TERM – 2^ND TERM

WEEK SIX

Class: Senior Secondary School 3

Age: 17 years

Duration: 40 minutes of 5 periods each

Date:

Subject: Technical Drawing

Topic: CONVENTIONAL REPRESENTATION OF MATERIALS AND SYMBOLS

SPECIFIC OBJECTIVES: At the end of the lesson, pupils should be able to

I.) Identify symbols of materials used in construction (engineering materials, electrical materials, plumbing/piping materials)

INSTRUCTIONAL TECHNIQUES: Identification, explanation, questions and answers, demonstration, videos from source

INSTRUCTIONAL MATERIALS: Videos, loud speaker, textbook, pictures,

INSTRUCTIONAL PROCEDURES

PERIOD 1-2

PRESENTATION

TEACHER’S ACTIVITY

STUDENT’S

ACTIVITY

STEP 1

INTRODUCTION

The teacher identify and describe all the symbols of materials use in construction and what they stand for.

Students listens attentively to the teacher and participate actively .

STEP 2

NOTE TAKING

The teacher writes a summarized

note on the board

The students

copy the note in

their books

NOTE

CONVENTIONAL REPRESENTATION OF MATERIALS AND SYMBOLS

Engineering materials symbols

Engineering materials are often represented by symbols to indicate their properties and composition.

Electrical materials symbols

Electrical materials also have symbols used in electrical schematics and diagrams to represent various components and elements.

Plumbing/piping symbols

Plumbing and piping symbols are used in plumbing and mechanical drawings to represent various components, fixtures, and connections.

EVALUATION: 1. Sketch the following plumbing/piping symbols and state their uses.

CLASSWORK: As in evaluation

CONCLUSION: The teacher commends the students positively

Lesson Notes By Weeks and Term - Senior Secondary 3