Abstract:

Educational processes rely increasingly on technological tools. Currently, among teachers' work, it is necessary to assess the relevance of new existing educational products and generate new proposals based on emerging technologies. In this sense, mobile mediated learning (M-Learning) and augmented reality (AR) allows students and teachers to get involved in innovative educational processes and, additionally, it is an opportunity to increase collaborative learning.

In this work an augmented reality application is proposed, the objective is to support the teaching and learning of abstract concepts in electromagnetic theory, these types of tools can contribute to the development of some skills, including motor skills and interaction with peers; In this work, a tool is presented in which the behaviour of multiple electric charges and the associated phenomena such as electric force and flow lines are visualized. The proposal is framed as a didactic tool to qualitatively represent the phenomena, likewise, the application includes activities with a logical sequence for teaching the theory.

The educational proposal is a mobile application based on augmented reality using markers, where the markers represent electrical charges. the idea is that, by focusing the markers with the device, the system presents the information associated with the simulation of the proposed configuration. That is, if the camera focuses on multiple electrical charges, the system presents the simulation of the phenomenon by updating the associated parameters, these being the magnitudes and the directions of the forces for each charge and the flow lines. Additionally, the user can make changes to the configuration which will allow the information to be updated in real time. All this information is presented in three dimensions.

The problem of generating flow lines in three dimensions is not as simple as in the two-dimensional case, so in this application an algorithm is proposed for the selection of the positions of the starting points of each flow line. The proposal lies in the use of selected polyhedra, the idea is that the vertices of each polyhedron are projected onto the surface of a unit sphere centered on the position of the charge. The selected polyhedra change according to the magnitude of the electric charge. The general result allows a fluid and easily customizable visualization of the phenomenon.

Keywords:

Augmented Reality, mobile learning, multimedia.