“…Building content knowledge (i.e., knowledge related to the natural and social world; Connor et al, 2017; Kim et al, 2020) to enhance linguistic comprehension is just beginning to gain traction in the national conversation (Wexler, 2019). The accumulated science of reading clearly points to the necessity of building content knowledge, and there is a growing evidence base on the science of teaching reading through integrated literacy and knowledge‐building supports (e.g., Cervetti, Wright, & Hwang, 2016; Connor et al, 2017; Guthrie, Anderson, Alao, & Rinehart, 1999; Kim et al, 2020; Neuman & Kaefer, 2018; Vitale & Romance, 2012; Williams et al, 2016; Wright & Gotwals, 2017). In current U.S. practice in the primary grades across many large school districts, this has translated into explicitly building both language and knowledge through the use of content‐rich ELA instruction.…”