Aureli Caamaño Ros

English In this article we analyze the most significant changes that have taken place in chemistry teaching from the 1970s to the present, reviewing experimental chemistry in the 1970s, research on alternative student con-ceptions and constructivism in the 1980s, curricular changes brought about by the reform of the education system in the 1990s, the emphasis on inquiry, modeling, and chemistry in context in the 2000s, and reflection on the conceptual structure of chemistry and progressive...