This study describes the theoretical foundations of a learning environment designed for an ICT teachers' graduate level course, and presents a comprehensive analysis of the qualitative data acquired regarding the course's implementation. Participants in the study included six ICT teachers enrolled in the "Embedded Systems and Robotic Applications" course of Spring 2018. A design-based research approach was used in order to achieve a systematic but flexible methodology. Within the scope of this study, robotics was used as a cognitive tool, and authentic learning principles were applied. The participants' reflections about the learning environment indicated that they were satisfied with the course settings, their motivation increased after the course, and they learned more effectively through the scaffolding provided by the instructor.