This document summarizes the results of flipping a large enrollment academic skills course from a traditional lecture format to a flipped classroom approach. In 2015, the course used weekly lectures and seminars (232 students). In 2016, weekly video lectures were assigned as pre-class work and class time involved structured activities in small groups (315 students). Assessment results showed no significant differences in average rubric scores or pass rates between the two cohorts. While flipping the course was viable, ensuring all students complete pre-class work can be challenging. Lessons learned include the need to balance in-class and pre-class work. The presenters plan to formalize formative assessment and continue improving the flipped approach.