Video lessons: the human touch in an established blended learning

Abstract

This article explores the impact of using audiovisual materials on the teaching-learning processes, particularly in a course of Calculus A for Engineering degree programs at the National University of Mar del Plata (Argentina). The different stages in the design, elaboration, and implementation of various resources are presented. The contents covered through these materials correspond to Polar and Parametric Equations. As part of the process of using these materials, the modality known as Flipped Classroom was implemented, where the student's activity takes place before and during the in-person class. The theoretical framework used to analyze the didactic aspects is the Ontosemiotic Approach. The evaluation of these materials and their impact was carried out through teachers and students surveys. The latter valued these resources positively and showed a preference for videos with the visible presence of a teacher explaining instead of PowerPoint presentations with voice-over. The implementation of this type of material has also been extended to other contents of the course. In this way, this approach promotes active student participation in the learning process and focuses on the preferences of a digital native generation.