“…Several recent projects (Hadley, Barnes, Wiernik et al, 2022;Justice et al, 2018;Rowe & Snow, 2020) have refined the field's understanding by summarizing the literature on adult-child exchanges. Across studies, one distinct element of the learning environment, whether in the home or the classroom, is adult talk that invites and extends child talk, variously termed interactive (Rowe & Snow, 2020), communication-facilitating (Justice et al, 2018), and bridge language (Hadley, Barnes, Wiernik et al, 2022). Interestingly, Systemic Functional Linguistics theory (Halliday, 1978) highlights that language may be used in unique ways and for distinct purposes in different contexts, and relative to the home, the early childhood classroom may offer a particularly high level of explicit instruction (Hadley, Barnes, Wiernik et al, 2022), making classroom conversations fruitful vehicles for language learning.…”