Drawing Instruments and Material IV

Basic Technology J.S.S 1 Second Term

WEEK 7

Drawing Instruments and Material IV

Performance Objectives

Students should be able to:

1. State care for drawing instruments and materials

Content

Care of Drawing Instruments

Introduction:

Just as we need to take of ourselves, our clothing, houses and other property, so also do our drawing instruments need good care in order to prolong their service life and for safety reasons. Therefore, these precautions should be observed in respect of the following instruments:

Drawing board:

1. Do not use pins for fastening your paper to the board, use tapes or clips
2. Do not use a blade or knife to cut something on the surface of your drawing board.
3. Always cover the surface with cardboard or…