Sistema de validação de aspectos técnicos e pedagógicos de videoaulas : construindo recomendações e visualizações para apoiar o professor

Abstract

With the advancement of education technology and the trend of acceptance of virtual learning environments such as MOOCs and video platforms such as YouTube by students and teachers, the migration to these types of platforms is increasing, and the teachers who decide accepting the change must adapt the production of specific teaching material for such online environments. Video classes are the main teaching material available in most courses and online classes, but their production challenges the prior technical knowledge that most teachers have. As a way to support the teacher in the production of better video lessons, this work proposes a Video Lesson Validation System (SVV), characterized by processing the teachers videos and returning a series of presentable, easy-to-read and understandable information and data. A first study was carried out to detect the most relevant aspects of video classes for the acceptance of students about the material, which highlighted the duration of the video, type of video presentation (talking head), frequency of scene changes, presence of noise , image resolution and good resolution of problems and issues in the video. Aspects were used to build a dashboard with information about the video class based on these aspects. A second study showed that the dashboard was well accepted by a sample of participants that involved computer students and teachers, reinforcing the usefulness of the proposed tool for improving video classes.