School visits and field trips to museums and science centres are considered a powerful learning resource given their recreational and educational potential, but visits need to be integrated into classroom programming to optimize learning. In this study, we have attempted to design and build bridges between what a school needs and what a museum can offer, to ensure that future teachers acquire teaching skills that allow them to prepare a visit focused on learning. To that end, we make a "proposal for pre-service teacher training" consisting of designing and implementing a teaching unit cantered on a visit to the science centre. The study aims to assess how students' conceptions evolved with regard to the particular topic, using a pre- and post-test methodology, supported by qualitative analysis in the final reports. Although the results were limited to a single experiment, they provide evidence of an improvement in the methodological knowledge of teacher trainees regarding school visits to museums, although several aspects were identified to be worked on.