Class: Senior Secondary School 1 (SS1 / SSS 1)
Term: 2nd Term
Week: 3
Age: 15 years
Duration: 45 minutes
Subject: Dying and Bleaching
Curriculum Theme: Trade
Previous Lesson: Sourcing and Labeling Dyeing Materials.
Topic: SAFETY TIPS AFTER DYING
Subject Matter: washing of hands after dyeing, rubbing grease or pomade after dyeing, protecting hands from direct chemical contact, cleaning up the work area after dyeing

Specific Objectives

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

Cognitive Domain:

Define safety tips after dyeing.
State the importance of safety measures when handling dyeing chemicals.
List ways to protect hands from direct chemical contact after dyeing.

Affective Domain:

Appreciate the need for personal safety in practical work.
Develop a habit of cleaning the work environment after practical activities.
Show responsibility in applying safety measures.

Psychomotor Domain:

Demonstrate the proper washing of hands after dyeing.
Apply pomade or grease to protect skin after dyeing.
Properly clean and arrange the work area after dyeing.

Promote a culture of safety and hygiene within the classroom and workshop.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Cultural and Creative Arts (CCA)
State Unified Scheme of Work for Senior Secondary School 1 (Dyeing and Bleaching)
Akinwumi, T. (2018). Practical Dyeing and Bleaching for Senior Secondary Schools. Lagos: Educational Publishers.
https://www.who.int/campaigns/hand-hygiene-day
https://www.osha.gov/chemical-safety

Instructional Materials

The teacher will teach this lesson with the aid of:

Soap and water
Hand towel
Pomade or grease
Waste bin
Cleaning materials (rags, bucket)

Rationale for the Lesson

This lesson helps pupils understand the importance of safety practices after engaging in dyeing activities. It enables them to prevent skin irritation and ensure a clean and safe learning environment, which is important for their health and well-being.

Prerequisite/Previous Knowledge

Pupils have previously learned about the basic processes and materials involved in dyeing and bleaching.

Lesson Content/Board Summary

Safety Tips After Dyeing

1. Washing of Hands After Dyeing

This involves thoroughly cleaning hands with soap and water immediately after completing the dyeing process. This action helps to remove any chemical residue that may have come into contact with the skin.

The importance of washing hands after dyeing includes:

Preventing skin irritation, dryness, and allergic reactions.
Avoiding the transfer of chemicals to other parts of the body or to food items.
Maintaining personal hygiene and preventing the spread of contaminants.

2. Rubbing Grease or Pomade After Dyeing

After hands have been washed and dried, it is advisable to apply a protective layer of grease, petroleum jelly, or pomade to the skin. This helps to moisturize the skin and create a barrier against potential lingering chemical effects or excessive dryness.

The benefits of applying grease or pomade are:

Moisturizing and rehydrating the skin.
Providing a protective barrier against irritants.
Preventing dryness, cracking, or irritation of the skin.

3. Protecting Hands from Direct Chemical Contact

While wearing gloves during the dyeing process is a primary protective measure, it is also important to ensure hands are protected from any residual chemicals after the activity. This means avoiding touching dyed materials or surfaces that may still have chemical traces with bare hands.

Ways to protect hands from direct chemical contact include:

Always wearing appropriate protective gloves during the dyeing process.
Using tools or implements to handle dyed materials rather than bare hands.
Washing hands thoroughly and immediately if accidental contact with chemicals occurs.

4. Cleaning Up the Work Area After Dyeing

It is essential to clean the work area immediately after completing any dyeing activity. This involves tidying up equipment, disposing of waste properly, and wiping down all surfaces to ensure a safe and organized environment.

Steps for cleaning up the work area include:

Gathering all dyeing tools and materials.
Disposing of chemical waste, leftover dyes, and contaminated cloths in a designated waste bin.
Wiping down all work surfaces, benches, and floors with appropriate cleaning agents to remove spills and residues.
Washing and storing reusable equipment properly.
Ensuring the area is dry and free from any potential hazards.

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, reviews the previous lesson on dyeing processes, and asks pupils about common dangers associated with handling chemicals. The teacher then introduces the topic: “Safety Tips After Dyeing.”
Pupils’ Activity: Pupils respond to questions and listen attentively to the introduction of the new topic.
Learning Point: Pupils recall previous knowledge and are prepared for the new lesson.

Step 2: Explanation of Washing Hands After Dyeing

Time: 10 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher explains the importance of washing hands thoroughly with soap and water after dyeing. The teacher may demonstrate the correct hand-washing technique if resources allow.
Pupils’ Activity: Pupils listen, observe the demonstration, and ask questions for clarification.
Learning Point: Pupils understand the necessity and method of washing hands after dyeing.

Step 3: Discussion on Rubbing Grease or Pomade

Time: 8 minutes
Teaching Skill: Discussion/Questioning
Teacher’s Activity: The teacher discusses why applying grease or pomade to hands after washing is beneficial, highlighting its role in skin protection and moisturizing.
Pupils’ Activity: Pupils contribute to the discussion, share their experiences, and understand the protective function of pomade.
Learning Point: Pupils learn about protecting their skin from dryness and irritation after chemical exposure.

Step 4: Emphasizing Protection from Direct Chemical Contact

Time: 7 minutes
Teaching Skill: Explanation
Teacher’s Activity: The teacher explains the continuous need for protecting hands from direct chemical contact, even after the main dyeing process, reinforcing the use of gloves and tools.
Pupils’ Activity: Pupils listen and understand the importance of consistent hand protection.
Learning Point: Pupils learn about ongoing measures to prevent chemical contact.

Step 5: Instruction on Cleaning Up the Work Area

Time: 10 minutes
Teaching Skill: Instruction/Demonstration
Teacher’s Activity: The teacher explains and demonstrates the proper steps for cleaning up the work area, including waste disposal, wiping surfaces, and organizing tools. The teacher emphasizes the importance of a clean and safe environment.
Pupils’ Activity: Pupils observe, take notes, and ask questions about proper cleanup procedures.
Learning Point: Pupils learn how to maintain a clean and safe workspace after practical activities.

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 what is meant by safety tips after dyeing.
State two reasons why it is important to wash hands thoroughly after dyeing.
Mention two benefits of rubbing grease or pomade on hands after dyeing.
List three steps involved in cleaning up the work area after dyeing.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 7: Conclusion

Time: 5 minutes
Teaching Skill: Summarization
Teacher’s Activity: The teacher summarizes the key safety tips discussed and reminds pupils about their responsibility in maintaining safety and hygiene. The teacher assigns homework: research other safety precautions for handling chemicals in the workshop.
Pupils’ Activity: Pupils listen to the summary and copy down the homework.
Learning Point: Pupils consolidate their understanding of the lesson and are given follow-up tasks.

Lesson Keywords

Dyeing – The process of adding colour to textiles or materials.
Chemicals – Substances used in dyeing that can be harmful if not handled properly.
Safety Tips – Guidelines or advice to prevent harm or danger.
Hygiene – Practices that help to maintain health and prevent the spread of disease, especially through cleanliness.
Pomade – A greasy, waxy, or oily substance used to protect or moisturize the skin.

Differentiation

For pupils who grasp concepts quickly, the teacher can encourage them to research and present additional safety measures or first aid for chemical splashes. For pupils needing more support, the teacher can provide simplified handouts with pictorial representations of the safety steps and offer one-on-one guidance during practical demonstrations.

Note for teachers using this lesson plan

Ensure all instructional materials, especially soap, water, and cleaning supplies, are available before the lesson. Emphasize practical demonstration and encourage active participation from pupils. Stress the real-life implications of these safety tips for their health and future careers in trade.