class: Primary Six
Term: First Term
Subject: Basic Science and Technology
Curriculum Theme: Basic Technology
Previous Lesson: Production Of Secondary Colours
Topic: Drawing Instruments
content/Learning Area: Board in Technical Drawing, Procedure of Board Practice
Time Allocation: 40 minutes

performance Objectives

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

Cognitive Domain:

1. Define the board in technical drawing and explain the procedures involved in board practice.

Affective Domain:

1. Appreciate the importance of precision and neatness in technical drawing.

Psychomotor Domain:

1. Demonstrate the correct way to set up a drawing board and execute basic board practice procedures.

Social Domain:

1. Collaborate effectively with peers during group practice sessions to enhance learning.

Reference Materials

9 – Years Basic Education Curriculum
Abuja Educational Resource center scheme of Work
NAPPS National Unified Scheme of Work
Online Information from Britannica – Drafting | Graphics, Technical Drawing & Design
Relevant Textbooks

Instructional Materials

To deliver this lesson, the teacher will employ the help of the following materials:

Drawing board
T-square
Set squares
Drawing paper
Clips or tape
Ruler and pencil

Rationale for the Lesson

This lesson is essential for developing skills in technical drawing. Understanding drawing instruments and their proper use is crucial for accuracy and precision in various technical fields.

Prerequisite/Previous Knowledge

Pupils have prior experiences with drawing tools.

Lesson Content

Drawing Instruments: Board in Technical Drawing and Procedures

In technical drawing, the board is a vital tool. It’s a flat surface for holding the drawing paper firmly, ensuring accuracy.

Board practice Procedures:

Board practice procedures involve a series of steps to ensure accurate and precise technical drawings.

The following are:

Set Up the Board: Prepare a clean, stable surface for the drawing board. Ensure the board is properly positioned and stable to prevent movement during drawing.
Position the Paper: Securely attach the drawing paper to the board using clips or tape, aligning it with the edges. Make sure the paper is smooth and wrinkle-free for accurate drawing.
use of T-square: Use the T-square to draw straight horizontal lines along the board’s edge.ensure the T-square is properly aligned with the edge of the board for accurate horizontal lines.
Utilize Set Squares: Employ set squares to draw perpendicular or angled lines. Use different set squares (e.g.,45-degree and 30/60-degree) to create various angles accurately.
Drawing with Precision: Use a sharp pencil and draw lightly to avoid mistakes, ensuring clean lines. Maintain a consistent pencil pressure for uniform line thickness and clarity.
Erasing Mistakes: use a soft eraser to carefully remove any mistakes without damaging the paper.Avoid excessive erasing to maintain the paper’s surface quality.
Checking Accuracy: Regularly check the accuracy of the drawing using a ruler or scale. Ensure all lines and angles are correct before proceeding further.

Teaching Methods

To deliver this lesson,‌ ⁤the teacher will⁤ adopt⁤ the following methods: Discussion, Description, Exhibition, Hands-on Practice, Question and Answer.

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 asks pupils about their experience with drawing tools and their understanding of technical drawing.
Pupils’ Activity: Pupils respond to questions and share their thoughts on drawing tools.

Step 2: Definition of Board in Technical Drawing

Time: 10 mins
Teaching Skill: Explanation,Demonstration
Teacher’s Activity: Teacher defines the board and explains its use in technical drawing,showing examples.
Pupils’ Activity: Pupils observe and take notes on the definition and use of the drawing board.

Step 3: Explanation of Board Practice Procedures

Time: 10 mins
Teaching Skill: Explanation,Demonstration
Teacher’s activity: Teacher explains step-by-step how to set up the board for drawing and secure the paper.
Pupils’ activity: Pupils observe and ask questions to clarify the board practice procedures.

Step 4: Practical Demonstration

Time: 10 mins
Teaching Skill: Hands-On Practice, Guided Practice
Teacher’s Activity: Teacher demonstrates setting up the drawing board and starting a basic drawing.
Pupils’ Activity: Pupils follow along by setting up their boards and starting their drawings.

Step 5: Note Taking

Time: 5 mins
Teaching Skill: Direct Instruction
Teacher’s Activity: Teacher instructs pupils to copy notes and key points into their notebooks.
Pupils’ Activity: Pupils write down the notes provided by the teacher.

Step 6: evaluation/Review

Time: 3 mins
Teaching Skill: Q&A
Teacher’s Activity: Teacher asks questions to evaluate pupils’ understanding of the lesson.
Pupils’ Activity: Pupils respond to the evaluation questions.

Objective-aligned checks:

Define the board in technical drawing and explain the procedures involved in board practice.
Demonstrate the correct way to set up a drawing board and execute basic board practice procedures.

Step 7: Conclusion

Time: 2 mins
teaching Skill: Summary, Reflective
Teacher’s Activity: Teacher summarizes the lesson and emphasizes the importance of correct board practices.
Pupils’ Activity: Pupils listen and reflect on what they have learned.

Lesson Keywords

Technical drawing – A precise method of creating accurate representations of objects or structures.
Drawing Board – A flat, stable surface used to hold drawing paper in place for technical drawings.
T-Square – A tool used to draw horizontal lines and align paper on a drawing board.
Set Squares – Triangular tools used to draw angles, typically 45-degree and 30/60-degree angles.
Board Practice – The procedures involved in setting up and using a drawing board for technical drawing.

Lesson Evaluation

To evaluate the learning, the teacher asks pupils to:

Define a board in technical drawing.
List the materials needed for setting up a drawing board.
Describe the steps in board practice.
Explain the importance of a T-square.
Show how to use set squares for different angles.

Assignment/Homework

Practice setting up a drawing board at home.
Draw basic shapes using a T-square and set squares.
Write a short paragraph on the importance of precision in technical drawing.

Differentiation

For slower learners: Provide one-on-one assistance and simplified instructions.
For advanced learners: Introduce more complex drawing exercises.
For visual/auditory/kinesthetic learners: Use visual aids, verbal explanations, and hands-on activities to cater to different learning styles.

Note for Teachers

Ensure that pupils understand the importance of precision and neatness in technical drawing. Provide clear demonstrations and hands-on practice to reinforce the concepts. Encourage pupils to ask questions and seek clarification when needed.