We report in this paper on a study of chemistry teachers' perceptions of their teaching in upper secondary schools in Sweden, regarding models of acids and bases, especially the Bronsted and the Arrhenius model. A questionnaire consisting of a Likert-type scale was developed, which focused on teachers' knowledge of different models, knowledge of…

This article explores how principals and teachers view their organizational communication processes, in successful and less successful schools. By dividing the organizational communication process into three dimensions--information, affirmation, and interpretation--different actions and expressions are visualized. To meet organizational needs, all…