A Strategy for Teaching and Learning Technical Drawing

The present study describes a strategy for teaching and learning technical drawing, by enhancing students' skills in spatial perception. This strategy was proposed by means of literature review, which identified the strengths and weaknesses of technical drawing concepts up to date. This study allowed to construct a framework in which contains a general guide to address this strategy. It is a method in which students play an active role, initially manually sketching and on the drawing board before proceeding to the computer. The manual drawing was supported by origami systems, and Piaget's pedagogy to understand the space-plane relationship. From another point of view, it was used the problem-based learning on the drawing by computer to draw components that were drawn by hand. The research was conducted over two years in the course of industrial engineering. Purposive sampling was used to select 32 students participating in this research. The principal findings of this research concern the evolutionary learning of the orthogonal projections that enable students to draw objects in the plane that they first saw in the space.