Abstract:

The teacher often creates his own didactic multimedia applications to increase the clarity and effectiveness of teaching. Capturing dynamic phenomena that are the subject of teaching, such as the course of a laboratory experiment, is very important for distance learning or self-study. In the case of fast or slow dynamic phenomena, it allows not only to replay the experiment repeatedly, but also to slow it down or speed it up. By processing the video recording, some details can be enlarged, or reduce, omit some uninteresting sequences or add something to explain and understand the content, etc. The creator can comment on the video, enrich it with text or sound. The growth in the use of multimedia applications, especially video recordings, in the field of education has increased in recent years and this expansion is expected to continue in the future. The pandemic and the use of video-conferencing tools such as Teams, Zoom, etc. also contributed to this. Despite the increase in such applications and interactive tools for their creation, multimedia applications and video tutorials themselves are rarely used in Slovakia, mainly because of the language in which they are created. Only a very small part of teachers can create their own multimedia didactic application for teaching. The aim of this paper is to show how multimedia can be used in the educational process, how to create them in a simple interactive way using freely available tools, how to motivate students to use them. This work focuses on the recording and editing of sound and video recording, their digitization and the editors used for their processing. We will present 2 editors in detail: Audacity for sound processing and HitFilm for video recording processing. To learn how to work with them, video tutorials are created that demonstrate the work process when creating an application. In the end, it presents the results of the evaluation of the quality of the tutorials, which was carried out through interviews among computer science study program students who discussed the topic of whether future computer science teachers are sufficiently prepared for their own creation and subsequent use of multimedia applications. They also evaluated whether the planned teaching hours in the study program of this topic is sufficient for mastering the work in these environments.

Keywords:

Multimedia, computer science, ICT competences of teachers, application creation, evaluation of didactic tools, informatics teacher, teacher training.