Problem-based learning (PBL) is an instructional methodology placing primary emphasis on students solving realistic problems in a team-oriented environment. In this article, authors discuss using PBL to integrate a language for specific purposes (LSP) track into an undergraduate biological engineering curriculum as a way to prepare students for an engineering career requiring job-specific foreign language skills. In Part I, the authors review PBL theory and anticipate problems that may arise when merging it with an LSP track. Part II details the development of a PBL/LSP module, including module performance objectives and assessment instruments. Areas of potential future research are also highlighted. Information is relevant to all languages. (This article contains 6 figures and 2 tables.)