The model of flipped classrooms has been a heated topic for the recent years. The model flips the traditional approach of using class time for explaining concepts and homework for reinforcement. In the beginning, many teachers jumped in, but soon faced challenges, then kept asking: Can instruction be effectively delivered at home, releasing class time for discussions, questions, practices, projects and labs? Some argue that this teaching model will completely transform education, while others say it is simply an opportunity for boring lectures to be viewed in new locations. This article discusses the pros and cons of this teaching model, explores the new abilities teachers have to learn, and proposes approaches to implement a real flipped classroom.