At the botanical garden of the University of Würzburg, we conducted practical lessons on bionics, focused on the lotus effect, with 260 students. Those approx. 14 years old, 8th-grade mid-level students were divided into two groups. During an instructional discussion about the topic, one group was confronted with their alternative conceptions…

In 2010 1.1 million pupils took private lessons in Germany, with 25% of all German children by the age of 17 having attended paid private lessons at some point in their school career (Klemm & Klemm, 2010). The high demand for support for learning curricular content led us to consider an integrated solution that speeds up both the design of…