This study deals with the most popular forms of the classroom communication related to the scientific cognitive models. The teachers tend to use simple intuitive models to describe the teaching issues: "Bucket theory"; "Knowledge floodlight"; "Interaction"; "Rationalism"; "Criticism"; "Anamnesis"; "Cognition cycle"; "Anything goes". Nevertheless, we can find all these models in university courses of history, philosophy, psychology, pedagogy and didactics. However, the opinion of a physics teacher, who thinks that he has invented a radically new pedagogical instrument, is quite interesting. Many teachers use these models unconsciously and in a peculiar interpretation. And their experience is remarkably useful.