“…The vast majority of studies have focused on the academic progress and achievement of students on content‐based, district and/or standardized tests in English, or on the overall L2 proficiency levels students attain across grade levels (Carranza, 1995; Christian, 1996; Downs‐Reid, 2000; Essama, 2007; Fortune, 2001; Genesee, 1987, 2004; Lindholm‐Leary, 2001; Potowski, 2007a, 2007b; Turnbull, Lapkin, & Hart, 2001). Few studies have explored, in depth, the linguistic features that characterize Second Language Acquisition (SLA) in English by language‐minority children (Potowski, 2007a, 2009); even less is known about L2 development in the partner language by EHL students (Fortune & Song, 2016; Fortune & Tedick, 2015; Tedick & Young, 2016). Research on L2 acquisition processes and development in the partner language within TWI contexts is necessary to gain a deeper understanding of how these programs progress.…”