Information-communication technology (ICT) has an influence on all areas of human action. Even though it had its place in the curriculum dating back to its early days, in modern times its role in education has become much more pronounced. In this paper the current definition of information-communication technology is presented, its place in the educational system and the main characteristics of its use in schooling. Given the fact that we have recently been in a situation where our entire world has been turned upside down due to the coronavirus pandemic, a research was run in one of the high schools about the positions of students and teachers on the use of information-communication technologies during that period because their opinions about ICT are a major contributing factor to its use. We have based our research on the period of online classes. We wanted to answer whether teachers even use information-communication technologies, in what ways, what are their thoughts on advantages and drawbacks of its use and in what ways have they motivated their students during said period. We have used a questionnaire to collect the opinions of teachers and students in a high school in Samobor.