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Effects Of Shaving The Hair With Unsterilized Instruments for Primary 3

This lesson on effects of shaving the hair with unsterilized instruments for Primary 3 teaches pupils the dangers of using dirty barbing tools, their health risks, and safe practices for preventing infections.

Royal AlikorByRoyal AlikorPublishedSep 8, 2025Reading5 minComments0

Class: Primary 3
Term: 1st Term
Week: 6
Age: 8 years
Duration: 40 minutes
Subject: Pre Vocational Studies
Curriculum Theme: Home Economics
Previous Lesson: Types of Care Of The Hair
Topic: Effects Of Shaving The Hair With Unsterilized Instruments
Content/Learning Area: Effects of shaving with unsterilized instrument when barbing the hair….


Performance Objectives

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

  • Cognitive Domain: Explain the meaning of unsterilized instruments.
  • Affective Domain: Show concern for safe and clean personal grooming.
  • Psychomotor Domain: Identify examples of sterilized and unsterilized instruments.
  • Social Domain: Demonstrate the importance of avoiding unsafe barbing practices.

Reference Materials

The following resources were used in planning this lesson:

  • 9 Years Basic Education Curriculum
  • Abuja Educational Resource Centre Scheme of work
  • NAPPS National Unified Scheme of Work
  • Online information from: Wikipedia – Sterilization
  • Relevant Textbooks

Instructional Materials

The teacher will teach this lesson with the aid of:

  • Pictures or posters of barbing salons
  • Samples of clippers, razors, and combs
  • A sterilizer or spirit (disinfectant) bottle
  • Chart showing infections caused by unsterilized tools
  • Whiteboard and marker

Rationale for the Lesson

This lesson helps pupils understand the dangers of using unsterilized instruments for shaving and teaches them how to prevent infections and diseases.


Prerequisite/Previous Knowledge

Pupils are familiar with the use of clippers, razors, and combs from their home or salon experiences.


Lesson Content

Effects Of Shaving The Hair With Unsterilized Instruments

When we shave our hair, the tools used must be clean and sterilized. If instruments are dirty, they can cause sickness and infections.

Meaning of Unsterilized Instruments

Unsterilized instruments are tools that have not been properly cleaned or disinfected. They may carry germs, bacteria, or viruses that can spread from one person to another.

Effects of Using Unsterilized Instruments

The following are effects of shaving with unsterilized instruments:

  1. Causes ringworm on the head
  2. Causes skin rashes
  3. Leads to bumps and burns on the scalp
  4. Can spread HIV/AIDS
  5. Can cause tetanus infection
  6. Can spread hepatitis disease
  7. Makes wounds heal slowly
Ways to Prevent These Effects

These include:

  1. Always use sterilized clippers and razors
  2. Clean tools with spirit after each use
  3. Avoid sharing personal barbing tools
  4. Barbers should use gloves when working
  5. Go to clean and well-kept barbing salons

Teaching Methods

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


Instructional Procedures

To deliver this lesson, the teacher will adopt the following steps:

Step 1: Introduction

Time: 5 mins
Teaching Skill: Set Induction
Teacher’s Activity: Teacher shows pupils a razor and clipper, then asks if they know what they are used for and if they have ever been to a barbing salon.
Pupils’ Activity: Pupils answer by sharing their experiences.
Learning Point: Pupils’ interest is aroused and connection to prior knowledge is established.

Step 2: Meaning of Unsterilized Instruments

Time: 7 mins
Teaching Skill: Explanation
Teacher’s Activity: Teacher explains what unsterilized instruments are and shows dirty vs. clean combs and clippers.
Pupils’ Activity: Pupils observe and repeat the meaning of unsterilized instruments.
Learning Point: Pupils understand the meaning of unsterilized instruments.

Step 3: Effects of Using Unsterilized Instruments

Time: 10 mins
Teaching Skill: Lecture/Discussion
Teacher’s Activity: Teacher lists and explains the effects such as ringworm, rashes, HIV/AIDS, bumps, and tetanus. Teacher shows charts of infections.
Pupils’ Activity: Pupils copy the points into their notes and respond to questions.
Learning Point: Pupils learn the effects of unsterilized instruments.

Step 4: Ways to Prevent These Effects

Time: 7 mins
Teaching Skill: Demonstration
Teacher’s Activity: Teacher demonstrates cleaning a comb with spirit and explains good hygiene practices in barbing salons.
Pupils’ Activity: Pupils observe, practice cleaning motions, and list preventive measures.
Learning Point: Pupils learn how to prevent infections from barbing tools.

Step 5: Note Taking

Time: 4 mins
Teaching Skill: Writing/Organization
Teacher’s Activity: Teacher dictates or writes the summary on the board.
Pupils’ Activity: Pupils copy notes into their exercise books.
Learning Point: Pupils have a written record of the lesson.

Step 6: Evaluation

Time: 4 mins
Teaching Skill: Questioning
Teacher’s Activity: Teacher asks review questions based on objectives.
Pupils’ Activity: Pupils answer individually and in groups.
Learning Point: Teacher assesses pupils’ understanding.

Objective-aligned checks:

  1. Explain the meaning of unsterilized instruments.
  2. Show concern for safe and clean personal grooming.
  3. Identify examples of sterilized and unsterilized instruments.

Step 7: Conclusion

Time: 3 mins
Teaching Skill: Instructional/Cognitive Closure
Teacher’s Activity: Teacher reminds pupils that clean tools prevent infections and praises them for participation.
Pupils’ Activity: Pupils listen and repeat key points.
Learning Point: Pupils understand and remember the importance of safe shaving practices.


Home Task: List four lesson examples connected with Effects Of Shaving The Hair With Unsterilized Instruments and add one correct use, step or safety rule.

Lesson Keywords

  • Sterilized: Properly cleaned to kill germs
  • Unsterilized: Not properly cleaned, still dirty with germs
  • Infection: Sickness caused by germs
  • Ringworm: Skin disease that causes round patches on the head
  • Tetanus: Serious disease caused by dirty wounds

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

  1. Explain the meaning of unsterilized instruments.
  2. List four effects of shaving with unsterilized instruments.
  3. Mention three diseases that can be spread through dirty clippers.
  4. State three ways to prevent the effects of unsterilized instruments.
  5. Identify one difference between sterilized and unsterilized tools.

Differentiation

Teacher will support slower learners by repeating explanations with pictures, while fast learners will give more examples of safe practices.


Note for teachers using this lesson plan

Encourage pupils to share personal experiences at the barber’s shop. Use real tools to make the lesson practical and memorable.

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