DEVELOPMENT OF COMPUTERIZED TECHNICAL DRAWING LEARNING DESK FOR SECONDARY SCHOOLS

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 programs arranged T.D BASICS is an individualized in sequential learning form of order and broken down into small tasks or activities for the leaner to progress at his or her own rate. The 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 in 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 learning 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.