Funding for this research was provided by:
Agence Nationale de la Recherche (ANR-16-CE28-0013, ANR-15-CE38-0011, ANR-19-CE46-000)
H2020 Research Infrastructures (SoBigData++)
Distinguished International Students Scholarship
Received: 27 February 2020
Accepted: 21 June 2020
First Online: 8 July 2020
Ethics approval and consent to participate
: Experiments were approved by relevant ethics committees, COERLE (<i>Comité Opérationnel d’Evaluation des Risques Légaux et Ethiques</i> of INRIA institute, favourable opinion no. 2017-014) and CNIL (<i>Commission Nationale de l’Informatique et des Libertés</i>, favourable opinion Avis CIL_UGA-2017_0980683). The study was conducted within a French primary school with permission from the relevant authorities of <i>Education Nationale</i>. Written informed consent was obtained from all adults of the teaching staff and from the parents of all the children who took part in the study.
: The authors declare that they have no competing interests.