Teachers from Wisconsin (4) and Puerto Rico (2) came together in Puerto Rico in July 2017 for the capstone week of their Research Experiences for Teachers Program (RET). Throughout the six-week program, the teachers had the opportunity to do authentic research and develop a new curriculum module in the laboratories of faculty members at either the UW MRSEC or the University of Puerto Rico Mayagüez (UPRM). During the capstone week program, the teachers met in person and presented their research experiences and curriculum modules to one another. The teachers also had the opportunity to learn about the language, culture, and food, as well as agricultural and educational systems in an area of the country that is very different than their home region.