Class: Senior Secondary School 1 (SS1, SS 1, SSS1, SSS 1)
Term: 1st Term
Week: 3
Age: 15 years
Duration: 45 minutes
Subject: Technical Drawing
Curriculum Theme: Technical Drawing
Previous Lesson: Board Practice: Sheet Fixing, Border Line and Lettering.
Topic: SAFE WORKING HABITS
Subject Matter: safe use and care of drawing instruments, safe handling of board tee square and compasses, clean habits in the studio, proper lighting and ventilation, rules against horseplay and throwing instruments

Specific Objectives

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

Cognitive Domain:

Define safe working habits in a technical drawing studio.
List at least four safe practices for using and caring for drawing instruments.
State two reasons why proper lighting and ventilation are important in the studio.

Affective Domain:

Appreciate the importance of maintaining a safe and clean drawing environment.
Develop a positive attitude towards following safety rules in the studio.

Psychomotor Domain:

Demonstrate the safe handling of drawing instruments, the drawing board, tee square, and compasses.
Practice clean habits within the drawing studio.

Collaborate with peers to ensure a safe and orderly studio environment.
Adhere to rules against horseplay and throwing instruments.

Reference Materials

The following resources were used in planning this lesson:

9 Years Basic Education Curriculum for Technical Drawing.
State Unified Scheme of Work for Technical Drawing.
F.K. Osunbor (2010). Technical Drawing for Senior Secondary Schools. Evans Brothers (Nigeria Publishers) Limited.

Instructional Materials

The teacher will teach this lesson with the aid of:

Various drawing instruments (e.g., set squares, protractor, compasses, pencils).
Drawing board and tee square.
Safety posters and charts illustrating safe practices.
Short video clips demonstrating safe studio habits (if available).

Rationale for the Lesson

This lesson helps pupils understand the importance of safety and good habits when working in a technical drawing studio. It enables them to prevent accidents, maintain their instruments, and create a conducive learning environment for themselves and others. Understanding these habits is important for their personal safety and the longevity of drawing equipment.

Prerequisite/Previous Knowledge

Pupils have basic knowledge of technical drawing instruments and their primary uses from previous lessons.

Lesson Content/Board Summary

SAFE WORKING HABITS IN THE TECHNICAL DRAWING STUDIO

Definition of Safe Working Habits

Safe working habits are a set of practices and behaviours adopted to prevent accidents, protect personal health, maintain equipment, and ensure an orderly and productive environment in the technical drawing studio.

Safe Use and Care of Drawing Instruments

The following are safe practices for using and caring for drawing instruments:

Always handle sharp instruments like compasses and dividers with care to avoid injury.
Keep instruments clean and free from dust or graphite smudges.
Store instruments properly in their cases or designated compartments when not in use.
Avoid dropping instruments, as this can damage them or cause injury.
Use instruments only for their intended purpose; do not use them as weapons or toys.

Safe Handling of Drawing Board, Tee Square, and Compasses

The following are safe handling practices for drawing equipment:

Ensure the drawing board is stable and secure before starting work.
Carry the tee square flat against the board or by its head, avoiding hitting others.
Do not use compasses with pointed ends to poke or threaten others.
Always keep the drawing board tidy, free from unnecessary clutter.

Clean Habits in the Drawing Studio

The following are important clean habits:

Keep your workspace neat and tidy during and after drawing.
Dispose of pencil shavings and waste paper in designated bins.
Avoid eating or drinking near drawing instruments and papers to prevent spills and stains.
Wash hands before and after drawing to prevent smudging drawings and to maintain hygiene.

Importance of Proper Lighting and Ventilation

The following are reasons for proper lighting and ventilation:

Adequate lighting helps to reduce eye strain and improves visibility for accurate drawing.
Good ventilation ensures a supply of fresh air and prevents the build-up of dust or fumes from drawing materials.
Proper lighting helps to avoid shadows that can affect drawing accuracy.

Rules Against Horseplay and Throwing Instruments

The following rules must be observed:

Avoid running, pushing, or engaging in any form of horseplay in the drawing studio.
Never throw drawing instruments, as they can cause serious injury or damage to property.
Maintain a calm and focused environment to ensure concentration and safety.

Teaching Methods/Instructional Techniques

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

Instructional Procedures

Step 1: Introduction

Time: 5 minutes
Teaching Skill: Set Induction/Review
Teacher’s Activity: The teacher greets the pupils and asks them to recall the previous lesson on basic drawing instruments. The teacher then introduces the new topic by asking pupils if they think safety is important when using these instruments.
Pupils’ Activity: Pupils respond to questions and listen attentively.
Learning Point: Pupils recall previous knowledge and are introduced to the topic of safe working habits.

Step 2: Definition of Safe Working Habits

Time: 7 minutes
Teaching Skill: Explanation/Definition
Teacher’s Activity: The teacher explains what safe working habits are, emphasizing their importance in preventing accidents and maintaining equipment. The teacher writes the definition on the board.
Pupils’ Activity: Pupils listen, take notes, and ask questions for clarification.
Learning Point: Pupils understand the definition of safe working habits.

Step 3: Safe Use and Care of Drawing Instruments

Time: 8 minutes
Teaching Skill: Demonstration/Explanation
Teacher’s Activity: The teacher demonstrates the correct and safe handling of various drawing instruments, such as compasses, set squares, and pencils. The teacher explains how to clean and store them properly. The teacher refers to safety posters.
Pupils’ Activity: Pupils observe the demonstration, practice handling instruments, and take notes on key points.
Learning Point: Pupils learn and practice safe ways to use and care for drawing instruments.

Step 4: Safe Handling of Drawing Board, Tee Square, and Compasses

Time: 7 minutes
Teaching Skill: Demonstration/Discussion
Teacher’s Activity: The teacher demonstrates the safe way to carry a tee square, secure a drawing board, and handle compasses to avoid injury. The teacher asks pupils to suggest other safe practices.
Pupils’ Activity: Pupils observe, participate in the discussion, and practice the demonstrated techniques.
Learning Point: Pupils understand and practice the safe handling of larger drawing equipment.

Step 5: Clean Habits, Proper Lighting and Ventilation

Time: 7 minutes
Teaching Skill: Explanation/Questioning
Teacher’s Activity: The teacher discusses the importance of maintaining a clean workspace, proper disposal of waste, and personal hygiene. The teacher also explains why good lighting and ventilation are important for comfort and accuracy, showing relevant charts.
Pupils’ Activity: Pupils listen, contribute their ideas on cleanliness, and understand the benefits of proper studio conditions.
Learning Point: Pupils learn about the importance of studio cleanliness, lighting, and ventilation.

Step 6: Rules Against Horseplay and Throwing Instruments

Time: 5 minutes
Teaching Skill: Direct Instruction/Warning
Teacher’s Activity: The teacher firmly explains the rules against horseplay, running, and throwing instruments in the studio, highlighting the potential dangers and consequences. The teacher may show a short video clip if available.
Pupils’ Activity: Pupils listen and acknowledge the importance of these safety rules.
Learning Point: Pupils understand the need to avoid disruptive and dangerous behaviours.

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 safe working habits in the technical drawing studio.
List three safe practices when using drawing instruments.
State two ways to safely handle a tee square.
Explain why proper lighting is important in a drawing studio.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 1 minute
Teaching Skill: Closure
Teacher’s Activity: The teacher summarizes the key points of the lesson, re-emphasizing the importance of safety. The teacher assigns pupils to list five safe working habits they will practice in the studio as homework.
Pupils’ Activity: Pupils listen to the summary and note down the homework.
Learning Point: Pupils reinforce their understanding and are given a task to apply their learning.

Lesson Keywords

Safe Working Habits – Practices and behaviours to prevent accidents and maintain an orderly environment.
Drawing Instruments – Tools used in technical drawing, such as compasses, set squares, and rulers.
Tee Square – A T-shaped instrument used for drawing horizontal lines and guiding set squares.
Horseplay – Rough, boisterous play or pranks that can lead to accidents.
Ventilation – The provision of fresh air to a room or building.

Differentiation

For pupils who grasp concepts quickly, they can be tasked with creating a small safety poster for the studio. Pupils needing more support will receive additional guidance during instrument handling demonstrations and will be paired with stronger peers for practice sessions.

Note for teachers using this lesson plan

Teachers should ensure that all demonstrations are clear and precise. Emphasize that safety is a shared responsibility. Encourage pupils to report any unsafe conditions or practices they observe. Regular reminders about safety rules are beneficial.