El papel de los modelos en la práctica científica

Two decades of discussion about models as a basis for research and scienti- fic knowledge’s advances have allowed to open a new way in an space, which was in darkness due to prevail of theories in its important approximations during XX century. According to this view, there is a big motivation to find new ways about science, not only less dependent of Theoric Physics episte- mology, but also more accurate to real practices in physics and also in other sciences. The purpose of this article is to describe different alternatives and positions about model’s functions as representation and its frequently uses, which are established between scientific conceptual and material’s work. This view allows to take a position by the optimal conditions to tackle scien- ce’s dynamics and its teaching.