This research explains and gives an overview of classroom teaching environment and communication between theacher and pupils. For many years this and similar questions had been intriguing researchers across the world but there is still no universal explanation of classroom teaching environment. However there is an agreement that numerous classroom factors, i.e. part of relation between a pupil and teacher and relation between pupils, affect the classroom teaching environment. This study shows definition of classroom teaching environment by different authors, its significance and the factors which have an impact on it. Moreover, the influence of selected factors is explained in more detail (relation between the teacher and pupils, curriculum and teaching strategies, physical features of the classroom, characteristics of teacher). Special emphasis is placed on teachers communication (verbal and nonverbal), i.e. his impact on classroom teaching environment. Second part of the study describes the results of the research, which had the purpose to determine how pupils evaluate classroom teaching environment and communication between teachers and pupils in chosen highschools of Varaždin.