basic technology (Secondary School)

FREEHAND SKETCHING

DEFINTION OF FREEHAND SKETCHING Freehand Sketching is one of the quickest methods by which the shape of an object can be communicated to others.  This is done by using a pen or pencil. Architects think more of imaginary objects; they cannot take photographs but express this using freehand sketching. Therefore, the knowledge of freehand sketching…

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basic technology (Secondary School)

BOARD PRACTICES AND SCALE DRAWING

DEFINITION OF BOARD PRACTICE Board practice is the act of learning how to use drawing instrument on drawing board to draw vertical, horizontal, incline lines etc., in order to display good board practice, it is necessary to use the appropriate drawing instruments which includes the following: 1. Drawing board 2. Tee-square 3. Set-square 4.Pair of…

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basic technology (Secondary School)

DRAWING PRACTICE

DEFINITION OF TECHNICAL DRAWING Technical drawing is a universal language used for communication among technical people. Technical people are the engineers, technicians, builders, draughts men, etc. It is the language expressed in terms of graphical illustrations which convey the idea of the shape, size and other features of engineering components used in the manufacturing and…

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