The content is just an excerpt from the complete note for JSS1 Second Term Basic Technology Lesson Note – Using the Tee and Set Square for Drawing Board. Check below to download the complete PDF

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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