The development and use of educational robotics offer almost unlimited chances for teaching design. In classrooms it results in numerous and continuously increasing possibilities for the promotion of competences and the differentiated and differentiating use of educational robots. Therefore, this paper reports long time experiences of the author and is intended to introduce into the history and the relevant literature of educational robotics in teaching settings, before it discusses the role of educational robots as technology artefacts, as educational technology and for technology education interconnected to coding and the engineering design process (edp). In addition, a structured overview is developed to provide orientation, discuss possible applications and offer basic assistance for teaching between coding and engineering.