Modelos de partículas en la iniciación a las ciencias físicas

Resum

First notions about structure of matter are taught in various curricula at the beginning of secondary school. Is it possible with these notions to build explicative and predictive models? What activities can we offer to the students in order to build and use models? We present here two examples of pedagogical approaches and the main directions we have chosen for teaching experiment with students, aged 13-14.