Class: Senior Secondary School 1 (SS1 / SSS 1)
Term: Third Term
Week: 5
Age: 15 years
Duration: 45 minutes
Subject: Upholstery
Curriculum Theme: Trade
Previous Lesson: Presentation Of Drawing: Free-Hand Sketching and Orthographic Projection.
Topic: PRESENTATION OF DRAWING
Subject Matter: Methods of presenting drawing, Organizing drawing sheets, Labeling and dimensioning, Neatness and clarity in presentation, Demonstration of presentations

Specific Objectives

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

Cognitive Domain:

Define drawing presentation.
State different methods of presenting drawings.
Explain the importance of neatness and clarity in drawing presentation.

Affective Domain:

Appreciate the need for proper organization of drawing sheets.
Value the importance of accurate labeling and dimensioning in technical drawings.

Psychomotor Domain:

Present a simple drawing using an agreed method.
Apply neat labeling and dimensioning to a drawing sheet.

Work cooperatively when sharing drawing materials.

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 Upholstery, SSS 1.
M.B. Okoro (2009). Basic Technical Drawing for Senior Secondary Schools. Learn Africa Plc.

Instructional Materials

The teacher will teach this lesson with the aid of:

Title block template
Drawing pencils
Eraser
Sample labeled drawing sheet

Rationale for the Lesson

This lesson helps pupils understand how to present their technical drawings clearly and professionally. Proper drawing presentation is important for effective communication in upholstery and other technical fields, ensuring that designs are easily understood and accurately followed.

Prerequisite/Previous Knowledge

Pupils have basic knowledge of technical drawing tools and have previously made simple drawings.

Lesson Content/Board Summary

PRESENTATION OF DRAWING

Definition of Drawing Presentation

Drawing presentation refers to the systematic arrangement and display of technical drawings on a sheet, including the drawing itself, labels, dimensions, and other relevant information, to ensure clarity and professional communication.

Methods of Presenting Drawing

The following are common methods of presenting drawings:

Orthographic Projections: Presenting multiple views (front, top, side) of an object.
Isometric Projections: Presenting a 3D view of an object from an angle.
Oblique Projections: Presenting a 3D view where one face is parallel to the projection plane.
Perspective Drawings: Presenting a realistic 3D view as seen by the eye, with vanishing points.

Organizing Drawing Sheets

Organizing drawing sheets involves arranging the drawing, title block, and other details in a standardized way. This includes:

Using appropriate paper size (e.g., A4, A3).
Creating a border around the drawing area.
Placing the title block in the designated area (usually bottom right corner).
Ensuring adequate spacing between different views or elements.

Labeling and Dimensioning

Labeling and dimensioning are essential for providing complete information about the drawing.

Labeling: Involves adding text to identify parts, materials, or specific features. Labels should be clear, concise, and legible.
Dimensioning: Involves indicating the size and geometric features of an object using lines, numbers, and symbols. Dimensions should be accurate, placed clearly, and avoid redundancy.

Neatness and Clarity in Presentation

Neatness and clarity are vital for effective communication in technical drawing. This involves:

Using sharp pencils for precise lines.
Erasing construction lines cleanly.
Ensuring all lines are consistent in thickness and darkness.
Maintaining clean drawing surfaces and tools.
Ensuring all text and numbers are legible and uniformly written.

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 welcomes the pupils and reviews the previous lesson on basic drawing techniques. The teacher then introduces the topic: “Presentation of Drawing” and explains that today’s lesson will focus on how to display drawings clearly and professionally.
Pupils’ Activity: Pupils respond to questions about the previous lesson and listen attentively to the introduction of the new topic.
Learning Point: Pupils recall previous knowledge and are prepared for the new topic.

Step 2: Methods of Presenting Drawing

Time: 7 minutes
Teaching Skill: Explanation/Illustration
Teacher’s Activity: The teacher explains different methods of presenting drawings, such as orthographic, isometric, and oblique projections, using the sample labeled drawing sheet as an example.
Pupils’ Activity: Pupils listen, observe the sample drawing sheet, and ask questions for clarification.
Learning Point: Pupils understand various methods used to present technical drawings.

Step 3: Organizing Drawing Sheets

Time: 7 minutes
Teaching Skill: Explanation/Demonstration
Teacher’s Activity: The teacher explains the importance of organizing drawing sheets, including using appropriate paper sizes, borders, and title blocks. The teacher demonstrates how to position the drawing and title block on a sheet using the title block template.
Pupils’ Activity: Pupils observe the demonstration and take notes on the proper organization of drawing sheets.
Learning Point: Pupils learn how to correctly organize a drawing sheet for professional presentation.

Step 4: Labeling and Dimensioning

Time: 7 minutes
Teaching Skill: Demonstration/Practice
Teacher’s Activity: The teacher explains the principles of labeling and dimensioning. Using the sample drawing, the teacher demonstrates how to add labels to parts and apply accurate dimensions, emphasizing clarity and standard conventions.
Pupils’ Activity: Pupils observe the teacher’s demonstration and attempt to practice basic labeling and dimensioning on a rough sketch.
Learning Point: Pupils understand the rules and techniques for effective labeling and dimensioning.

Step 5: Neatness and Clarity in Presentation

Time: 5 minutes
Teaching Skill: Emphasis/Discussion
Teacher’s Activity: The teacher discusses the importance of neatness and clarity in technical drawing presentation. The teacher gives examples of neat versus untidy drawings and highlights the impact of presentation on understanding.
Pupils’ Activity: Pupils participate in the discussion, sharing their observations on the importance of neatness.
Learning Point: Pupils appreciate the value of neatness and clarity in technical drawing for effective communication.

Step 6: Demonstration of Presentation

Time: 5 minutes
Teaching Skill: Demonstration
Teacher’s Activity: The teacher performs a complete demonstration of presenting a simple drawing from start to finish, incorporating all elements discussed: organization, drawing, labeling, and dimensioning.
Pupils’ Activity: Pupils observe the complete demonstration, paying attention to the sequence and application of techniques.
Learning Point: Pupils see a practical application of all learned presentation skills.

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 drawing presentation?
Mention two methods of presenting drawings.
State two important considerations when organizing a drawing sheet.
Explain why neatness is important in drawing presentation.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Pupils demonstrate understanding of the lesson.

Step 8: Conclusion

Time: 2 minutes
Teaching Skill: Summarization/Assignment
Teacher’s Activity: The teacher summarizes the key points of the lesson, reiterating the importance of proper drawing presentation in upholstery and other fields. The teacher assigns homework for pupils to practice presenting a simple drawing of an upholstery tool.
Pupils’ Activity: Pupils listen to the summary and copy down the homework assignment.
Learning Point: Pupils consolidate their learning and are given an opportunity to apply new knowledge.

Lesson Keywords

Presentation – The act of arranging and displaying information clearly.
Orthographic – A type of projection showing multiple 2D views of an object.
Isometric – A type of projection showing a 3D view of an object with all axes equally scaled.
Labeling – Adding descriptive text to parts or features of a drawing.
Dimensioning – Indicating the sizes and geometric features of an object on a drawing.
Title block – A section on a drawing sheet containing information like title, scale, date, and designer.

Differentiation

For pupils who grasp concepts quickly, the teacher can challenge them to present a more complex drawing with multiple views. For pupils who need more support, the teacher can provide pre-drawn outlines for them to practice labeling and dimensioning, offering one-on-one guidance during the practical session.

Note for teachers using this lesson plan

Ensure that enough drawing materials are available for all pupils for practical activities. Encourage pupils to aim for precision and neatness from the beginning. Provide constructive feedback on their drawing presentations. Emphasize that these skills are transferable to many technical disciplines beyond upholstery.