摘要：AbstractConstructivists claim that we get to know the world through of knowledge we possess. Students do not come to the class as carte blanche. Their knowledge may be correct or erroneous. The school's task is to transform common misconceptions about the world into correct ideas. The teachers should use open dialogue and students’ preconceptions to connect new information with the information already internalized. The article shows students’ misconception regarding biological knowledge and a model dialogue in class. Additionally, authors propose a standardized didactic tool: a task which may be helpful in diagnosing the problem.
