In this paper, we provide insight into the PBL project called PoLiMINT (Problem-oriented Learning in MINT). The project is located at the Bremen University of Applied Sciences and aims to introduce and foster PBL in the introductory phase of a physics study program. Concerning our general conditions, we will present our incremental implementation strategy and address the first elementary steps. In order to demonstrate our Scholarship of Teaching and Learning mode of reflecting the implementation process, we examine selected instructional and pedagogical difficulties and our problem-solving more closely.