Safety goggles
A chart showing different types of Personal Protective Equipment (PPE)
Whiteboard and markers

Rationale for the Lesson

This lesson helps pupils understand the importance of safety in the workshop, especially regarding dressing and conduct. Knowing and applying these rules helps prevent accidents and injuries, ensuring a safe learning and working environment for everyone.

Prerequisite/Previous Knowledge

Pupils are expected to have basic knowledge of general workshop rules and the importance of discipline in a practical learning environment.

Lesson Content/Board Summary

Safety in the Workshop: Dressing Code and Personal Protective Equipment

Workshop Dressing Code

Workshop dressing code refers to the specific attire and appearance required for individuals working in a workshop environment to ensure their safety and prevent accidents.

The following are general rules for workshop dressing:

Wear appropriate work clothing (e.g., overalls, work coats).
Avoid loose clothing, ties, or jewellery that can get caught in machinery.
Tie back long hair to prevent entanglement.
Wear closed-toe shoes, preferably safety boots, to protect feet.

Personal Protective Equipment (PPE)

Personal Protective Equipment (PPE) consists of clothing, helmets, goggles, or other garments or equipment designed to protect the wearer’s body from injury or infection.

The following are common types of PPE in a refrigeration and air conditioning workshop:

Safety Goggles/Face Shields: Protect eyes and face from flying debris, chemicals, or intense light.
Safety Gloves: Protect hands from cuts, abrasions, chemicals, and extreme temperatures.
Safety Boots/Shoes: Protect feet from falling objects, punctures, and electrical hazards.
Ear Plugs/Muffs: Protect ears from excessive noise.
Overalls/Work Aprons: Protect clothing and skin from dirt, oils, and minor splashes.
Respirators/Masks: Protect against inhaling harmful fumes, dust, or particles.

The importance of using PPE includes:

Preventing injuries to the eyes, hands, feet, and other body parts.
Reducing exposure to hazardous materials and substances.
Complying with safety regulations and standards.
Ensuring a safer working environment.

Hygiene in the Workshop

Workshop hygiene involves maintaining cleanliness and good health practices within the workshop to prevent the spread of diseases and ensure a healthy working environment.

The importance of hygiene in the workshop includes:

Preventing skin irritations and infections from contact with chemicals or dirt.
Reducing the risk of illness from contaminated surfaces.
Promoting a professional and organised workspace.
Ensuring tools and equipment remain clean and functional.

Good hygiene practices include:

Washing hands thoroughly after working and before eating.
Keeping the workspace clean and tidy.
Disposing of waste materials properly.
Avoiding eating or drinking in the immediate work area.

Safe Conduct in the Workshop

Safe conduct refers to behaving in a manner that minimises risks and ensures the safety of oneself and others in the workshop environment.

The following are rules for safe conduct in the workshop:

Always follow instructions from the teacher or supervisor.
Never run or engage in horseplay in the workshop.
Report any accidents, spills, or faulty equipment immediately.
Use tools and equipment only for their intended purpose.
Do not distract others while they are working.
Keep exits and walkways clear of obstructions.

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 and asks them what they think is the most important thing to consider before starting any practical work in a workshop. The teacher then tells them that today’s lesson will focus on safety, specifically dressing code and personal protective equipment.
Pupils’ Activity: Pupils respond to the question and listen attentively to the teacher.
Learning Point: Pupils are introduced to the topic of workshop safety.

Step 2: Workshop Dressing Code

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher defines workshop dressing code and explains its importance. The teacher then demonstrates appropriate workshop attire using the provided overalls, safety boots, and by tying back long hair (if applicable or simulated). Pupils are asked to observe and identify elements of proper dressing.
Pupils’ Activity: Pupils observe the demonstration, identify elements of proper dressing, and ask questions.
Learning Point: Pupils understand and can identify proper workshop dressing.

Step 3: Personal Protective Equipment (PPE)

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher defines PPE and explains its purpose. The teacher then presents various PPE items (gloves, goggles, boots) and demonstrates their correct use. The teacher also uses a chart to show other types of PPE and their applications in a refrigeration and air conditioning workshop.
Pupils’ Activity: Pupils observe the PPE items and their demonstrations, identifying different types and their uses.
Learning Point: Pupils identify and understand the function of various PPE items.

Step 4: Hygiene and Safe Conduct

Time: 7 minutes
Teaching Skill: Discussion
Teacher’s Activity: The teacher leads a discussion on the importance of hygiene in the workshop, listing good practices. The teacher also discusses rules for safe conduct, encouraging pupils to share examples of safe behaviours and the consequences of unsafe ones.
Pupils’ Activity: Pupils participate in the discussion, sharing ideas on hygiene and safe conduct.
Learning Point: Pupils understand the importance of hygiene and safe conduct in the workshop.

Step 5: Practical Application/Reinforcement

Time: 5 minutes
Teaching Skill: Practical Application
Teacher’s Activity: The teacher asks individual pupils to come forward and demonstrate wearing specific PPE items correctly (e.g., putting on safety gloves, goggles). The teacher provides feedback and guidance.
Pupils’ Activity: Pupils practice wearing PPE and demonstrate understanding of the dressing code.
Learning Point: Pupils apply their knowledge of dressing code and PPE practically.

Step 6: Evaluation/Review

Time: 5 minutes
Teaching Skill: Questioning/Assessment
Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

Define workshop dressing code.
List four examples of Personal Protective Equipment (PPE).
State two reasons why good hygiene is important in the workshop.
Mention two rules for safe conduct in the workshop.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 7: Conclusion

Time: 3 minutes
Teaching Skill: Summarisation
Teacher’s Activity: The teacher summarises the key points of the lesson, reiterating the importance of always observing safety rules, proper dressing, using PPE, maintaining hygiene, and practicing safe conduct in the workshop. The teacher assigns homework: “Draw and label four types of PPE you would use in a refrigeration workshop.”
Pupils’ Activity: Pupils listen to the summary and copy down the homework.
Learning Point: Pupils consolidate their learning and receive an assignment.

Lesson Keywords

Dressing Code – Specific rules for clothing and appearance in a workshop for safety.
Personal Protective Equipment (PPE) – Gear worn to protect against hazards in the workplace.
Hygiene – Practices that maintain health and prevent the spread of disease, especially cleanliness.
Safe Conduct – Behaving in a way that avoids danger or risk in the workshop.

Differentiation

For pupils who grasp concepts quickly, the teacher can encourage them to research additional safety measures or types of PPE specific to refrigeration and air conditioning. For pupils who require more support, the teacher will provide more one-on-one guidance during the practical demonstration and simplified explanations, possibly using visual aids extensively.

Note for teachers using this lesson plan

Ensure all instructional materials, especially PPE, are readily available and in good condition for demonstration. Emphasise practical application and active participation from pupils. Encourage a culture of reporting unsafe conditions or practices immediately. Safety is paramount and should be reinforced consistently.