This article describes a project, which focuses on supporting competencies, which foster the ability to act in school settings by using a blended-learning scenario. The authors conclude that this project combines theoretical and practical learning by repeatedly putting students into situation, which let them prepare lessons based on their didactical knowledge, give lessons at school and reflect on them both independently as well as cooperatively in an online environment. The authors indicate that the competencies that are intended to be fostered are reflective competence and media competence in order to support students’ ability to act in school settings. During the process of this blended learning scenario, students tend to blend self-reflection and the reflection of others. In addition, students gain new awareness and knowledge by dealing with their own video material as well as material of others.