Development of an online application for a blended learning STEM teacher training course

Experimento vertical bar 10+ is the Siemens Stiftung's teacher training program for STEM teachers at secondary schools. This program was recently converted into a blended learning format with alternating digital phases and face-to-face-sessions. In the digital phases, contents about value education, inclusion and computational thinking are taught interactively. In the face-to-face-phases, the teachers revive these contents and interrelate them to various practical experiments on the topics energy, environment and health. This article focuses on the digital module about computational thinking and in particular presents the operation of a self-constructed pH-meter using Arduino.