“…Research on classes in the US in which ELs and native speakers were grouped together indicated that student talk was reduced and few language learning opportunities were created, with students opting to complete their work quickly rather than communicate with peers (Jacob, Rottenberg, Patrick, & Wheeler, 1996). Scheduling English learners and native English speakers together provides limited language learning opportunities and may be detrimental to learning for ELs (Cathcart-Strong, 1986;Genesee, Lindholm-Leary, Saunders, & Christian, 2006;Platt & Troudi, 1997). High school students may sink rather than swim if they are removed from linguistic support too quickly (Robinson-Cimpian, Thompson, & Umansky, 2016;Slama, 2014).…”