The document provides guidance for teachers on designing flipped classroom activities using existing educational content. It discusses key aspects of out-of-class and in-class activity design for a flipped classroom approach. For the out-of-class segment, it recommends identifying learning objectives and key concepts, locating relevant open educational resources for students, and designing assessments aligned to the learning objectives. For the in-class segment, it suggests engaging students in active learning strategies like think-pair-share and peer instruction that involve higher-order thinking and feedback. Examples are provided for how to structure different parts of the flipped classroom activity design.