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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