While recent research has examined students' and teachers' understanding of models and modeling, few studies have focused on how teacher educators can support preservice elementary science teachers in envisioning enriched learning processes and outcomes for their students while engaging in modeling practices. Informed by reflective practices through a case-based pedagogy, this qualitative case study investigated how preservice teachers take up learning about and learning with models and modeling practices as a multimodal knowledge-building process and reflect on their understanding of models and modeling in science education. This study is not just about teachers' understanding of models and modeling; it is about cultivating a broader perspective, acknowledging the multiplicities of modalities that modelers bring to the table in their engagement with modeling practices. Conducted in a science methods course at a southeastern U.S. research university, this study used various qualitative data sources, including teachers' written reflective responses to a case and commentary about a modeling-based lesson, modeling artifacts, and the video and audio recordings of the modeling-based lesson that was part of their methods course. Discussion of the findings highlights how reflective practices through a case-based pedagogy can expose preservice teachers to a better understanding of what meaningful and equitable modeling practices might look like in classroom settings by showing them what models are for, how they function, who gets to develop models, and whose knowledge contributes to modeling practices while building knowledge in science classrooms.