“…Several studies have emphasized the importance of roles in group interactions (Dillenbourg, 1999;Hoadley, 2010;Jahnke, 2010;Marcos-Garcia, Martinez-Mones, & Dimitriadis, 2015;Sarmiento & Shumar, 2010;Smith Risser & Bottoms, 2014;Spada, 2010;Stahl, Law, Cress, & Ludvigsen, 2014;Strijbos & De Laat, 2010;Volet et al, 2017). Recent work on scripted or assigned roles shows that the assignment of specific roles facilitates collaborative awareness (Strijbos, Martens, Jochems, & Broers, 2004), team discourse and performance (Gervits, Eberhard, & Scheutz, 2016;Xie, Yu, & Bradshaw, 2014), and the depth of knowledge co-construction by the group (De Wever, Keer, Schellens, & Valcke, 2010;Gu, Shao, Guo, & Lim, 2015).…”