This study aimed to clarify the implementation of online classes and the evaluation and perception of their instructions through a questionnaire survey. The results indicate that online classes are conducted in high schools and are highly evaluated, but burdens and difficulties are not perceived as such. Rather, relationships with fellow teachers at school were perceived as a burden. Through this, the paper addresses issues in information and communications technology (ICT) education. After the impact of COVID-19 subsides, ICT education is expected to become increasingly popular in Japanese educational settings and schools. At this time, if we do not focus on improving the work environment for teachers, rather than on rapid changes in the educational environment, the burden on teachers will become heavier.