Branches of science and technical/engineering study have for a long time been the less favoured disciplines and students have not been interested in studying them. Informatics/computer education, based on its character, belongs to these disciplines, but on the contrary it belongs rather to the group of popular school subjects. The paper presents methodological background and major results of an evaluation of selected aspects of informatics teaching from students' point of view at upper secondary school level (ISCED 3A) in the Slovak Republic, Czech Republic and Belgium. Within this research, 14 selected factors were explored and these were popularity of the subject informatics, applicability of gained knowledge in one's own future, attractiveness of the informatics curriculum content, demands of the informatics curriculum, clarity of presentation of new material by teachers, attractiveness of curriculum presentation by teachers, suitability of particular methods for curriculum presentation, engagement level of tasks to be solved, clarity of textbooks used, usability of knowledge for solving practical problems, attractiveness of teaching aids used, way in which students make written notes of the presented subject matter, appropriateness of specific methods in written notes preparation and source of concern related to the subject.