JSS1 Second Term Basic Technology Lesson Note – Using the Tee and Set Square for Drawing Board

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WEEK 5

TOPIC: BOARD PRACTICE

SUB- TOPIC: Using The Tee And Set Square For Drawing Board; Horizontal And Vertical Lines

 Content Development (NOTES FOR SECOND LESSON/PERIOD TWO)

Using the tee and set squares for drawing Lines

This is a practical topic. The teacher should DEMONSTRATE this as much as possible in class for the students

The various uses of setsquares are given below:

Types and Uses of Lines in Technical Drawing

TYPES OF LINES	THEIR USES
Thick continuous line	For visible outlines and edges.
Thin continuous line	For dimension lines, projection lines and construction lines.
Thin long chain line	For cutting and viewing planes as centre lines and path lines for indicating movement

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