“…The main role of individual preparation before collaboration, compared with direct collaboration, lies in several aspects: activating prior knowledge, exposing knowledge gaps, facilitating engagement, and increasing sensitivity to noticing (Lam & Kapur, 2018). The individual preparation before collaboration, recognised in previous empirical studies (e.g., Beers et al, 2006;Farrokhnia et al, 2019), showed higher learning gains (Salomon, 1997;Stahl, 2006), higher motivation for group work (Van Boxtel et al, 2000), better collaboration products (Engelmann et al, 2014;Engelmann et al, 2009) as well as more indepth knowledge co-construction discourse (Tan et al, 2021). Meanwhile, a series of studies by Tsovaltzi et al (2015) identified knowledge solidification as a result of individual preparation before collaboration, and that students became less likely to accept alternative opinions during the following discussion, which directly interrupted the knowledge co-construction at the group level.…”