1. Introduction
There is a broad consensus among researchers on the need to design, implement, and evaluate training strategies in which prospective teachers learn to question their approaches towards fundamental curriculum issues (what to teach and why, what to do with the ideas that pupils have, which tasks to start on in the classroom, how to track the evolution of pupils' learning, etc.). These actions should initiate solidly founded changes in our students' vision of science education, leading to a didactic knowledge base that is coherent with school inquiry-based approaches (Abell, 2007).
In this regard, we have for some time been working in our initial training classrooms with resources that have this orientation (Azcárate, 2000; Martín del Pozo, 2000; Rivero, 2000). They have allowed us to detect a certain progression in the approaches of our prospective teachers – from teaching that is teacher-centred to one that is more pupil-centred, but not really reaching one that is based on school research. The specific results we have obtained