Abstract:
The study involves the development of a technical drawing software package
called T.D. BASICS for the teaching and learning of technical drawing at secondary school level. A modular approach was adopted using the computer as medium of instruction. T.D BASICS is an individualized learning form of programs arranged in sequential order and broken down into small tasks or activities for the leaner to progress at his or her own rate.
I'he technical drawing software package is divided into two lessons. Lesson one: Technical Drawing Basics. Lesson two; Geometry Lesson one presents a check list of what a student of technical drawing should learn for effective drawing. These are.-Uses and care of drawing instruments, lines and lettering techniques, board practice, freehand sketching, dimensioning and notation. Lesson two presents in detail the technique associated with geometric constructions. It covers both the plane and solid geometry. Each lesson is divided into a number of modules programmed in a logical step by step order from simple to complex for use at all levels of the secondary school educational setting (JSS I - SSS3).
The objectives for each module are outlined at the beginning to give an insight
into the expected leaming outcome. Questions are equally provided at the end of
each module for student evaluation. The software was developed with visual
basic programming language. T.D BASICS was found to be useful in the
teaching and learning of technical drawing and as a self-educator. The application
software is fully interactive and user friendly. It runs on Microsoft windows
operating system.
