Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (16DHL1014)
IPN – Leibniz-Institut für die Pädagogik der Naturwissenschaften und Mathematik an der Universität Kiel
Received: 5 October 2020
Accepted: 15 February 2021
First Online: 3 March 2021
Ethics approval and consent to participate
: All appropriate approvals and signed informed consent forms were obtained.
: We received consent from all study participants to collect and publish the data they shared with us.
: The authors declare they have no competing interests.