Building instrument and materials IV
BASIC SCIENCE JSS1 second term
Sub-Theme: Drawing practice
Theme Materials and processing
WEEK 7
Building instrument and materials 4
Performance objectives
Students should be able to:
- Care for drawing instrument and materials.
Content
Care for drawing instruments
Just as we need to take care of ourselves, our clothing, houses and other properties so also do our drawing instrument need good care in order to prolong their service life and for safety reasons. Therefore, this precaution should be observed in respect of the following instruments.
Drawing board
- Do not use a pin for fastening your paper to the board, use tapes or clips.
- Do not use a blade or knife to cut something on the surface of your drawing board.
- Always cover the surface with cardboard or thick paper. .... View More
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