ENThe constructivist perspective is becoming a dominant paradigm in the fi eld of the science education. This approach in the initial science teacher training is not still too common at many European teacher training institutions. In this article the constructivist approach in science teacher training is described. Science teacher training in fi ve science teacher training institutions in fi ve European countries (Bulgaria, Czech Republic, Cyprus, Lithuania and Turkey) is compared in this article. These countries cooperate on the project which in the main goal is to implement constructivist approach in science teacher training. Key words: science teacher training, teacher training institution, science education, constructivism, constructivist approach.