The following sections present the research results, which have been published in peer-reviewed journal articles and conference proceedings. The first article presents the results of a qualitative interview study exploring the reasoning of pre- and in-service teachers when “selecting dRs” for a specific teaching phase (Gonscherowski & Rott, 2022b). Next, the journal article “A systematic review of the literature on TPACK Instruments used with pre-service teachers from 2017 to 2023 focused on selecting digital resources” (Gonscherowski & Rott, 2025), examines the existing literature on TPACK instruments (Koehler et al., 2013; Mishra & Koehler, 2005), particularly selecting digital resources.