Overview of past research on emergent bilingual students in the U.S.
In the past, researchers interested in the language development and use of emergent bilingual children in the U.S.âchildren who know one language at home (heritage language) and who are acquiring English (societal language) at school (GarcĂa, Kleifgen, & Falchi, 2008)âpaid attention to the language development of young bilingual children from a monoglossic perspective (Creese & Blackledge, 2010; Wei, 2011), in which bilinguals were viewed as developing competence in two separate languages since â[they] are expected to be and do with each of their languages the same thing as monolingualsâ (GarcĂa, 2011, p. 189). From this monoglossic point of view, researchers and educators studied bilingual learnersâ language uses by considering their two languages as separate rather than continuous notions (Cook, 2001; Martin-Beltran, 2010). As a result, researchers who investigated emergent bilingual childrenâs language use often analyzed their use of each language independently of each other.
In addition, studies in bilingual and biliteracy education have focused more on the bilingual childrenâs development and use of their second language (L2, English) than on their first language (L1) or heritage language (HL) (August & Shanahan, 2010; Goldenberg, 2011; Shanahan & Beck, 2006). For example, a number of researchers investigated how emergent bilinguals developed their English language and literacy skills (e.g., Francis, Lesaux, & August, 2006; Golberg, Paradis, & Crago, 2008; Hinton, 2015; Rodriguez-Mojica, 2017; Yang, Fox, & Jacewicz, 2015). Yet, comparatively, little attention has been given to emergent bilingualsâ language and literacy development in their HLs (August & Shanahan, 2010; Goldenberg, 2011; Seals & Peyton, 2017; Szilagyi & Szecsi, 2020).
Several researchers reported that when emergent bilingual children attended U.S. schools where the instruction was delivered in English only, the children often lost or did not continue to develop their HL (Hinton, 2008; Montrul, 2018; Polinsky, 2011, 2018; Ro & Cheatham, 2009; Shin, 2005; Tse, 2001). Other researchers reported that language shift or âthe replacement of one language by another as the primary means of communication and socialization within a communityâ (Mesthrie, Swann, Deumert, & Leap, 2001, p. 253) had largely occurred with Latinx students (Beaudrie, Ducar, & Potowski, 2014; Gandara & Hopkins, 2010; Potowski, 2016; Suarez-Orozco, Suarez-Orozco, & Todorova, 2008) as well as Korean immigrant children in the U.S. (Chung, 2008; Lee & Wright, 2014; Shin & Lee, 2013).