Scientific and methodological foundations of hygienic assessment and examination of digital educational content

Abstract

Introduction. In a modern school, digital educational materials are widely used, implemented through electronic teaching aids. However, teachers in the learning process are not guided by the appropriate recommendations of hygienists. The purpose of the study is to substantiate hygienically significant parameters of digital educational content presented on devices equipped with a screen. Materials and methods. Hygienic observational, expert-analytical and physiological-hygienic studies were carried out to assess 460 electronic educational materials. Results. A number of indicators have been established that characterize the readability of educational materials of a digital school, four of which are regulated by the current sanitary legislation, and the rest are of a recommendatory nature. The assessment of the textual material made it possible to establish that the educational materials did not comply with the regulated and recommended hygienic requirements in all respects. The expert assessment showed that the hygienically not rationally designed educational material presented on the screens causes discomfort of the visual analyzer after working with it. Working with such material contributes to visual fatigue, at the same time, the use of hygienically rationally designed materials is characterized by positive trends in the state of the visual analyzer. Conclusion. A hygienically not rationally designed educational material presented on screens causes discomfort in the visual analyzer and promotes visual fatigue. Hygienic assessment and examination of used and developed digital educational content should be carried out in terms of text, color, illustrative design and design of electronic educational material.