Dear Jean-Pierre Jost ,

I think most students will have a natural understanding of logic up to a point. The issue is whether it is sufficient and when and how such understanding needs to be strengthened and formalised through teaching. Perhaps a suitable starting point is to consider the application of logic within a specific science context. This could be formalised in a questionnaire to assess students' natural understanding.

Two suggestions for where to begin:

Without any doubts. I even had to include in my course on the methodology of science for undergraduates the basics of logic and theory of argumentation. Otherwise you will not cultivate a culture of scientific research and a culture of writing scientific texts.