Positive impact of 3D CAD models employment in descriptive geometry education

Abstract

Classical Descriptive Geometry (DG) course used 2D drawings for 3D spatial elements representation. Computer graphic introduced simulation of a 3D geometric environment in contemporary DG teaching. Research aim is the impact of CAD models utilization in correlation to students’ overall academic success. The research was performed on the freshmen students at Civil Engineering Faculty of Belgrade University. DG lecturing combines blackboard drawings, PowerPoint presentations and 3D AutoCAD models. Preparation of practices assumed handouts - AutoCAD solutions, both 2D drawings and 3D models available at the official Faculty's website. Paper based questionnaire was employed after the first examination term. The results show significant contribution to the students' achievement with 3D models assistance introduction in DG teaching/learning process.