“…To date, we are aware of few curricula or programs that are designed to improve children's skills across these multiple dimensions of oral language (but see Clarke et al, 2010;Williams, 2005;Williams et al, 2004;Williams et al, 2005). Given evidence showing that early primary-grade teachers provide relatively a limited quantity of language-focused comprehension instruction (Connor et al, 2006;Justice et al, 2008;Walpole, Chow, & Justice, 2004), even in the context of adopting language-focused curricula (Connor et al, 2006;Justice et al, 2008;Pence et al, 2008;Pianta, Mashburn, et al, 2008;Walpole et al, 2004), the present study examined whether pre-K -grade 3 teachers' use of the Let's Know! supplement affected proximal and distal classroom processes corresponding to language-focused comprehension instruction.…”