Teacher.solar :: open source/hardware toolbox for low bandwidth CO2-neutral online outdoor teaching Stifterverband's Senior Fellowship for Innovationen in Hochschullehre SoSe 2020 :: Bildung Biodigitale 0 :: On organic and artificial trees SoSe 2021 :: Gestaltung und Einsatz eines solarbetriebenen Online-Bildungsinstruments: Klang & Ton SoSe 2022 :: Bildung Biodigitale 1 :: Plants, Herbs, Weeds & co; Making of an outdoor digital education artefact