Recently scholars have advocated for using teachers' practice as a site for teacher learning. The recent proliferation of online, digital spaces, including simulated classrooms, has paved the way for novel approaches within practice-based teacher education. Yet, limited research has investigated the extent to which and how the use of online, simulated teaching experiences promote teacher learning of core teaching practices. The purpose of this study was to examine whether and how integrating simulated teaching experiences into teacher education coursework impacts preservice teacher (PST) learning. Findings showed that the use of simulated teaching experiences within elementary teacher education methods courses resulted in evidence of statistically significant growth in PSTs' ability to engage in one core teaching practice: facilitating argumentation-focused discussions.