This project-based class focuses on developing an instructed second language acquisition (ISLA) study that addresses a pedagogical issue. Students are encouraged to situate themselves in the classroom and identify a pedagogical, as opposed to theoretical, issue that has a direct impact on students’ learning outcomes. Although qualitative research will be discussed, a primary focus will be given to quantitative and mixed-methods research. Throughout the course, students work on key components required to conduct a rigorous ISLA study, with a hands-on support from the instructor. By the end of the course, students will have developed theoretically and methodologically sound materials and tools to conduct an ISLA study.