“…Prior studies suggest that group members' participation in social interaction and the types of their interaction during collaborative learning are related; for example, groups in which students participate more jointly also tend to show more positive socio-emotional interactions and higherquality cognitive interactions (Barron, 2003;Sinha et al, 2015). However, studies have rarely addressed the fact that social interaction in collaborative learning is not static: the degree of group members' participation in social interaction during collaborative learning can fluctuate (Engin, 2017;Määttä, Järvenoja, & Järvelä, 2012;Rocksén, 2017) and their engagement in cognitive and socio-emotional interactions can vary from moment to moment .…”