Many well-respected groups and associated faculty have tackled the issues of Earth science classroom transformation through decades of research and application. Today, many significant pedagogical advances to the standard lecture-lab classroom formats have been presented, tested, and demonstrated effective. However, even instructors who are favorably inclined to these pedagogies are limited by class time; thus, sufficient in-class time may represent a substantial barrier to sustainable reform. This interactive workshop will address the utility of an instructional model that finds extra time for in-class activities through the adoption of a " flipped" class format. By moving part of the instruction outside the classroom, instructors are provided with time in class to incorporate active learning strategies that have been shown to decrease attrition and improve student performance.